Merge pull request #3357 from skandragon/feat/picow-wifi-ble

Add WiFi to RPI PicoW (and perhaps others)

build_as_lib.py

@@ -20,10 +20,12 @@ for item in menv.get("CPPDEFINES", []):
         src_filter.append("+<helpers/stm32/*>")
     elif item == "ESP32":
         src_filter.append("+<helpers/esp32/*>")
+        src_filter.append("+<helpers/wifi/*>")
     elif item == "NRF52_PLATFORM":
         src_filter.append("+<helpers/nrf52/*>")
     elif item == "RP2040_PLATFORM":
         src_filter.append("+<helpers/rp2040/*>")
+        src_filter.append("+<helpers/wifi/*>")
     
     # DISPLAY HANDLING
     elif isinstance(item, tuple) and item[0] == "DISPLAY_CLASS":

examples/companion_radio/MyMesh.cpp

@@ -1,6 +1,9 @@
 #include "MyMesh.h"
 
 #include <Arduino.h> // needed for PlatformIO
+#ifdef ENABLE_WIFI_INTERFACE
+#include <WiFi.h>
+#endif
 #include <Mesh.h>
 
 #define CMD_APP_START                 1
@@ -932,6 +935,7 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
       _serial(NULL), telemetry(MAX_PACKET_PAYLOAD - 4), _store(&store), _ui(ui), _iter(0) {
   _iter_started = false;
   _cli_rescue = false;
+  cli_command[0] = 0;
   offline_queue_len = 0;
   app_target_ver = 0;
   clearPendingReqs();
@@ -2160,6 +2164,54 @@ bool MyMesh::handleCommand(const char* command, uint32_t sender_timestamp, char*
     return true;
   }
 
+#ifdef ENABLE_WIFI_INTERFACE
+  if (memcmp(command, "set wifi.ssid ", 14) == 0) {
+    StrHelper::strncpy(_prefs.wifi_ssid, &command[14], sizeof(_prefs.wifi_ssid));
+    savePrefs();
+    sprintf(reply, "> wifi.ssid is now %s (set wifi.pwd too, then reboot)", _prefs.wifi_ssid);
+    return true;
+  }
+  if (memcmp(command, "set wifi.pwd ", 13) == 0) {
+    StrHelper::strncpy(_prefs.wifi_pwd, &command[13], sizeof(_prefs.wifi_pwd));
+    savePrefs();
+    strcpy(reply, "> wifi.pwd updated (reboot to apply)");
+    return true;
+  }
+  if (strcmp(command, "set wifi.clear") == 0) {
+    _prefs.wifi_ssid[0] = 0;
+    _prefs.wifi_pwd[0] = 0;
+    savePrefs();
+    strcpy(reply, "> wifi config cleared (reboot to apply)");
+    return true;
+  }
+  if (strcmp(command, "get wifi.ssid") == 0) {   // no 'get wifi.pwd', by design
+    sprintf(reply, "> %s", _prefs.getWifiSSID()[0] ? _prefs.getWifiSSID() : "(not set)");
+    return true;
+  }
+  if (memcmp(command, "set wifi.enabled ", 17) == 0) {
+    _prefs.wifi_enabled = atoi(&command[17]) ? 1 : 0;
+    savePrefs();
+    sprintf(reply, "> wifi.enabled is now %d (reboot to apply)", _prefs.wifi_enabled);
+    return true;
+  }
+  if (strcmp(command, "get wifi.enabled") == 0) {
+    sprintf(reply, "> %d", _prefs.wifi_enabled);
+    return true;
+  }
+  if (strcmp(command, "get wifi.status") == 0) {
+    strcpy(reply, WiFi.status() == WL_CONNECTED ? "> connected" : "> disconnected");
+    return true;
+  }
+  if (strcmp(command, "get wifi.ip") == 0) {
+    if (WiFi.status() == WL_CONNECTED) {
+      sprintf(reply, "> %s", WiFi.localIP().toString().c_str());
+    } else {
+      strcpy(reply, "> (not connected)");
+    }
+    return true;
+  }
+#endif
+
   if (strcmp(command, "board") == 0) {
     strcpy(reply, board.getManufacturerName());
     return true;
@@ -2390,6 +2442,11 @@ void MyMesh::loop() {
     checkCLIRescueCmd();
   } else {
     checkSerialInterface();
+#if defined(ENABLE_WIFI_INTERFACE) && defined(RP2040_PLATFORM) && !defined(ENABLE_USB_INTERFACE)
+    // RP2040 WiFi builds are headless and have no way into the rescue CLI (that needs a
+    // display + long-press), so serve config commands on the otherwise unused USB serial
+    checkCLIRescueCmd();
+#endif
   }
 
   // is there are pending dirty contacts write needed?

examples/companion_radio/NodePrefs.h

@@ -48,6 +48,16 @@ public:
   char default_scope_name[31];
   uint8_t default_scope_key[16];
   int8_t tz_offset = 0;
+#ifdef ENABLE_WIFI_INTERFACE
+  #ifndef WIFI_SSID
+    #define WIFI_SSID ""
+  #endif
+  char wifi_ssid[33] = {0};   // if empty, the compile-time WIFI_SSID is used
+  char wifi_pwd[64] = {0};
+  uint8_t wifi_enabled = 1; // enabled by default to allow wifi only builds to work. wifi won't be started if ssid is empty
+  // use ssid from prefs, or fallback to ssid from build flags
+  const char* getWifiSSID() const { return wifi_ssid[0] ? wifi_ssid : WIFI_SSID; }
+#endif
 
 private:
   class RadioPrefs : public CommonRadioPrefs {
@@ -164,6 +174,21 @@ private:
 
   DynamicConfigSerializer custom;
 
