Running BLE-Scanner in Platformio

[heinpuett]

hi there,
i have a problem compiling the sourcecode in platformio.
i think the issue is, that i cannot find the right the right libs.
im using a esp-cam module without cam. espressif-32s.
is there anybodey out there to solve my problem. i spend many hours yet, but i cannot compile it an get it running.
best regards ralf

[gromeck]

Hi Ralf, a few more details would help?
What output does your compiler produce? What error messages are shown?

[heinpuett]

hi christian,
sorry for beeing absent for so long, i were on a camper without internet...

here is the platformio.ini:
;-------------------------------------------------------------------------------------------------------------------
; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32dev]
platform = espressif32
board = esp32cam
framework = arduino
lib_deps =
bblanchon/ArduinoJson@^7.0.4
h2zero/NimBLE-Arduino@^1.3.1
knolleary/PubSubClient@^2.8
paulstoffregen/Time@^1.6.1
;-------------------------------------------------------------------------------------------------------------------

and her is what the compiler says:

;-------------------------------------------------------------------------------------------------------------------
Processing esp32dev (platform: espressif32; board: esp32cam; framework: arduino)

Verbose mode can be enabled via -v, --verbose option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32cam.html
PLATFORM: Espressif 32 (6.1.0) > AI Thinker ESP32-CAM
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES:

• framework-arduinoespressif32 @ 3.20007.0 (2.0.7)
• tool-esptoolpy @ 1.40500.0 (4.5.0)
• toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
  Converting BLE-Scanner.ino
  LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
  LDF Modes: Finder ~ chain, Compatibility ~ soft
  Found 38 compatible libraries
  Scanning dependencies...
  Dependency Graph
  |-- ArduinoJson @ 7.0.4
  |-- NimBLE-Arduino @ 1.4.1
  |-- PubSubClient @ 2.8.0
  |-- Time @ 1.6.1
  |-- Update @ 2.0.0
  |-- WebServer @ 2.0.0
  |-- DNSServer @ 2.0.0
  |-- WiFi @ 2.0.0
  Building in release mode
  Compiling .pio\build\esp32dev\src\BLE-Scanner.ino.cpp.o
  Compiling .pio\build\esp32dev\src\ble-manufacturer.cpp.o
  Compiling .pio\build\esp32dev\src\bluetooth.cpp.o
  Compiling .pio\build\esp32dev\src\config.cpp.o
  Compiling .pio\build\esp32dev\src\eeprom.cpp.o
  Compiling .pio\build\esp32dev\src\http.cpp.o
  Compiling .pio\build\esp32dev\src\led.cpp.o
  Compiling .pio\build\esp32dev\src\mqtt.cpp.o
  src/eeprom.cpp: In function 'void EepromInit(int)':
  src/eeprom.cpp:36:3: error: 'EEPROM' was not declared in this scope
  EEPROM.begin(_eeprom_size);
  ^~~~~~
  src/eeprom.cpp:36:3: note: suggested alternative: 'EIDRM'
  EEPROM.begin(_eeprom_size);
  ^~~~~~
  EIDRM
  src/eeprom.cpp: In function 'void EepromClear()':
  src/eeprom.cpp:65:5: error: 'EEPROM' was not declared in this scope
  EEPROM.write(n, 0xff);
  ^~~~~~
  src/eeprom.cpp:65:5: note: suggested alternative: 'EIDRM'
  EEPROM.write(n, 0xff);
  ^~~~~~
  EIDRM
  src/eeprom.cpp:66:3: error: 'EEPROM' was not declared in this scope
  EEPROM.commit();
  ^~~~~~
  src/eeprom.cpp:66:3: note: suggested alternative: 'EIDRM'
  EEPROM.commit();
  ^~~~~~
  EIDRM
  src/eeprom.cpp: In function 'int EepromRead(int, int, void*)':
  src/eeprom.cpp:80:9: error: 'EEPROM' was not declared in this scope
  if (EEPROM.read(addr + n) != 0xff)
  ^~~~~~
  src/eeprom.cpp:80:9: note: suggested alternative: 'EIDRM'
  if (EEPROM.read(addr + n) != 0xff)
  ^~~~~~
  EIDRM
  src/eeprom.cpp:87:28: error: 'EEPROM' was not declared in this scope
  ((byte *) buffer)[n] = EEPROM.read(addr + n);
  ^~~~~~
  src/eeprom.cpp:87:28: note: suggested alternative: 'EIDRM'
  ((byte ) buffer)[n] = EEPROM.read(addr + n);
  ^~~~~~
  EIDRM
  src/eeprom.cpp: In function 'void EepromWrite(int, int, const void)':
  src/eeprom.cpp:102:5: error: 'EEPROM' was not declared in this scope
  EEPROM.write(addr + n, ((byte *) buffer)[n]);
  ^~~~~~
  src/eeprom.cpp:102:5: note: suggested alternative: 'EIDRM'
  EEPROM.write(addr + n, ((byte *) buffer)[n]);
  ^~~~~~
  EIDRM
  src/eeprom.cpp:107:3: error: 'EEPROM' was not declared in this scope
  EEPROM.commit();
  ^~~~~~
  src/eeprom.cpp:107:3: note: suggested alternative: 'EIDRM'
  EEPROM.commit();
  ^~~~~~
  EIDRM
  *** [.pio\build\esp32dev\src\eeprom.cpp.o] Error 1
  In file included from src/http.cpp:26:
  C:/Users/Dell Latitude E7470/.platformio/packages/framework-arduinoespressif32/libraries/WebServer/src/WebServer.h:177:3: error: 'WiFiServer' does not name a type; did you mean 'WebServer'?
  WiFiServer _server;
  ^~~~~~~~~~
  WebServer
  *** [.pio\build\esp32dev\src\http.cpp.o] Error 1
  ==================================================== [FAILED] Took 20.14 seconds ====================================================

