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AVR Thermocouple Temperature Meter using ATmega164 microcontroller




The benefit using thermocouple sensor for measure temperature is it has wide range measurement (-200 °C to +1350 °C / -328 °F to +2462 °F range for Type K), inexpensive, interchangeable, and is supplied with standard connectors. To get temperature value from output of a thermocouple, you need high precision amplifier and proper compensation circuit due to its small and relativistic output voltage.

Thermocouple Temperature Meter

This handy Thermocouple Temperature Meter is build based on ATmega164 microcontroller. The project uses MAX31855 thermocouple interface IC from Maxim. It integrates analog circuit and even the A-D converter, and outputs the temperature value in digital data. A digital LCD panel meter, TWV1302W, is used to display the temperature value.

For more detail: AVR Thermocouple Temperature Meter using ATmega164 microcontroller

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