Tell us about yourself!
You missed the point... Some DIY projects exist because they are just fun to build it.
Arduino? Naahh.. I don't think he used it as his system doesn't really need it.The resistor he used is the the led indicator, nothing else.
Because honestly, peltiers are inefficient and you need a good insulation for it to become a practical chiller. His design here is just more of a concept rather than of practical use.His temperature reading is the temperature of the cold side peltier and not the ambient temperature of his fridge, this means he has his probe in the wrong location.
His design is just for concept and not for practical use. I've learned it the hard way too.You need to consider you insulations if you are building a chiller/fridge in the firs place.His walls are too thin and most likely, a lot of gaps from the door. He also decided for the "see-thru door", which most likely compromised his insulation.He doesn't have a circulating fan inside, it will make ambient inside cool faster and prevent the cold heat sink from making ice
I highly doubt you need one. Arduino is an overkill for this project, plus there are a lot of cheap controller modules from online shops.
A lot.. Just properly ground it like any other common appliances we are using.
No.. Like what the last paragraphs said, it isn't for vehicle use. This is a demo project more or less.This technology is also what those water-fueled car inventors use. Or anyone that claims their machine only needs water to fuel it.
Might as well use the electricity used here in electrolysis directly for cooking instead.
Uhmm.. Why not use transistors?
Nice build but i don't think the cold side fan is causing significant heat.It's just that you should disspate more heat on the hot side. There's a reason why most peltier cooler setups have smaller heat sinks on cold side.If we want a cooler/chiller/freezer we want to dissipate the warm heat, so we put a larger heat sink at the hot side. We do the other way if we want a heater.I didn't try looking it my self but you can check the size of an aircon's Evaporative Fins (cold side) compare to the Condenser Fins (hot side). See which one is smaller in size.