Thermocouple Demo

Source: temperature_thermocouple_demo.ino
Prerequisites: MAX6675 module and max6675 library.
Shows: thermocouple readings, payload packing, transaction loop.

Code


MAX6675 thermocouple(THERMO_SCK_PIN, THERMO_CS_PIN, THERMO_SO_PIN);
 
float tempC = thermocouple.readCelsius();
int64_t tempX100 = (int64_t)(tempC * 100.0f);
 
Instruction ix;
ix.setProgram(programId);
ix.addKey(authorityPub, true, true);
ix.addKey(dataAccountPda, false, true);
ix.writeBytes(RECORD_DATA_DISCRIMINATOR, 8);
ix.writeI64LE(tempX100);