+#ifdef ENABLE_WIFI_INTERFACE
+  class WiFiPrefs : public ConfigSerializer {
+    NodePrefs* _parent;
+  protected:
+    void structure() override {
+      def("ssid", _parent->wifi_ssid, sizeof(_parent->wifi_ssid));
+      def("pwd", _parent->wifi_pwd, sizeof(_parent->wifi_pwd));
+      def("enabled", _parent->wifi_enabled);
+    }
+  public:
+    WiFiPrefs(NodePrefs* parent) : _parent(parent) { }
+  };
+  WiFiPrefs wifi;
+#endif
+
 protected:
   void structure() override {
     def("name", node_name, sizeof(node_name));
@@ -176,9 +201,16 @@ protected:
     def("repeat", repeat);
     def("comp", companion);
     def("custom", custom);
+#ifdef ENABLE_WIFI_INTERFACE
+    def("wifi", wifi);
+#endif
   }
 public:
-  NodePrefs() : radio(this), gps(this), companion(this), custom(&radio) {
+  NodePrefs() : radio(this), gps(this), companion(this), custom(&radio)
+#ifdef ENABLE_WIFI_INTERFACE
+    , wifi(this)
+#endif
+  {
     node_name[0] = 0;
     default_scope_name[0] = 0;
     memset(default_scope_key, 0, sizeof(default_scope_key));

examples/companion_radio/main.cpp

@@ -26,19 +26,38 @@ MultiSerialInterface interface_manager;
     // include nrf52 bluetooth interface
     #include <helpers/nrf52/SerialBLEInterface.h>
     SerialBLEInterface bluetooth_interface;
+  #elif defined(RP2040_PLATFORM)
+    // include rp2040 (Pico W / CYW43) bluetooth interface
+    #include <helpers/rp2040/SerialBLEInterface.h>
+    SerialBLEInterface bluetooth_interface;
   #else
     #error "SerialBLEInterface is not defined for this platform"
   #endif
 #endif
 
 // include wifi interface
-#ifdef WIFI_SSID
+#ifdef ENABLE_WIFI_INTERFACE
+  #ifndef WIFI_SSID
+    #define WIFI_SSID ""
+  #endif
+  #ifndef WIFI_PWD
+    #define WIFI_PWD ""
+  #endif
   #ifndef TCP_PORT
     #define TCP_PORT 5000
   #endif
-  #ifdef ESP32
-    // include esp32 wifi interface
-    #include <helpers/esp32/SerialWifiInterface.h>
+  #ifndef WIFI_RETRY_INTERVAL
+    #if defined(RP2040_PLATFORM)
+      #define WIFI_RETRY_INTERVAL 30000   // each attempt blocks loop(), so retry less often
+    #else
+      #define WIFI_RETRY_INTERVAL 10000   // millis between reconnect attempts
+    #endif
+  #endif
+  #ifndef WIFI_RETRY_TIMEOUT
+    #define WIFI_RETRY_TIMEOUT 5000     // RP2040: cap on how long one join may block loop()
+  #endif
+  #if defined(ESP32) || defined(RP2040_PLATFORM)
+    #include <helpers/wifi/SerialWifiInterface.h>
     SerialWifiInterface wifi_interface;
   #else
     #error "SerialWifiInterface is not defined for this platform"
@@ -108,9 +127,13 @@ void halt() {
 }
 
 /* WIFI RECONNECT TRACKERS */
-#if defined(ESP32) && defined(WIFI_SSID)
+#ifdef ENABLE_WIFI_INTERFACE
   bool wifi_needs_reconnect = false;
   unsigned long last_wifi_reconnect_attempt = 0;
+  char wifi_ssid[33] = WIFI_SSID;   // replaced by stored prefs at boot, if set
+  char wifi_pwd[64] = WIFI_PWD;
+  bool wifi_was_connected = false;
+  bool wifi_enabled = false;   // set at boot from prefs; false also when the effective SSID is blank
 #endif
 
 void setup() {
@@ -191,23 +214,46 @@ void setup() {
 #endif
 
 // add wifi interface
-#ifdef WIFI_SSID
-  board.setInhibitSleep(true);   // prevent sleep when WiFi is active
-  WiFi.setAutoReconnect(true);
+#ifdef ENABLE_WIFI_INTERFACE
+  // use wifi ssid and password from prefs if ssid is not empty, otherwise use the build flag defaults
+  if (the_mesh.getNodePrefs()->wifi_ssid[0]) {
+    strcpy(wifi_ssid, the_mesh.getNodePrefs()->wifi_ssid);
+    strcpy(wifi_pwd, the_mesh.getNodePrefs()->wifi_pwd);
+  }
+  // only start wifi if enabled and ssid is not empty
+  wifi_enabled = the_mesh.getNodePrefs()->wifi_enabled;
+  if (wifi_enabled && wifi_ssid[0]) {
+#if defined(ESP32)
+    board.setInhibitSleep(true);   // prevent sleep when WiFi is active
+    WiFi.setAutoReconnect(true);
 
-  WiFi.onEvent([](WiFiEvent_t event, WiFiEventInfo_t info){
-      if (event == ARDUINO_EVENT_WIFI_STA_DISCONNECTED) {
-          WIFI_DEBUG_PRINTLN("WiFi disconnected. Flagging for reconnect...");
-          wifi_needs_reconnect = true;
-      } else if (event == ARDUINO_EVENT_WIFI_STA_GOT_IP) {
-          WIFI_DEBUG_PRINTLN("WiFi connected successfully!");
-          wifi_needs_reconnect = false;
-      }
-  });
+    WiFi.onEvent([](WiFiEvent_t event, WiFiEventInfo_t info){
+        if (event == ARDUINO_EVENT_WIFI_STA_DISCONNECTED) {
+            WIFI_DEBUG_PRINTLN("WiFi disconnected. Flagging for reconnect...");
+            wifi_needs_reconnect = true;
+        } else if (event == ARDUINO_EVENT_WIFI_STA_GOT_IP) {
+            WIFI_DEBUG_PRINTLN("WiFi connected successfully!");
+            wifi_needs_reconnect = false;
+        }
+    });
+#endif
 
