Arduino: read high temperatures with a K-type thermocouple and MAX6675
Wire a K-type thermocouple and a MAX6675 to an Arduino and read oven, kiln, and solder-pot temperatures up to 1024 C. Includes the polarity trap.
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7 tutorials
ESP32: read high temperatures with a K-type thermocouple and MAX6675
Measure up to 600 C with a K-type thermocouple and MAX6675 amplifier on an ESP32. Wiring, the 220ms update gotcha, and when to upgrade to a MAX31855.
ESP32: read temperature with a $1 NTC thermistor (Steinhart-Hart done simply)
Turn a $1 NTC thermistor and a 10K resistor into an ESP32 temperature sensor: divider math, analogReadMilliVolts to dodge ADC nonlinearity, and the beta equation.
Pico: read the RP2040's built-in temperature sensor
Read the temperature sensor inside the RP2040 chip with MicroPython's ADC and the 27-degree conversion formula. Zero wiring, one ADC channel, and a warning about what the number actually means.
ESP32: read a BME280 temperature, humidity, and pressure sensor
Wire a BME280 to an ESP32 over I2C and stream temperature, humidity, and barometric pressure. Better than the DHT22 for anything weather-related.
ESP32: read a DS18B20 temperature sensor with OneWire
Wire one or many DS18B20 temperature sensors to a single ESP32 GPIO pin. Multiple sensors, one wire, accurate to 0.5 C.
Arduino: read temperature with a DS18B20 one-wire sensor
Wire a DS18B20 temperature sensor to an Arduino using the OneWire protocol. Multiple sensors on one pin, accurate to 0.5C.