• The terminal process "C:\Users\Dell Latitude E7470.platformio\penv\Scripts\platformio.exe 'run'" terminated with exit code: 1.
• Terminal will be reused by tasks, press any key to close it.

;-------------------------------------------------------------------------------------------------------------------

do you have an idea what might be the problem?

best regards ralf

[gromeck]

Sorry for the late reply.

I have no experience with plaffromio, but did you install the esp32 package?
EEPROM is part of this package -- at least in the Arduion IDE context.

[wprinz]

Hi @heinpuett - I ran into similar problems, but in the meantime I was able to compile the code on PlatformIO. Here is the workaround:

• platformio requires that all "project specific (private) libraries" are located in the lib folder. Thus you need to create for each local lib a subfolder in /lib with the same name as the lib, and then you need to move the .h and .cpp files into that folder, e.g. /util/util.h and /util/util.ccp
• the case insensitivity on windows causes problems with the local eeprom.h and wifi.h files, as they conflict with EEPROM and WiFi. After renaming these to my_eeprom and my_wifi the compile errors you mention above disappear.
• Finally platformio seems to include not the standard arduino libs for esp_task_wdt.h. but instead some espressif libs. In these libs esp_task_wdt_init is no longer defined and other API changes have been made. Thus you need to change the following code in watchdog.cpp:

old:

 esp_task_wdt_config_t config;

  config.timeout_ms = timeout * 1000;
  config.idle_core_mask = 1 << 0;
  config.trigger_panic = true;
 

  if ((rc = esp_task_wdt_init(&config)) == ESP_ERR_INVALID_STATE) {
    LogMsg("WATCHDOG: already configured -- trying reconfiguration");
    rc = esp_task_wdt_reconfigure(&config);
  }
  if (rc != ESP_OK) {
    LogMsg("WATCHDOG: configuration of watchdog failed -- restarting");
    ESP.restart();
  }

new:

   if ((rc = esp_task_wdt_init(timeout * 1000, true)) == ESP_OK) {
    LogMsg("WATCHDOG: configuration OK");

  } else
{
    LogMsg("WATCHDOG: configuration of watchdog failed -- restarting");
    ESP.restart();
  }

After these modifications the code compiled with the following platformio.ini file:

[env:esp32doit-devkit-v1]
platform = espressif32
board = esp32doit-devkit-v1   ; replace with our specific board
framework = arduino

lib_ldf_mode = chain+  ; required otherwise the following error occurs: fatal error: TimeLib.h: No such file or directory 

lib_deps = 
	PubSubClient@^2.8
	NimBLE-Arduino@^1.4.0
	Time@^1.6.1

monitor_speed = 115200

I hope this helps!