i2c
Hi, how are you? Im having trouble trying to communicate an external sensor with the audiomoth using i2c protocol. I dont know what pins to use as SDA and SCL, and how to use them. Also, I cannot find the part in the code where you connect the sda to the particular output pin. Do you have any example or something as a guide? Besides the Alternative firmware and applications that are in this page. Thank you! I leave my mail just in case lucasdiazmiguez@gmail.com
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The AM Dev is identical to AM 1.2 and has no I2C support.
The application note from Silicon Labs describes the use of the GPIO on the EFM32 microcontroller. If you compare to the audiomoth.c library code, you'll see that we use the same EMLib calls to control the microcontroller pins. https://www.silabs.com/documents/public/application-notes/an0012-efm32-gpio.pdf