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    Activity › Forums › Questions & Troubleshooting › Hardware › Problem with SDA and SLA pins for I2C LCD Screen › Reply To: Problem with SDA and SLA pins for I2C LCD Screen

    • Lukas

      Member
      February 16, 2021 at 1:58 pm

      Hello Antonio,

      I assume that Marco means to configure the pins 20 and 21 as digital outputs and try to trigger them to LOW and HIGH and measure the output voltage.

      In addition – may I ask you to share the I2C detector sketch you use?

      Thanks,

      Lukas

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