For a simplified method, see lib-builder
Download and install esp-idf
Create blank idf project (from one of the examples)
in the project folder, create a folder called components and clone this repository inside
mkdir -p components && \
cd components && \
git clone https://github.com/espressif/arduino-esp32.git arduino && \
cd arduino && \
git submodule update --init --recursive && \
cd ../.. && \
make menuconfig
make menuconfig
has some Arduino options
If you enable this options, your main.cpp should be formated like any other sketch
//file: main.cpp
#include "Arduino.h"
void setup(){
Serial.begin(115200);
}
void loop(){
Serial.println("loop");
delay(1000);
}
Else you need to implement app_main()
and call initArduino();
in it.
Keep in mind that setup() and loop() will not be called in this case. If you plan to base your code on examples provided in esp-idf, please make sure move the app_main() function in main.cpp from the files in the example.
//file: main.cpp
#include "Arduino.h"
extern "C" void app_main()
{
initArduino();
pinMode(4, OUTPUT);
digitalWrite(4, HIGH);
//do your own thing
}
make flash monitor
will build, upload and open serial monitor to your board
If you are writing code that does not require Arduino to compile and you want your ESP_LOGx
macros to work in Arduino IDE, you can enable the compatibility by adding the following lines after your includes:
#ifdef ARDUINO_ARCH_ESP32
#include "esp32-hal-log.h"
#endif
As commits are made to esp-idf and submodules, the codebases can develop incompatibilities which cause compilation errors. If you have problems compiling, follow the instructions in Issue #1142 to roll esp-idf back to a known good version.
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