-  WiFi.begin(WIFI_SSID, WIFI_PWD);
-  wifi_interface.begin(TCP_PORT);
-  interface_manager.addInterface(InterfaceType::WiFi, &wifi_interface);
+    WIFI_DEBUG_PRINTLN("connecting to %s", wifi_ssid);
+
+#if defined(RP2040_PLATFORM)
+    // the join itself blocks inside the core (CYW43::begin busy-waits for the
+    // association), so every attempt stalls the mesh loop. beginNoBlock() only skips the
+    // extra DHCP wait. Give the first connect a full window, then bound the retries below.
+    WiFi.beginNoBlock(wifi_ssid, wifi_pwd);
+    last_wifi_reconnect_attempt = millis();   // let DHCP finish before the poll can retry
+#else
+    WiFi.begin(wifi_ssid, wifi_pwd);
+#endif
+    wifi_interface.begin(TCP_PORT);
+    interface_manager.addInterface(InterfaceType::WiFi, &wifi_interface);
+  } else {
+    WIFI_DEBUG_PRINTLN("wifi disabled");
+  }
 #endif
 
 // add usb interface
@@ -262,13 +308,34 @@ void loop() {
 #endif
   }
 
-#if defined(ESP32) && defined(WIFI_SSID)
-  // Safely attempt to reconnect every 10 seconds if flagged
-  if (wifi_needs_reconnect && (millis() - last_wifi_reconnect_attempt > 10000)) {
-    WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect...");
-    WiFi.disconnect();
-    WiFi.reconnect();
-    last_wifi_reconnect_attempt = millis();
+#ifdef ENABLE_WIFI_INTERFACE
+  if (wifi_enabled) {
+    // RP2040 has no WiFi event callbacks, so poll the link state instead
+  #if defined(RP2040_PLATFORM)
+      wifi_needs_reconnect = (WiFi.status() != WL_CONNECTED);
+      if (wifi_was_connected == wifi_needs_reconnect) {   // link state changed
+        wifi_was_connected = !wifi_needs_reconnect;
+        if (wifi_was_connected) {
+          WIFI_DEBUG_PRINTLN("connected, listening on %s:%d", WiFi.localIP().toString().c_str(), TCP_PORT);
+        } else {
+          WIFI_DEBUG_PRINTLN("link lost");
+        }
+      }
+  #endif
+
+    // Safely attempt to reconnect if flagged. On RP2040 each attempt blocks the mesh loop
+    // for up to WIFI_RETRY_TIMEOUT, so retry less often and cap how long a join may stall.
+    if (wifi_needs_reconnect && (millis() - last_wifi_reconnect_attempt > WIFI_RETRY_INTERVAL)) {
+      WIFI_DEBUG_PRINTLN("Attempting manual WiFi reconnect to %s (status %d)...", wifi_ssid, WiFi.status());
+    #if defined(RP2040_PLATFORM)
+        WiFi.setTimeout(WIFI_RETRY_TIMEOUT);
+        WiFi.beginNoBlock(wifi_ssid, wifi_pwd);   // no reconnect() on this platform
+    #else
+        WiFi.disconnect();
+        WiFi.reconnect();
+    #endif
+      last_wifi_reconnect_attempt = millis();
+    }
   }
 #endif
 }

examples/companion_radio/ui-new/UITask.cpp

@@ -3,7 +3,7 @@
 #include "../MyMesh.h"
 #include "target.h"
 #include <time.h>
-#ifdef WIFI_SSID
+#ifdef ENABLE_WIFI_INTERFACE
   #include <WiFi.h>
 #endif
 
@@ -260,7 +260,7 @@ public:
       sprintf(tmp, "%02d/%02d/%d", dt.day(), dt.month(), dt.year());
       display.drawTextCentered(display.width() / 2, 80, tmp);
       #endif
-      #ifdef WIFI_SSID
+      #ifdef ENABLE_WIFI_INTERFACE
         IPAddress ip = WiFi.localIP();
         snprintf(tmp, sizeof(tmp), "IP: %d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
         display.setTextSize(1);

examples/companion_radio/ui-tiny/UITask.cpp

@@ -4,7 +4,7 @@
 #include "target.h"
 #include "u8g2_icons.h"
 
-#ifdef WIFI_SSID
+#ifdef ENABLE_WIFI_INTERFACE
   #include <WiFi.h>
 #endif
 
@@ -173,7 +173,7 @@ public:
       display.setCursor(0, 19);
       display.print(tmp);
 
-      #ifdef WIFI_SSID
+      #ifdef ENABLE_WIFI_INTERFACE
         IPAddress ip = WiFi.localIP();
         snprintf(tmp, sizeof(tmp), "IP: %d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
         display.setTextSize(1);

src/helpers/ConfigSerializer.cpp

@@ -1,4 +1,5 @@
 #include "ConfigSerializer.h"
+#include <stdlib.h>   // atoi/atol/atof (Arduino.h pulls this in on-device, native builds do not)
 
