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OBK PWMFrequency Command Issue on Pin 17, Frequency Stuck at 2kHz

omelchuk890 150 0
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  • #1 21688382
    omelchuk890
    Level 11  
    I needed to make WiFi control for a room heater.
    For this, I decided to use a ready-made WiFi relay module from Aliexpress, having slightly modified it.
    I planned to add a 18b20 sensor, and an output to a solid-state relay in slow PWM mode, 5-10s(0.2-0.1Hz).
    Let's leave the script out of the equation for now, and run into the main thing - the PWMFrequency command does not work at all - no matter what argument I set, 50, 100, 0.5, the PWM pin frequency remains 1.99998 kHz
    The duty cycle is adjusted by a slider via the web

    Maybe I'm doing something wrong?
    What is the range of PWM frequency adjustment?
    You can probably make a loop in the script and use variable delays to switch the pin, but this is somehow not Feng Shui :)
    Chipset: BL602
    pin 17 - PWM
    /autoexec.bat
    PWMFrequency 25
    If there are any difficulties, I will have to write everything again through the Arduino IDE on the ESP32C3 - but there will be no beautiful and convenient web...

    P.S. !!! The command works on the BK7231! But the minimum frequency is 1Hz...
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