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Dual thermometer with display and plot

Posted: Sun Aug 24, 2014 3:52 am
by jgrina
mlpcapture.JPG
Current interface panel
mlpcapture.JPG (118.49 KiB) Viewed 9394 times
I've expanded the pin 13 program to measure two temperatures with DS18B20 sensors and plot the results over time.

Jim

Re: Dual thermometer with display and plot

Posted: Tue Aug 26, 2014 3:23 am
by jgrina
TEMPin13.jpg
TEMPin13.jpg (178.63 KiB) Viewed 9389 times
I had a problem with my old XP laptop and this is a migration to a very nice Hannspree (10") with an HP 22" external monitor. The new laptop is Windows 7 and a bit of a learning curve. However, the Arduino/Megunolink apps migrated very easily. The dual temp is currently tracking room temperature and dew point temperature. I'm going to shift the dew point to a probe in the vent for the ac/heat system. The old AC unit died, so I'm tracking the new unit. The new unit is so quiet that I can't tell when it kicks in. By putting a probe in the vent, I will get a sharp drop in temp when the AC kicks in. By plotting that against room temp I will get some idea of how well the new AC works. There are several interesting events to monitor, and with the Arduino. extended with additional processors and sensors, I can use the MegunoLink Pro to create appropriate displays.

Re: Dual thermometer with display and plot

Posted: Sat Sep 06, 2014 12:41 am
by philr
Nice work Jim! Looks like MegunoLink is providing a flexible tool for your AC system investigation.