Full support for M5 stack Atom (Lite)

[3b0k]

I am following the recommendation on the GitHub page to switch from the M5Atom library to M5Unified, but I am now completely unable to control the RGB LED in any way.

It's frustrating because the new, recommended library doesn't even seem to include the most basic functions (like the LED controls) that the old one had.

When do you actually plan to fully support these devices in the 'new' library? It's very difficult to migrate if essential features are missing.

[drschlaumeier]

in addition, FastLED is not working anymore... there seems to be a conflict between both libraries. Maybe pin 27 is blocked by M5Unified ???

[drschlaumeier]

Found the problem with FastLED in "M5Unified.cpp". pin 27 is switched to input mode to detect M5AtomMatrix but never switched back to output. So, an easy "pinMode(GPIO_NUM_27, OUTPUT);" helps. Quite easy solution :-)

/*
  タッチセンサAPIが使えない場合の処理 (ESP-IDFのバージョンに依る)
  GPIOの立上り速度の差を用いて LiteとMatrix の識別を行う。
  (Matrixの方がinput_pullupでHIGHになるまでの時間が長いため、この性質を利用して判定する)
*/
              portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
              uint32_t g27 = 0;
              // 8回読み取って立上り速度の差を見る
              for (int i = 0; i < 8; ++i)
              {
                lgfx::pinMode(GPIO_NUM_27, lgfx::pin_mode_t::input_pulldown);
                delay(1);
                taskENTER_CRITICAL(&mux);
                lgfx::pinMode(GPIO_NUM_27, lgfx::pin_mode_t::input_pullup);
                g27 += lgfx::gpio_in(GPIO_NUM_27);
                taskEXIT_CRITICAL(&mux);
              }