 bool ConfigSerializer::saveSerial(Stream& s) {
   Context context(&s, OP::WRITE);
@@ -62,6 +63,7 @@ int ConfigSerializer::Context::readNext() {
     case EXPECT_COMMA_OR_KEY:
       if (c == ',') { rd_mode = EXPECT_KEY; return TOK_WHITESPACE; }
     case EXPECT_KEY:
+      if (rd_len == 0 && c == '}') { rd_mode = EXPECT_COMMA_OR_KEY_OR_CLOSE; return TOK_END_OBJ; }  // empty object, eg. 'custom:{}'
       if (rd_len > 0 && c == ':') { rd_buf[rd_len] = 0; rd_len = 0; rd_mode = EXPECT_VAL_OR_OBJ; return TOK_KEY; }
       if (rd_len == 0 && is_whitespace(c)) return TOK_WHITESPACE;
       if (rd_len < CONFIG_MAX_KEYLEN-1 && is_key_char(c)) { rd_buf[rd_len++] = c; return TOK_WHITESPACE; }

src/helpers/rp2040/SerialBLEInterface.cpp

@@ -0,0 +1,201 @@
+// only built when the env enables the core BLE stack (build_as_lib.py globs this dir)
+#ifdef PIO_FRAMEWORK_ARDUINO_ENABLE_BLUETOOTH
+#include "SerialBLEInterface.h"
+#include <BluetoothLock.h>
+#include <stdio.h>
+#include <string.h>
+
+// Nordic UART 6E4000xx-B5A3-F393-E0A9-E50E24DCCA9E, as raw bytes: the core lib's string
+// parser uses sscanf("%llx"), which newlib-nano on the RP2040 doesn't support (yields all zeros)
+#define NUS_UUID(n) { 0x6E, 0x40, 0x00, n, 0xB5, 0xA3, 0xF3, 0x93, 0xE0, 0xA9, 0xE5, 0x0E, 0x24, 0xDC, 0xCA, 0x9E }
+static const uint8_t SERVICE_UUID[16]           = NUS_UUID(0x01);
+static const uint8_t CHARACTERISTIC_UUID_RX[16] = NUS_UUID(0x02);
+static const uint8_t CHARACTERISTIC_UUID_TX[16] = NUS_UUID(0x03);
+
+// The BLE core lib's own setValue()/notify path reallocs the value buffer on every call,
+// so a second frame queued before the radio drained the first would corrupt it. We keep our
+// own frame queue and drive att_server_notify() from the can-send-now callback instead.
+
+SerialBLEInterface::SerialBLEInterface()
+  : BLEService(BLEUUID(SERVICE_UUID)),
+    _rx(BLEUUID(CHARACTERISTIC_UUID_RX), BLEWrite, nullptr, ATT_SECURITY_AUTHENTICATED, ATT_SECURITY_AUTHENTICATED),
+    _tx(BLEUUID(CHARACTERISTIC_UUID_TX), BLERead | BLENotify, nullptr, ATT_SECURITY_AUTHENTICATED, ATT_SECURITY_AUTHENTICATED)
+{
+  _isEnabled = false;
+  _tx_pending = false;
+  send_queue_len = 0;
+  recv_queue_len = 0;
+  memset(&_can_send, 0, sizeof(_can_send));
+  _rx.setCallbacks(this);
+  addCharacteristic(&_rx);
+  addCharacteristic(&_tx);
+}
+
+void SerialBLEInterface::begin(const char* prefix, char* name, uint32_t pin_code) {
+  // JustWorks here only makes the server request pairing on connect; caps are overridden below
+  BLE.setSecurity(BLESecurityJustWorks);
+  // adv data carries the 128-bit service UUID, leaving room for only 8 name chars;
+  // the full name goes in the scan response
+  BLE.begin(prefix);
+
+  if (strcmp(name, "@@MAC") == 0) {
+    bd_addr_t a;
+    gap_local_bd_addr(a);
+    sprintf(name, "%02X%02X%02X%02X%02X%02X", a[0], a[1], a[2], a[3], a[4], a[5]);   // modify (IN-OUT param)
+  }
+  char dev_name[32+16];
+  snprintf(dev_name, sizeof(dev_name), "%s%s", prefix, name);
+
+  BLE.server()->setName(dev_name);   // GAP device name characteristic
+  BLE.server()->addService(this);
+  BLE.server()->setCallbacks(this);
+
+  // static passkey pairing with MITM protection, matching the esp32/nrf52 interfaces
+  sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY);
+  sm_set_authentication_requirements(SM_AUTHREQ_MITM_PROTECTION | SM_AUTHREQ_BONDING);
+  sm_use_fixed_passkey_in_display_role(pin_code);
+
+  size_t n = strlen(dev_name);
+  if (n > sizeof(_scan_rsp) - 2) n = sizeof(_scan_rsp) - 2;
+  _scan_rsp[0] = n + 1;
+  _scan_rsp[1] = BLUETOOTH_DATA_TYPE_COMPLETE_LOCAL_NAME;
+  memcpy(&_scan_rsp[2], dev_name, n);
+  gap_scan_response_set_data(n + 2, _scan_rsp);
+
+  BLE_DEBUG_PRINTLN("begin: name=%s", dev_name);
+}
+
+void SerialBLEInterface::clearBuffers() {
+  send_queue_len = 0;
+  recv_queue_len = 0;
+  _tx_pending = false;   // a stale registration just fires into an empty queue; BTstack ignores double-adds
