Add ESP8285 ELRS receiver as board

boards/esp8285-8285.json

@@ -0,0 +1,34 @@
+{
+    "comment": "From ExpressLRS project, https://github.com/ExpressLRS/ExpressLRS/blob/master/src/boards/esp8285-8285.json: esp8285 variant for ExpressLRS that uses variant=esp8285 instead of variant=generic",
+    "build": {
+      "arduino": {
+        "ldscript": "eagle.flash.1m256.ld"
+      },
+      "core": "esp8266",
+      "extra_flags": "-DESP8266 -DESP8285 -DARDUINO_ARCH_ESP8266 -DARDUINO_ESP8266_ESP01",
+      "f_cpu": "80000000L",
+      "f_flash": "40000000L",
+      "flash_mode": "dout",
+      "mcu": "esp8266",
+      "variant": "esp8285"
+    },
+    "connectivity": [
+      "wifi"
+    ],
+    "frameworks": [
+      "arduino",
+      "espidf",
+      "esp8266-rtos-sdk",
+      "esp8266-nonos-sdk"
+    ],
+    "name": "Generic ESP8285 Module",
+    "upload": {
+      "maximum_ram_size": 81920,
+      "maximum_size": 1048576,
+      "require_upload_port": true,
+      "resetmethod": "ck",
+      "speed": 115200
+    },
+    "url": "http://www.esp8266.com/wiki/doku.php?id=esp8266-module-family",
+    "vendor": "Espressif"
+  }

examples/companion_radio/main.cpp

@@ -5,6 +5,8 @@
   #include <InternalFileSystem.h>
 #elif defined(ESP32)
   #include <SPIFFS.h>
+#elif defined(ESP8285) || defined(ESP866)
+  #include <FS.h>
 #endif
 
 #define RADIOLIB_STATIC_ONLY 1
@@ -92,6 +94,10 @@
   #include <helpers/nrf52/TechoBoard.h>
   #include <helpers/CustomSX1262Wrapper.h>
   static TechoBoard board;
+#elif defined(ESP8285)
+  #include <helpers/ESP8285Board.h>
+  #include <helpers/CustomSX1276Wrapper.h>
+  static ESP8285Board board;
 #else
   #error "need to provide a 'board' object"
 #endif
@@ -244,7 +250,12 @@ class MyMesh : public BaseChatMesh {
 
   void loadContacts() {
     if (_fs->exists("/contacts3")) {
-      File file = _fs->open("/contacts3");
+
+      #if defined(ESP8285)
+        File file = _fs->open("/contacts3", "r");
+      #else
+        File file = _fs->open("/contacts3");
+      #endif
       if (file) {
         bool full = false;
         while (!full) {
@@ -280,7 +291,11 @@ class MyMesh : public BaseChatMesh {
     File file = _fs->open("/contacts3", FILE_O_WRITE);
     if (file) { file.seek(0); file.truncate(); }
 #else
+  #if defined(ESP8285)
+    File file = _fs->open("/contacts3", "w");
+  #else
     File file = _fs->open("/contacts3", "w", true);
+  #endif
 #endif
     if (file) {
       ContactsIterator iter;
@@ -316,7 +331,11 @@ class MyMesh : public BaseChatMesh {
     sprintf(path, "/bl/%s", fname);
 
     if (_fs->exists(path)) {
-      File f = _fs->open(path);
+      #if defined(ESP8285)
+        File f = _fs->open(path, "r");
+      #else
+        File f = _fs->open(path);
+      #endif
       if (f) {
         int len = f.read(dest_buf, 255);  // currently MAX 255 byte blob len supported!!
         f.close();
@@ -337,8 +356,12 @@ class MyMesh : public BaseChatMesh {
   #if defined(NRF52_PLATFORM)
     File f = _fs->open(path, FILE_O_WRITE);
     if (f) { f.seek(0); f.truncate(); }
+  #else
+    #if defined(ESP8285)
+    File f = _fs->open(path, "w");
   #else
     File f = _fs->open(path, "w", true);
+  #endif
   #endif
     if (f) {
       int n = f.write(src_buf, len);
@@ -657,7 +680,11 @@ class MyMesh : public BaseChatMesh {
 
     // load persisted prefs
     if (_fs->exists("/node_prefs")) {
-      File file = _fs->open("/node_prefs");
+      #if defined(ESP8285)
+        File file = _fs->open("/node_prefs", "r");
+      #else
+        File file = _fs->open("/node_prefs");
+      #endif
       if (file) {
         uint8_t pad[8];
 
