Every question, curiousity and doubt anyone has ever had about Peltier cells seems to be addressed in this FAQ from Tellurex. I stumbled across it over the weekend, and yes … it’s marketting material, but there’s still a lot of good information in there if you want to keep your favorite that beverage nice and chilly, or scavanage free energy using a heat differential. If you didn’t know about Peltier cells, now’s a great time to look them up and figure out some fun things you can do with them (post the details below … I love these things)!
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.