Adding thermometer feature to an inexpensive digital multimeter 2013-01-29

Digital multi-meters are found dirt cheap on Ebay. For less than five bucks, you can buy a multi-functional digital meter with features of a variable-range ohmmeter, voltmeter, ammeter, and more. Here I am going to show you how you can add a thermometer feature to these inexpensive multimeters using minimum external components and without affecting the functionality of the meter itself. All you need is:

1. Two resistors (1.8K and 200R)
2. One TMP35 temperature sensor
3. One DPDT...

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