AVR LCD Thermometer by LM35

The LM35 of National Semiconductors that is used in this project is a precision centigrade temperature sensor, which has an analog output voltage. It has a range of -55ºC to +150ºC and a accuracy of ±0.5ºC . The output voltage is 10mV/ºC . The output voltage is converted by the AD convertor of the AT Mega8. The temperature is displayed on an LCD module. In this example the thermometer has a range of 0ºC to 40ºC and a resolution of 0.5ºC. If you want to have a readout in Fahrenheit you can use the LM34.

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Thank you.

This entry was posted on Thursday, March 13th, 2008 at 9:44 am and is filed under Electronic Control, microcontroller. You can follow any responses to this entry through the RSS 2.0 feed.