ESP8266 Community Forum

- Sun Aug 16, 2015 1:08 pm #26196

ARDUINO is for the IDE. For Atmel MCU, there are some flags like __AVR_ATmega8__, __AVR_ATmega328P__, __AVR_ATmega32U4__, __AVR_ATmega2560__ and so on, there are about 50 flavors. There are other flags for board types, such as AVR_UNO, AVR_NANO, AVR_MEGA2560 and so on ...

Thanks for your reply.

I checked the io.h file for __AVR_AT... defines and I saw >250+ defines.

As I use sketches that run on AtMega328 AVR's (UNO, Nano or Micro) or ESP I decided do use this:

Code: Select all  #if defined (__AVR_ATmega328P__)
    Serial.println();
    Serial.println(F("Now monitoring changes on Arduino INT0/D2"));
    intpin=0;
  #endif
  #if defined(ESP8266)
    Serial.println(F("Version compiled for ESP8266. Now monitoring changes on ESP8266 GPIO2"));
    intpin=2;
  #endif

Thanks for your help!

- Sun Aug 16, 2015 1:32 pm #26199 In the arduino-1.6.5, I've found a more generic one ARDUINO_ARCH_AVR (which wasn't there in arduino-1.6.1), mainly used in libraries/Ethernet/src/utility/w5100.h

I don't know which one is the best ...

- Mon Aug 31, 2015 11:33 am #27454 This is very helpful.

Is there a way to determine which ESP8266 board variant is being used eg NodeMCU or Sparkfun Thing or generic?

Roger

- Mon Aug 31, 2015 4:29 pm #27494 I've used __XTENSA__ which is the core architecture for the ESP8266. That said, this directive is probably better suited for stuff that's applicable to only the Xtensa core, but not necessarily the Arduino environment running on an Xtensa core.