Picture of Digital Arduino Voltmeter with Temperature
One of my projects required the testing of aquastats, and we needed to monitor voltage (12-14vac) as well as temperature. I originally started with a TMP36 analog temperature sensor, but was unhappy with the output. It varied a few degrees every few seconds with no  obvious change in the environment. I changed it out for a DS18B20 didgital sensor. I offer both versions here for your enjoyment.

For more info on this and other related projects see:
Remove these adsRemove these ads by Signing Up

Step 1: The case

Picture of The case
I dug out an appropriate case from the dumpster, milled out a rectangular hole for the lcd, and drilled holes to mount the LCD and the Arduino. I used brass standoffs and fiber washers to prevent shorts. Then I gave the whole case a quick spray of flat black to cover the scratched and scraped gray that originally covered the case.
KawtherA1 month ago

hi ..i am doing the same project my design a little different may i ask u some qustions in ur project how can i contact u ?