How to: Refrigerator control with Arduino Uno

How to use an Arduino Uno to control a Refrigerator temperature.
This project was my experimental temporary solution while waiting for a replacement thermostat.
Warning: This project controls the main AC voltage (220v or 110v) using a relay. Care should be taken to connect the wiring properly.
Source Code:
drive.google.c...
Thermistor Reading:
www.circuitbas...

[@ii7mdj_353]

That’s exactly what I’ve been searching for, thanks dude 😁.

[@naseemshan6892]

Good work.
include compressor protection and temperature control over switches without the help of using pc

[@cavy-lab3146]

Actually, the PC is just for temperature graph display. The Arduino will work fine without a PC. The StateDelayCount = 180 in the code defines both the compressor startup delay and minimum interval between each ON and OFF cycle of 3 minutes.
The current code has an ON temp of 3.0 Celcius and OFF temp of 0.0 Celcius you can change that in the "if" statement.
Thank you. Sorry for the late reply.

[@prabalkumarsamanta8333]

Can we add a defrost heater function and auto defrost timer system also with this aurdino?

[@rhtservicestech]

Good would. Would have suggested you use a 120v to 12v transformer so that everything could be inside the refrigerator. That way wouldn't have to have the air leakage around the door where the wires run out

[@ruffamaeestrella1762]

Hello sir can you make a drinkable water cooler using TEC controlled by arduino?

[@nikoskalogridis]

That’s quite an expensive thermostat

[@maraz37ali]

güzel bir iş değeri parayla ölçülemez dostum..

[@duotronic6451]

What's with the freakishly long fingernails these days? 😂😂😂

[@andyandrew2453]

Make one, dont repair one.