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Check temperature on 16 sensors with different addresses and show values by USART.

USART speed 115200. Code for NUCLEO-042

Serial interface commands (ends with '\n'):

  • C show coefficients for both thermosensors
  • D detect seosors (reseting them)
  • H switch I2C to high speed (100kHz)
  • L switch I2C to low speed (default, 10kHz)
  • R reset both sensors
  • T get temperature
  • number from 0 to 48 - set active multiplexer channel (PA3..PA8)

PINOUT

  • Multiplexer: PA3..PA8 (bits0..5)
  • I2C: PA9 (SCL) & PA10 (SDA)
  • USART2: PA2 (Tx) & PA15 (Rx)