About this document

DIY Digital Thermometer Circuit Guide by Asad Abbas is a document available to read on EtoBox.

This digital thermometer can measure temperatures up to 150°C with an accuracy of ±1°C. It works by passing a constant current through a transistor, whose voltage varies with temperature. This voltage is amplified and read on a voltmeter. The circuit uses operational amplifiers powered by a 9V battery and regulated voltage sources to stabilize the current and amplify the temperature signal for display.

Author

Asad Abbas

Language

EN