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  • Cheap and effective Sous Vide cooker (Arduino powered)

    Thank you for this amazing work ! Just finished mine and straight away went to buy a 470g (~1 lbs) steak from the butcher (he put it in a vacuum bag for me). My rice cooker is a bit small but powerful (1.5L - 1000W) and the temperature reached 64ºC (147ºF) in more or less 10min. When I added the steak it overshot the requested temperature by about 4ºC but then went down slowly and maintained it within 0.4ºC.I did run into some problems while mounting it :1/ First time I wired it on the Arduino Nano the display would only display 0 / 0. I disconnected everything and wired it on the Arduino Uno for easier troubleshooting and it worked straight away (even with the temperature sensor out in the air and the rice cooker disconnected). I wired it back on the Nano and it wor...see more »Thank you for this amazing work ! Just finished mine and straight away went to buy a 470g (~1 lbs) steak from the butcher (he put it in a vacuum bag for me). My rice cooker is a bit small but powerful (1.5L - 1000W) and the temperature reached 64ºC (147ºF) in more or less 10min. When I added the steak it overshot the requested temperature by about 4ºC but then went down slowly and maintained it within 0.4ºC.I did run into some problems while mounting it :1/ First time I wired it on the Arduino Nano the display would only display 0 / 0. I disconnected everything and wired it on the Arduino Uno for easier troubleshooting and it worked straight away (even with the temperature sensor out in the air and the rice cooker disconnected). I wired it back on the Nano and it worked as well, I guess the wiring was incorrect the first time but couldn’t figure where.Also on my 8 digit display, LOAD (that goes to pin 10) is labelled as CS.2/ The Relay would not open once the requested temperature was reached (and neither would it open reaching 95ºC). For some reason that I do not understand, I had to plug the relay on the Normally Closed pins, which made it work the way it should. If anybody has a logical explanation, I’m listening.I hope this will help those having similar problems.I did enjoy my perfectly cooked and tender steak and looking forward try new recipe in my inexpensive sous-vide cooker :-D

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