5 Replies Latest reply on Jan 20, 2020 9:53 PM by SuCh_2227511

    Input pin configuration

    SuCh_2227511

      I want to detect 3.5mm jack for serial communication as below.

      T (tip) and R (ring) are used for UART. R is the reference voltage for UART, which is connected to Vdd. T is data line.

      Also Pin_UART is connected to Ring switch to detect the jack insertion. My idea is the pin becomes HIGH when jack is not but LOW with the jack.

      As I implement this function in CYBLE 022001-00, the idea is not working. The pin shows always HIGH.

      I am wondering my pin configuration is right for this case.

      I attached simple code as a model. Please advice. thanks.

      Jack detection.png