@@ -731,7 +758,11 @@ class MyMesh : public BaseChatMesh {
     File file = _fs->open("/node_prefs", FILE_O_WRITE);
     if (file) { file.seek(0); file.truncate(); }
 #else
+  #if defined(ESP8285)
+    File file = _fs->open("/node_prefs", "w");
+  #else
     File file = _fs->open("/node_prefs", "w", true);
+  #endif
 #endif
     if (file) {
       uint8_t pad[8];
@@ -1211,6 +1242,17 @@ class MyMesh : public BaseChatMesh {
     #include <helpers/ArduinoSerialInterface.h>
     ArduinoSerialInterface serial_interface;
   #endif
+#elif defined(ESP8285)
+  #ifdef WIFI_SSID
+    #ifndef TCP_PORT
+      #define TCP_PORT 5000
+    #endif
+    #include <helpers/esp8285/SerialWifiInterface.h>
+    SerialWifiInterface serial_interface(TCP_PORT); // Pass TCP_PORT to the constructor
+  #else
+    #include <helpers/ArduinoSerialInterface.h>
+    ArduinoSerialInterface serial_interface;
+  #endif
 #elif defined(NRF52_PLATFORM)
   #ifdef BLE_PIN_CODE
     #include <helpers/nrf52/SerialBLEInterface.h>
@@ -1224,15 +1266,15 @@ class MyMesh : public BaseChatMesh {
 #endif
 
 #if defined(NRF52_PLATFORM)
-RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
-#elif defined(LILYGO_TLORA)
-SPIClass spi;
-RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_0, P_LORA_RESET, P_LORA_DIO_1, spi);
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
+#elif defined(LILYGO_TLORA) || defined(ESP8285)
+  SPIClass spi;
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_0, P_LORA_RESET, P_LORA_DIO_1, spi);
 #elif defined(P_LORA_SCLK)
-SPIClass spi;
-RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
+  SPIClass spi;
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
 #else
-RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
+  RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
 #endif
 StdRNG fast_rng;
 SimpleMeshTables tables;
@@ -1245,6 +1287,7 @@ void halt() {
 void setup() {
   Serial.begin(115200);
 
+
   board.begin();
 #ifdef SX126X_DIO3_TCXO_VOLTAGE
   float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
@@ -1255,6 +1298,8 @@ void setup() {
 #if defined(NRF52_PLATFORM)
   SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
   SPI.begin();
+#elif defined(ESP8285)
+  spi.begin();
 #elif defined(P_LORA_SCLK)
   spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
 #endif
@@ -1304,6 +1349,11 @@ void setup() {
   SPIFFS.begin(true);
   the_mesh.begin(SPIFFS, trng);
 
+#elif defined(ESP8285)
+  SPIFFS.begin();
+  the_mesh.begin(SPIFFS, trng);
+
+
 #ifdef WIFI_SSID
   WiFi.begin(WIFI_SSID, WIFI_PWD);
   serial_interface.begin(TCP_PORT);

examples/simple_repeater/main.cpp

@@ -5,6 +5,8 @@
   #include <InternalFileSystem.h>
 #elif defined(ESP32)
   #include <SPIFFS.h>
+#elif defined(ESP8285) || defined(ESP866)
+  #include <FS.h>
 #endif
 
 #define RADIOLIB_STATIC_ONLY 1
@@ -96,6 +98,10 @@
   #include <helpers/nrf52/TechoBoard.h>
   #include <helpers/CustomSX1262Wrapper.h>
   static TechoBoard board;
+#elif defined(ESP8285)
+  #include <helpers/ESP8285Board.h>
+  #include <helpers/CustomSX1276Wrapper.h>
+  static ESP8285Board board;
 #else
   #error "need to provide a 'board' object"
 #endif
@@ -224,6 +230,8 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
   File openAppend(const char* fname) {
   #if defined(NRF52_PLATFORM)
     return _fs->open(fname, FILE_O_WRITE);
+  #elif defined(ESP8285)
+    return _fs->open(fname, "a");
   #else
     return _fs->open(fname, "a", true);
   #endif
@@ -566,7 +574,7 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
   bool formatFileSystem() override {
 #if defined(NRF52_PLATFORM)
     return InternalFS.format();
-#elif defined(ESP32)
+#elif defined(ESP32) || defined(ESP8285)
     return SPIFFS.format();
 #else
   #error "need to implement file system erase"
@@ -598,7 +606,11 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
   }
 
   void dumpLogFile() override {
-    File f = _fs->open(PACKET_LOG_FILE);
+    #if defined(ESP8285)
+      File f = _fs->open(PACKET_LOG_FILE, "r");
+    #else
+      File f = _fs->open(PACKET_LOG_FILE);
+    #endif
     if (f) {
       while (f.available()) {
         int c = f.read();
@@ -632,7 +644,7 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
 
