gpio interrupt

  1. A

    EL817S Optocoupler Output: Multiple HIGH/LOW Transitions and Recommended Hardware Debouncing

    I am using an EL817S optocoupler to interface a 12 V push-button signal to an ESP32 GPIO. After pressing the button once, the ESP32 GPIO sometimes detects multiple HIGH/LOW transitions. The GPIO is configured with GPIO_INTR_ANYEDGE, so each transition can generate an event. The signal path is...
  2. delini

    GPIO Interrupt in ESP32-C3 controller baremetal

    Hi, I'm new to microcontrollers and try learning ESP32-C3 which has RV32I core by myself. I wanna to code baremetal ESP32-C3 instead of using ESP-IDF library and face some error with GPIO interrupt part I read the instruction in technical manual then try to do this lab to practice: mapping...
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