Hello, I am working on designing my first arduino project. The goal is to protect my LED light bank from failure by using a thermocouple wire > maxwell6675 > arduino > power relay.
I already have the LED light built, it is using Cree CXB3590 COB lights. They are expensive and if they run too hot (because air conditioner breaks) then the arduino will kill the power to the light bank until the AC is repaired.
Please see the sketch attached to this post for my design.
Parts I think I need for the project:
1 x arduino mega
5 x max6675 thermocouple sensor
5 x 0.1uf caps for fixing line noise on maxwell6675s
5 x thermocouple wire
1 x Arctic Silver Arctic Alumina 5g Premium Ceramic Thermal Cooling Adhesive Set
1 x 5v one channel high power relay for switching off LED power.
??1 x 5v power supply that will have adequately power all the max 6675??
Will this design work? Since all the max6675 devices need 5v power, what is the best component I need to power all these devices simultaneously without putting a strain on all of them?
The cree chips have a thermocouple contact point… it is too small to solder onto so I will just use the ceramic adhesive which is what Cree LED and other LED manufacturers recommend. I realize that the reading will not be 100% accurate, that is OK. I will be able to “calibrate” it with a true handheld thermocouple temperature meter to make sure my arduino readings are relatively accurate.
Thanks for any feedback you may offer.