+}
+
+void SerialBLEInterface::onConnect(BLEServer* s) {
+  BLE_DEBUG_PRINTLN("connected handle=0x%04X", _tx.conHandle());
+  clearBuffers();
+}
+
+void SerialBLEInterface::onDisconnect(BLEServer* s) {
+  BLE_DEBUG_PRINTLN("disconnected");
+  clearBuffers();   // BTstack re-enables advertising on its own
+}
+
+void SerialBLEInterface::onWrite(BLECharacteristic* c) {
+  if (c != &_rx) return;
+  size_t len = _rx.valueLen();
+  if (len == 0 || len > MAX_FRAME_SIZE) {
+    BLE_DEBUG_PRINTLN("onWrite: bad frame len=%u", (unsigned)len);
+    return;
+  }
+  if (recv_queue_len >= FRAME_QUEUE_SIZE) {
+    BLE_DEBUG_PRINTLN("onWrite: recv queue full, dropping frame");
+    return;
+  }
+  recv_queue[recv_queue_len].len = len;
+  memcpy(recv_queue[recv_queue_len].buf, _rx.valueData(), len);
+  recv_queue_len++;
+}
+
+// caller holds the BT lock (or is in the BT context)
+void SerialBLEInterface::kickSend() {
+  if (_tx_pending) return;
+  _tx_pending = true;
+  _can_send.callback = onCanSend;
+  _can_send.context = this;
+  if (att_server_register_can_send_now_callback(&_can_send, _tx.conHandle()) != 0) {
+    _tx_pending = false;
+  }
+}
+
+// BT context: one notification per can-send-now, re-arm while frames remain
+void SerialBLEInterface::sendNext() {
+  _tx_pending = false;
+  if (send_queue_len == 0) return;
+  if (!isConnected()) {
+    BLE_DEBUG_PRINTLN("sendNext: not connected, clearing send queue");
+    send_queue_len = 0;
+    return;
+  }
+  uint16_t h = _tx.conHandle();
+  Frame& f = send_queue[0];
+  uint16_t mtu = att_server_get_mtu(h);
+  if (f.len + 3 > mtu) {
+    // att would silently truncate; drop instead (client must negotiate MTU >= MAX_FRAME_SIZE+3)
+    BLE_DEBUG_PRINTLN("sendNext: frame len=%u exceeds mtu=%u, dropping", f.len, mtu);
+  } else {
+    uint8_t err = att_server_notify(h, _tx.valueHandle(), f.buf, f.len);
+    if (err == BTSTACK_ACL_BUFFERS_FULL) {
+      kickSend();
+      return;
+    }
+    if (err) {
+      BLE_DEBUG_PRINTLN("sendNext: notify failed err=%u, dropping", err);
+    } else {
+      BLE_DEBUG_PRINTLN("writeBytes: sz=%u, hdr=%u", f.len, f.buf[0]);
+    }
+  }
+  send_queue_len--;
+  memmove(&send_queue[0], &send_queue[1], send_queue_len * sizeof(Frame));
+  if (send_queue_len > 0) kickSend();
+}
+
+void SerialBLEInterface::enable() {
+  if (_isEnabled) return;
+  _isEnabled = true;
+  clearBuffers();
+  BLE.startAdvertising(true);
+}
+
+void SerialBLEInterface::disconnect() {
+  uint16_t h = _tx.conHandle();
+  if (h) gap_disconnect(h);
+}
+
+void SerialBLEInterface::disable() {
+  _isEnabled = false;
+  BLE_DEBUG_PRINTLN("disable");
+  disconnect();
+  BLE.stopAdvertising();
+}
+
+bool SerialBLEInterface::isConnected() const {
+  // notifications can only be enabled once the link is authenticated (CCCD inherits the perms)
+  return _isEnabled && _tx.conHandle() != 0 && _tx.notifyEnabled();
+}
+
+bool SerialBLEInterface::isWriteBusy() const {
+  return send_queue_len >= (FRAME_QUEUE_SIZE * 2 / 3);
+}
+
+size_t SerialBLEInterface::writeFrame(const uint8_t src[], size_t len) {
+  if (len == 0 || len > MAX_FRAME_SIZE) {
+    BLE_DEBUG_PRINTLN("writeFrame(), frame too big, len=%u", (unsigned)len);
+    return 0;
+  }
+  if (!isConnected()) return 0;
+
+  BluetoothLock lock;
+  if (send_queue_len >= FRAME_QUEUE_SIZE) {
+    BLE_DEBUG_PRINTLN("writeFrame(), send_queue is full!");
+    return 0;
+  }
+  send_queue[send_queue_len].len = len;
+  memcpy(send_queue[send_queue_len].buf, src, len);
+  send_queue_len++;
+  kickSend();
+  return len;
+}
+
+size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
+  BluetoothLock lock;
+  if (recv_queue_len == 0) return 0;
+
+  size_t len = recv_queue[0].len;
+  memcpy(dest, recv_queue[0].buf, len);
+  recv_queue_len--;
+  memmove(&recv_queue[0], &recv_queue[1], recv_queue_len * sizeof(Frame));
+  BLE_DEBUG_PRINTLN("readBytes: sz=%u, hdr=%u", (unsigned)len, dest[0]);
+  return len;
+}
+#endif

