Nothing like a short doc! From Leatherman on YouTube:
Made of Mettle is the unlikely success story of Tim Leatherman, who spent years in his garage engineering and designing the world’s first pliers-based multi-tool. Persevering through skeptics and hundreds of rejections, he finally brought to market the Leatherman PST, and changed, not only his life, but the lives of countless others around the world.
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.