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The O² board lacks an extra analog input, which is quite useful for interfacing with sensors.

Luiz Fernando Lavado Villa requested to merge lflavado/tutorials:PR_new_meas_2 into main

This commit implements support for this function.

Implementation:

This was actually much more challenging than it should be.

Board changes -

  • It was necessary to add support for the new pin on the owntech_board.dts
  • It was necessary to add support for the new adc-channel on the adc-channel.dtsi

Data Acquisition module changes -

  • DataAcquisition.cpp and .h required changes to support high-level API access to the new channel for reading and parameters update
  • data_conversion.c and .h required changes to support the conversion of the new adc channel

Hardware Configuration changes -

  • HardwareConfiguration.cpp and .h required changes to launch the new channel initialization that includes the extra measurement
  • adc_configuration.c and .h required changes to configure the new channel properly and describe it via a dedicated structure

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