src/helpers/rp2040/SerialBLEInterface.h

@@ -0,0 +1,75 @@
+#pragma once
+
+#include "../BaseSerialInterface.h"
+#include <BLE.h>
+#include <btstack.h>
+
+// Nordic UART service over the arduino-pico BLE library (BTstack on the CYW43).
+// Build with -D PIO_FRAMEWORK_ARDUINO_ENABLE_BLUETOOTH so the core links liblwip-bt.
+class SerialBLEInterface : public BaseSerialInterface, BLEService, BLEServerCallbacks, BLECharacteristicCallbacks {
+  // subclass only to reach the protected connection/notify state
+  struct Characteristic : public BLECharacteristic {
+    using BLECharacteristic::BLECharacteristic;
+    uint16_t valueHandle() const { return _valueHandle; }
+    uint16_t conHandle() const { return con_handle; }
+    bool notifyEnabled() const { return _notificationEnabled; }
+  };
+
+  struct Frame {
+    uint8_t len;
+    uint8_t buf[MAX_FRAME_SIZE];
+  };
+
+  #define FRAME_QUEUE_SIZE  8
+
+  Characteristic _rx;
+  Characteristic _tx;
+  bool _isEnabled;
+  bool _tx_pending;   // a can-send-now callback is registered
+  btstack_context_callback_registration_t _can_send;
+  uint8_t _scan_rsp[31];   // complete local name; BTstack keeps the pointer
+
+  uint8_t send_queue_len;
+  Frame send_queue[FRAME_QUEUE_SIZE];
+  uint8_t recv_queue_len;
+  Frame recv_queue[FRAME_QUEUE_SIZE];
+
+  void clearBuffers();
+  void kickSend();
+  void sendNext();
+  static void onCanSend(void* ctx) { ((SerialBLEInterface*)ctx)->sendNext(); }
+
+  // BLE library callbacks (run in the BT context)
+  void onWrite(BLECharacteristic* c) override;
+  void onConnect(BLEServer* s) override;
+  void onDisconnect(BLEServer* s) override;
+
+public:
+  SerialBLEInterface();
+
+  /**
+   * init the BLE interface.
+   * @param prefix   a prefix for the device name
+   * @param name  IN/OUT - a name for the device (combined with prefix). If "@@MAC", is modified and returned
+   * @param pin_code   the BLE security pin
+   */
+  void begin(const char* prefix, char* name, uint32_t pin_code);
+
+  void disconnect();
+  void enable() override;
+  void disable() override;
+  bool isEnabled() const override { return _isEnabled; }
+  bool isConnected() const override;
+  bool isWriteBusy() const override;
+  size_t writeFrame(const uint8_t src[], size_t len) override;
+  size_t checkRecvFrame(uint8_t dest[]) override;
+};
+
+#if BLE_DEBUG_LOGGING && ARDUINO
+  #include <Arduino.h>
+  #define BLE_DEBUG_PRINT(F, ...) Serial.printf("BLE: " F, ##__VA_ARGS__)
+  #define BLE_DEBUG_PRINTLN(F, ...) Serial.printf("BLE: " F "\n", ##__VA_ARGS__)
+#else
+  #define BLE_DEBUG_PRINT(...) {}
+  #define BLE_DEBUG_PRINTLN(...) {}
+#endif

test/test_config_serializer/test_config_serializer.cpp

@@ -185,6 +185,47 @@ TEST(ConfigSerializer, LoadSerial_IgnoreUnknowns) {
     EXPECT_TRUE(match);
 }
 
+class TestNested : public ConfigSerializer {
+    class Inner : public ConfigSerializer {
+      protected:
+        void structure() override { }   // no properties, so it writes as '{}'
+    };
+    Inner inner;
+  protected:
+    void structure() override {
+        def("age", age);
+        def("inner", inner);
+        def("name", name, sizeof(name));   // comes *after* the empty sub-object
+    }
+  public:
+    int32_t age;
+    char    name[16];
+};
+
+TEST(ConfigSerializer, LoadSerial_EmptyObject) {
+    MockInputStream s("{age:" TEST_INT_S ",inner:{},name:\"Scott\"}");
+    TestNested data;
+    data.name[0] = 0;
+
+    bool success = data.loadSerial(s);
+    EXPECT_TRUE(success);
+
+    EXPECT_EQ(TEST_INT, data.age);
+    bool match = strcmp("Scott", data.name) == 0;
+    EXPECT_TRUE(match);   // properties after an empty object must still load
+}
+
+TEST(ConfigSerializer, LoadSerial_EmptyObjectWithWhitespace) {
+    MockInputStream s("{age:" TEST_INT_S ",inner:{  },name:\"Scott\"}");
+    TestNested data;
+    data.name[0] = 0;
+
+    bool success = data.loadSerial(s);
+    EXPECT_TRUE(success);
+    bool match = strcmp("Scott", data.name) == 0;
+    EXPECT_TRUE(match);
+}
+
 TEST(DynamicConfigSerializer, GetSet_Basic) {
     DynamicConfigSerializer data;
 

variants/heltec_rc32/platformio.ini

@@ -173,6 +173,7 @@ extends = Heltec_RC32
 build_flags =
   ${Heltec_RC32.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D DISPLAY_CLASS=NullDisplayDriver
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
@@ -185,6 +186,7 @@ build_src_filter = ${Heltec_RC32.build_src_filter}
   +<helpers/ui/buzzer.cpp>
   +<helpers/ui/NullDisplayDriver.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -314,6 +316,7 @@ extends = Heltec_RC32_with_display
 build_flags =
   ${Heltec_RC32_with_display.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D UI_HAS_ROTARY_INPUT
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
@@ -324,6 +327,7 @@ build_flags =
 build_src_filter = ${Heltec_RC32_with_display.build_src_filter}
   +<helpers/ui/buzzer.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/heltec_tracker_v2/platformio.ini

@@ -182,6 +182,7 @@ extends = Heltec_tracker_v2
 build_flags =
   ${Heltec_tracker_v2.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=ST7735Display
@@ -195,6 +196,7 @@ build_src_filter = ${Heltec_tracker_v2.build_src_filter}
   +<helpers/ui/ST7735Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/heltec_v2/platformio.ini