 #if defined(NRF52_PLATFORM)
 RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
-#elif defined(LILYGO_TLORA)
+#elif defined(LILYGO_TLORA) || defined(ESP8285)
 SPIClass spi;
 RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_0, P_LORA_RESET, P_LORA_DIO_1, spi);
 #elif defined(P_LORA_SCLK)
@@ -678,6 +690,8 @@ void setup() {
 #if defined(NRF52_PLATFORM)
   SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
   SPI.begin();
+#elif defined(ESP8285)
+  spi.begin();
 #elif defined(P_LORA_SCLK)
   spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
 #endif
@@ -712,6 +726,10 @@ void setup() {
   SPIFFS.begin(true);
   fs = &SPIFFS;
   IdentityStore store(SPIFFS, "/identity");
+#elif defined(ESP8285)
+  SPIFFS.begin();
+  fs = &SPIFFS;
+  IdentityStore store(SPIFFS, "/identity");
 #else
   #error "need to define filesystem"
 #endif

examples/simple_secure_chat/main.cpp

@@ -3,8 +3,10 @@
 
 #if defined(NRF52_PLATFORM)
   #include <InternalFileSystem.h>
-#elif defined(ESP32)
+#elif defined(ESP32) 
   #include <SPIFFS.h>
+#elif defined(ESP8285) || defined(ESP866)
+  #include <FS.h>
 #endif
 
 #define RADIOLIB_STATIC_ONLY 1

platformio.ini

@@ -948,3 +948,67 @@ build_src_filter = ${LilyGo_Techo.build_src_filter}
 lib_deps =
   ${LilyGo_Techo.lib_deps}
   densaugeo/base64 @ ~1.4.0
+
+
+; ----------------- ELRS ESP8285---------------------
+
+[esp82xx_base]
+platform = espressif8266
+extends = arduino_base
+board = esp8285-8285
+build_flags =
+    ${arduino_base.build_flags}
+    -D ESP8285
+    -D PLATFORM_ESP8266=1
+build_src_filter = ${arduino_base.build_src_filter}
+monitor_filters = esp8266_exception_decoder
+upload_resetmethod = nodemcu
+
+; -- pin defs from https://github.com/ExpressLRS/targets/blob/master/RX/Generic%20900.json
+[ELRS_ESP8285_RX]
+extends = esp82xx_base
+build_flags =
+    ${esp82xx_base.build_flags}
+    -D RADIO_CLASS=CustomSX1276 
+    -D WRAPPER_CLASS=CustomSX1276Wrapper 
+    -D LORA_TX_POWER=20 
+    -D SERIAL_INTERFACE=Serial 
+    -D P_LORA_DIO_0=4
+    -D P_LORA_DIO_1=5
+    -D P_LORA_NSS=15
+    -D P_LORA_RESET=2
+    -D P_LORA_SCLK=14
+    -D P_LORA_MISO=12
+    -D P_LORA_MOSI=13
+    -D PIN_RX=3
+    -D PIN_TX=1
+    -D PIN_LED_BUILTIN=16
+build_src_filter = ${esp82xx_base.build_src_filter}
+
+[env:ELRS_ESP8285_RX_companion_radio_usb]
+extends = ELRS_ESP8285_RX
+build_flags =
+    ${ELRS_ESP8285_RX.build_flags}
+    -D MAX_CONTACTS=25 ; crash = 50, 40, 
+    -D MAX_GROUP_CHANNELS=1 
+build_src_filter =
+    ${ELRS_ESP8285_RX.build_src_filter}
+    +<src/helpers/*.cpp> 
+    +<../examples/companion_radio/main.cpp>
+lib_deps =
+    ${arduino_base.lib_deps}
+    densaugeo/base64 @ ~1.4.0 
+
+[env:ELRS_ESP8285_RX_repeater]
+extends = ELRS_ESP8285_RX
+build_flags =
+  ${ELRS_ESP8285_RX.build_flags}
+  -D ADVERT_NAME="\"ELRSRX Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = 
+  ${ELRS_ESP8285_RX.build_src_filter} 
+  +<../examples/simple_repeater/main.cpp>

src/helpers/CommonCLI.cpp

@@ -15,7 +15,11 @@ static uint32_t _atoi(const char* sp) {
 
 void CommonCLI::loadPrefs(FILESYSTEM* fs) {
   if (fs->exists("/node_prefs")) {
-    File file = fs->open("/node_prefs");
+    #if defined(ESP8285)
+      File file = fs->open("/node_prefs", "r");
+    #else
+      File file = fs->open("/node_prefs");
+    #endif
     if (file) {
       uint8_t pad[8];
 
@@ -63,7 +67,11 @@ void CommonCLI::savePrefs(FILESYSTEM* fs) {
   File file = fs->open("/node_prefs", FILE_O_WRITE);
   if (file) { file.seek(0); file.truncate(); }
 #else
-  File file = fs->open("/node_prefs", "w", true);
+  #if defined(ESP8285)
+    File file = fs->open("/node_prefs", "w");
+  #else
+    File file = fs->open("/node_prefs", "w", true);
+  #endif
 #endif
   if (file) {
     uint8_t pad[8];