Converting camping deep freezer into off grid fridge project is made possible by using AtTiny85. This (AtTiny85) is the heart of the system, and will control all of the functions of the temperature controller.
When on an outdoor camping activity, having a portable fridge becomes important for the storage of some perishable food items and other consumable food items that are best served chilled. A fridge regulates temperatures between -10°C to +10°C and keeps the food chilled and most drinks ready for consumption.
On the other hand, a deep freezer may not be an effective alternative here because the food items can get completely frozen. A deep freezer can attain frozen temperatures of -7°C to -26°C; food items like eggs, canned food, and drinks, wines, fruits, and vegetables may depreciate in taste and texture if completely frozen. On my last camping experience with a deep freezer, my eggs got cracked, and the canned foods and drinks burst open.
It is possible to convert your camping deep freezer into a fridge instead of purchasing a new fridge that may cost so much just for a pleasant camping experience; also, most fridges have been designed for indoor use and may perform poorly when used during an outdoor camping activity. Converting your camping deep freezer into a fridge can allow for the outdoor rugged design which will be adequate for the actual purpose of storing some perishable food items and other consumable food items that should be best kept chilled (not frozen).
Here is how I converted my camping deep freezer into a fridge using AtTiny85 temperature controller on a seven-system circuit with easy to find components without making significant modifications on the deep freezer itself.
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