@@ -178,6 +178,7 @@ extends = Heltec_lora32_v2
 build_flags =
   ${Heltec_lora32_v2.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D DISPLAY_CLASS=SSD1306Display
   -D MAX_CONTACTS=160
   -D MAX_GROUP_CHANNELS=8
@@ -189,6 +190,7 @@ build_flags =
 ; -D MESH_DEBUG=1
 build_src_filter = ${Heltec_lora32_v2.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>

variants/heltec_v3/platformio.ini

@@ -185,6 +185,7 @@ extends = Heltec_lora32_v3
 build_flags =
   ${Heltec_lora32_v3.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=SSD1306Display
@@ -198,6 +199,7 @@ build_src_filter = ${Heltec_lora32_v3.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -340,6 +342,7 @@ lib_deps =
 extends = Heltec_lora32_v3
 build_flags =
   ${Heltec_lora32_v3.build_flags}
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D WIFI_DEBUG_LOGGING=1
@@ -350,6 +353,7 @@ build_flags =
 ;  -D MESH_DEBUG=1
 build_src_filter = ${Heltec_lora32_v3.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
 lib_deps =
   ${Heltec_lora32_v3.lib_deps}

variants/heltec_v4/platformio.ini

@@ -228,6 +228,7 @@ extends = heltec_v4_oled
 build_flags =
   ${heltec_v4_oled.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -241,6 +242,7 @@ build_src_filter = ${heltec_v4_oled.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -393,6 +395,7 @@ extends = heltec_v4_tft
 build_flags =
   ${heltec_v4_tft.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -406,6 +409,7 @@ build_src_filter = ${heltec_v4_tft.build_src_filter}
   +<helpers/ui/ST7789LCDDisplay.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/heltec_v4_r8/platformio.ini

@@ -175,6 +175,7 @@ extends = heltec_v4_r8_oled
 build_flags =
   ${heltec_v4_r8_oled.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -186,6 +187,7 @@ build_src_filter = ${heltec_v4_r8_oled.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -300,6 +302,7 @@ extends = heltec_v4_r8_tft
 build_flags =
   ${heltec_v4_r8_tft.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -311,6 +314,7 @@ build_src_filter = ${heltec_v4_r8_tft.build_src_filter}
   +<helpers/ui/ST7789LCDDisplay.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/lilygo_tbeam_1w/platformio.ini

@@ -153,6 +153,7 @@ extends = LilyGo_TBeam_1W
 build_flags =
   ${LilyGo_TBeam_1W.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -165,6 +166,7 @@ build_flags =
 ;  -D MESH_DEBUG=1
 build_src_filter = ${LilyGo_TBeam_1W.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/lilygo_tbeam_supreme_SX1262/platformio.ini

@@ -148,6 +148,7 @@ extends = T_Beam_S3_Supreme_SX1262
 build_flags =
   ${T_Beam_S3_Supreme_SX1262.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -160,6 +161,7 @@ build_flags =
 ;  -D CORE_DEBUG_LEVEL=4
 build_src_filter = ${T_Beam_S3_Supreme_SX1262.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>

variants/lilygo_tlora_v2_1/platformio.ini

@@ -132,6 +132,7 @@ extends = LilyGo_TLora_V2_1_1_6
 build_flags =
   ${LilyGo_TLora_V2_1_1_6.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=160
   -D MAX_GROUP_CHANNELS=8
   -D WIFI_SSID='"ssid"'
@@ -140,6 +141,7 @@ build_flags =
   -D OFFLINE_QUEUE_SIZE=128
 build_src_filter = ${LilyGo_TLora_V2_1_1_6.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>

variants/meshnology_w12/platformio.ini

@@ -171,6 +171,7 @@ extends = meshnology_w12
 build_flags =
   ${meshnology_w12.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -184,6 +185,7 @@ build_src_filter = ${meshnology_w12.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/nibble_screen_connect/platformio.ini

@@ -143,6 +143,7 @@ extends = nibble_screen_connect_base
 build_flags =
   ${nibble_screen_connect_base.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D DISPLAY_CLASS=SSD1306Display
   -D MAX_CONTACTS=300
   -D MAX_GROUP_CHANNELS=8
@@ -154,6 +155,7 @@ build_src_filter = ${nibble_screen_connect_base.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/nibble_zero_connect/platformio.ini

@@ -140,6 +140,7 @@ extends = nibble_zero_connect_base
 build_flags =
   ${nibble_zero_connect_base.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D DISPLAY_CLASS=SSD1306Display
   -D MAX_CONTACTS=300
   -D MAX_GROUP_CHANNELS=8
@@ -150,6 +151,7 @@ build_src_filter = ${nibble_zero_connect_base.build_src_filter}
   +<helpers/ui/SSD1306Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/rak3112/platformio.ini

@@ -172,6 +172,7 @@ extends = rak3112
 build_flags =
   ${rak3112.build_flags}
   -I examples/companion_radio/ui-orig
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D WIFI_DEBUG_LOGGING=1
@@ -182,6 +183,7 @@ build_flags =
 ;  -D MESH_DEBUG=1
 build_src_filter = ${rak3112.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-orig/*.cpp>
 lib_deps =

variants/rpi_picow/platformio.ini

@@ -67,34 +67,60 @@ lib_deps = ${rpi_picow.lib_deps}
   densaugeo/base64 @ ~1.4.0
 lib_ignore = BLE
 
-; [env:PicoW_companion_radio_ble]
-; extends = rpi_picow
-; build_flags = ${rpi_picow.build_flags}
-;   -D MAX_CONTACTS=100
-;   -D MAX_GROUP_CHANNELS=8
-;   -D BLE_PIN_CODE=123456
-;   -D BLE_DEBUG_LOGGING=1
-; ;  -D MESH_PACKET_LOGGING=1
-; ;  -D MESH_DEBUG=1
-; build_src_filter = ${rpi_picow.build_src_filter}
-;   +<../examples/companion_radio/*.cpp>
-; lib_deps = ${rpi_picow.lib_deps}
-;   densaugeo/base64 @ ~1.4.0
+[env:PicoW_companion_radio_ble]
+extends = rpi_picow
+build_flags = ${rpi_picow.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+  -D PIO_FRAMEWORK_ARDUINO_ENABLE_BLUETOOTH
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${rpi_picow.build_src_filter}
+  +<helpers/rp2040/SerialBLEInterface.cpp>
+  +<../examples/companion_radio/*.cpp>
+lib_deps = ${rpi_picow.lib_deps}
+  densaugeo/base64 @ ~1.4.0
 
