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Im not familiar with the temp switch and what ranges activate them. Ecoli incubation requires the ecoli to incubate at 35 degrees celcius (-+0.5). I take water quality samples to determine the health of streams. Thought it would be fun to build a cheap incubator.
unfortunately +-2 degrees does not work.I have it set for 34.9 degrees. When it kicks off, the heat sink allows the temp to climb to 35.2. when it cools down, the temp gets down to 34.7 (even though it kicks back on at 34.9). It is staying within the range I need. its a 100W 12VDC heater (large resistor). Its been working well for 4 days now.
Arduino is pretty cool! Can do lots of stuff and there is a lot of code, tutorials and help in open source. Give it a shot!
make better pets than chickens...For water quality samples.
The blue wire is the input to switch from NO to NC. But I see your point...just turning on the relay will do the job. I have had no issues with power (been running 3 days) but will incorporate capacitor. Curious if I needed any relays.
specifically do I need any resistors other than the one for the DHT22?
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