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    Timer Camera X with RTC

    Arduino
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    • A
      akita11
      last edited by

      I'm trying to use Timer Camera X with RTC wakeup.
      By enabling RTC by TimerCAM.begin(true), it resuls in camera initialization error. This problem is also reported on GitHub's issue.
      By reading library source codes, this seems to be caused by I2C driver, where camera uses I2C as SCCB, while RTC also uses I2C.

      Any advises?

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      • F
        flypeek
        last edited by flypeek

        I2C is a one-master, multiple-slave approach. That is, one master device can connect to multiple slave devices and select and read through different device addresses. Please refer to the i2c protocol for details.
        https://learn.adafruit.com/scanning-i2c-addresses/arduino

        https://github.com/m5stack/TimerCam-arduino/tree/master/examples/wakeup

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        • A
          akita11
          last edited by

          On TimerCameraX, RTC and camera are connected to ESP32 using different I2C buses, this means ESP32 uses two different I2C master for RTC and camera.

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          • felmueF
            felmue
            last edited by

            Hello guys

            please see my comment here for a possible explanation and solution.

            Thanks
            Felix

            GPIO translation table M5Stack / M5Core2
            Information about various M5Stack products.
            Code examples

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