-; [env:PicoW_companion_radio_wifi]
-; extends = rpi_picow
-; build_flags = ${rpi_picow.build_flags}
-;   -D MAX_CONTACTS=100
-;   -D MAX_GROUP_CHANNELS=8
-;   -D WIFI_DEBUG_LOGGING=1
-;   -D WIFI_SSID='"myssid"'
-;   -D WIFI_PWD='"mypwd"'
-; ;  -D MESH_PACKET_LOGGING=1
-; ;  -D MESH_DEBUG=1
-; build_src_filter = ${rpi_picow.build_src_filter}
-;   +<../examples/companion_radio/*.cpp>
-; lib_deps = ${rpi_picow.lib_deps}
-;   densaugeo/base64 @ ~1.4.0
+; USB + WiFi + BLE together; the interface manager fans frames out to all of them
+[env:PicoW_companion_radio]
+extends = rpi_picow
+build_flags = ${rpi_picow.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+  -D ENABLE_USB_INTERFACE
+  -D ENABLE_WIFI_INTERFACE
+  -D PIO_FRAMEWORK_ARDUINO_ENABLE_BLUETOOTH
+  -D BLE_PIN_CODE=123456
+; NOTE: DO NOT ENABLE -->  -D BLE_DEBUG_LOGGING=1   (shares Serial with the USB interface)
+; NOTE: DO NOT ENABLE -->  -D WIFI_DEBUG_LOGGING=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${rpi_picow.build_src_filter}
+  +<helpers/rp2040/SerialBLEInterface.cpp>
+  +<helpers/wifi/*.cpp>
+  +<../examples/companion_radio/*.cpp>
+lib_deps = ${rpi_picow.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:PicoW_companion_radio_wifi]
+extends = rpi_picow
+build_flags = ${rpi_picow.build_flags}
+  -D ENABLE_WIFI_INTERFACE
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=8
+  -D WIFI_DEBUG_LOGGING=1
+  -D WIFI_SSID='""'   ; no default network, configure with 'set wifi.ssid' / 'set wifi.pwd'
+  -D WIFI_PWD='""'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${rpi_picow.build_src_filter}
+  +<helpers/wifi/*.cpp>
+  +<../examples/companion_radio/*.cpp>
+lib_deps = ${rpi_picow.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+lib_ignore = BLE
 
 [env:PicoW_terminal_chat]
 extends = rpi_picow

variants/station_g2/platformio.ini

@@ -224,6 +224,7 @@ extends = Station_G2
 build_flags =
   ${Station_G2.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D WIFI_DEBUG_LOGGING=1
@@ -234,6 +235,7 @@ build_flags =
 ; -D MESH_DEBUG=1
 build_src_filter = ${Station_G2.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/station_g3_esp32/platformio.ini

@@ -139,6 +139,7 @@ extends = Station_G3_ESP32
 build_flags =
   ${Station_G3_ESP32.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D WIFI_DEBUG_LOGGING=1
@@ -149,6 +150,7 @@ build_flags =
 ; -D MESH_DEBUG=1
 build_src_filter = ${Station_G3_ESP32.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =

variants/thinknode_m2/platformio.ini

@@ -176,6 +176,7 @@ extends = ThinkNode_M2
 build_flags =
   ${ThinkNode_M2.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -184,6 +185,7 @@ build_flags =
   -D WIFI_PWD='"mypwd"'
 build_src_filter = ${ThinkNode_M2.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/ui/buzzer.cpp>
   +<../examples/companion_radio/*.cpp>

variants/thinknode_m5/platformio.ini

@@ -190,6 +190,7 @@ extends = ThinkNode_M5
 build_flags =
   ${ThinkNode_M5.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
@@ -198,6 +199,7 @@ build_flags =
   -D WIFI_PWD='"mypwd"'
 build_src_filter = ${ThinkNode_M5.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>

variants/thinknode_m7/platformio.ini

@@ -135,6 +135,7 @@ extends = ThinkNode_M7
 build_flags =
   ${ThinkNode_M7.build_flags}
   -I examples/companion_radio/ui-orig
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=NullDisplayDriver
@@ -145,6 +146,7 @@ build_flags =
 ;  -D MESH_PACKET_LOGGING=1
 build_src_filter = ${ThinkNode_M7.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/ui/NullDisplayDriver.cpp>
   +<../examples/companion_radio/*.cpp>

variants/thinknode_m9/platformio.ini

@@ -137,6 +137,7 @@ extends = ThinkNode_M9
 build_flags =
   ${ThinkNode_M9.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D WIFI_DEBUG_LOGGING=1
@@ -146,6 +147,7 @@ build_flags =
   ; -D MESH_PACKET_LOGGING=1
 build_src_filter = ${ThinkNode_M9.build_src_filter}
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/buzzer.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>

variants/xiao_c3/platformio.ini

@@ -115,8 +115,10 @@ extends = Xiao_esp32_C3
 build_src_filter = ${Xiao_esp32_C3.build_src_filter}
   +<../examples/companion_radio/*.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
 build_flags =
   ${Xiao_esp32_C3.build_flags}
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256

variants/xiao_s3_wio/platformio.ini

@@ -202,11 +202,13 @@ extends = Xiao_S3_WIO
 build_src_filter = ${Xiao_S3_WIO.build_src_filter}
   +<helpers/ui/NullDisplayDriver.cpp>
   +<helpers/esp32/*.cpp>
+  +<helpers/wifi/*.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../examples/companion_radio/*.cpp>
 build_flags =
   ${Xiao_S3_WIO.build_flags}
   -I examples/companion_radio/ui-new
+  -D ENABLE_WIFI_INTERFACE
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256