In the code we use function read_temp() that returns an integer, in our case the temperature. Inside the function we start the transmission by using function beginTransmission() from the Wire object ...

According to Microchip Technology Inc.’s datasheet, MCP9808 digital temperature sensor chip converts temperatures between -20°C and +100°C to a digital word with ±0.25°C/±0.5°C (typical/maximum) ... / ...

Nice method and analysis. The temp sensor 3 pin devices are simple and cheap but good for 0.5 deg C precision or nearly a full degree in human measure.

This video demonstrates how to set up a remote temperature monitoring system using an Arduino Uno R4 WiFi, an LM35 temperature sensor, and the MQTT protocol. The system captures ambient temperature ...

– The MCP9800 temperature sensor is used for cold junction compensation. – The MCP3424 analog-to-digital converter measures the voltage produced by each thermocouple. – The DS3231 real time ...