Firmware:

NOTE: keep comments on top of the code, removal seems to lead to

#[instability::unstable]
     |     ------------------------ private method defined here

• clone esp-hal
• replace embassy_hello_world.rs example with main.rs

•   cargo xtask run-example esp-hal esp32c3 embassy_hello_world

Hardware:

• esp32c3
• IR photoresistor

Wiring:

• IR+ -> esp pin4/5
• IR- -> esp gnd

Values:

ADC IR values go about that:

• bigger IR:

  • ~1700 on the table
  • ~1770 nicely covered with hand
  • ~2160 when the IR is missing (not wired)
  • ~1660 with phone lighter level 5 touching IR

• smaller IR:

  • ~1960 on the table
  • slowly goes up to 3500 nicely covered with hand
  • ~2160 when the IR is missing (not wired)
  • ~1660 with phone lighter level 5 touching IR