In February 2010, EDN tore down its first LED bulb (Reference 1). For $20, you got a non-dimmable bulb that produced 500 lumens at a cool white (5000K) and consumed 7W. The warm-white version of the light produced only 450 lumens. Two years later, you can buy this fully dimmable Samsung bulb for $19.95 (list price) that puts out 550 lumens of a nice warm white (3000K), consumes 10W, and boasts a five-year warranty.
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.