A couple of weeks ago I built a water-cooled Raspberry Pi 4. It was a fun project and it came out looking pretty good, but was obviously crazy overkill for a single Raspberry Pi. This isn’t actually why I bought the water-cooling kit, I bought it along with 7 other Raspberry Pis to try building my own water-cooled Pi cluster.
While water cooling a single Pi doesn’t make much sense, it’s actually quite an effective solution for a cluster. A single large fan means less noise and it actually works out cheaper than many other fan and heat sink solutions given that you’d need to buy 8 of them.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.