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ATMEGA328 Bootloader Programming Shield for Arduino Uno
Garduino: Gardening + Arduino
Arduino Mini CNC Plotter Machine from dvd drives
OV7670 Arduino Camera Sensor Module Framecapture Tutorial
Arduino Ethernet Camera
Wireless Home cloud for the crowd
Arduino DUE SD Card
Fitting Dupont Connectors
Window-like lamp from old computer monitors
Solar/Grid Hybrid 12V System
Another bad news. A Peltiers can't be controlled by relays (only voltage/current). It designed for 5000 On/Offs (datasheet), and relays kill him after 1-2 months. Still more - for temperature about 18-20ºC (32-34ºC ambient and 47L capacity of box - from my experiments) You need 4 elemts + good fans in mode 24/7. Consumption about 300W, more than home refrigerator. I not found normal solution.
Peltier Fermentation Chamber for Beer
Hi!All not so good. I make it (my own construction but very similarly. First all chine elements consume less current. So TEC1-12706 only 3A, TEC1-12710 - 5A. So possibly anouth only 2 relays and 1 power supply.Second - construction not worked. On the lower heatsink (in cooling mode) produced condensate. Water get into fan and this kill it.And on the end - not effective. Difference in themperatures nit more 10°C. Not have ice.Sorry for my english.
Arduino Mega 8x8x8 RGB LED Cube
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The REAL ginger beer recipe!
Repair Tablet Touch Screen (digitizer)
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