Technology

Add a Thermometer to Your Multimeter

Add a Thermometer to Your Multimeter

Hardware hacker Raj wanted to expand the functionality of his multimeter, so he hardwired a temperature sensor to it. When building new circuits, measuring heat tolerance can be important, and this hack makes it easy to do. Using an LM35 temperature sensor, all he has to do is set the multimeter to 200mV and slide a switch at the top. His extensive documentation can be found here if you’d like to do it yourself.

Solar Powered Cigar Box Amp

Solar Powered Cigar Box Amp

Check out this lovely Solar Stella cigar box amp built by John Wilson of Minneapolis, MN. My original plan for this amp was to make a rather rugged poly-coated wood enclosure that could stand up to being left outside in a light rain. On the other hand, I also wanted to finish my amp by […]