Infrared LED not working on TWatch 2020 v3?

[peteh]

I was trying to run some examples for IR control. However it seems that the LED is not working or I'm doing something wrong. This is the most basic code I could come up with to test:

uint8_t m_pin;
bool m_on;
    void setup()
    {
       uint8_t pin TWATCH_2020_IR_PIN; // resolves to pin 13
       m_pin = 13;
       m_on = false;
       pinMode(m_pin, OUTPUT);
       digitalWrite(m_pin, m_on);
    }

    void loop()
    {
        m_on = !m_on;
        digitalWrite(m_pin, m_on);
        delay(2000);
    }

This code should make the led turn on and off every 2 seconds, so I should see it in my smartphone camera (This works for other infrared leds that I'm using).

Any ideas what I could do to further analyze if the led is broken or if I'm doing something wrong?

[m00nbyt3]

Same here, if I set this #define LILYGO_WATCH_2020_V1 the IR transmitter will work, but as my watch is V3 other functions arent working correctly...

[m00nbyt3]

Ive just found a solution, in the V3 theTFT BackLight is in theory in pin 15. Thats what is causing somehow mess. For solving the problem, Ive just edit the file Arduino\libraries\TTGO_TWatch_Library-master\src\board\twatch2020_v3.h, and modified the line "#define TWATCH_TFT_BL (GPIO_NUM_15)" to "#define TWATCH_TFT_BL (GPIO_NUM_12)" I thought that will break the backlight, but it is rearely also working, and now the IR Led also works :))

[peteh]

Sorry, I forgot to actually reply here. The code was good but the led was indeed broken. I ordered a second watch after customer support was sending me back and forth for trying stuff. Second one worked and I asked them to replace the first one.