Old School Side Project: I wanted to create a universal BCD controlled nixie display driver that could be made into a simple module for any application. Here for demonstration I have breadboarded an automatic counting circuit with a 555 wild clock triggering a BCD output up/down counter to act as a driver for the separate high voltage transistor control/switching board and nixie display, with complete low voltage regulated and high voltage supplies. All vintage parts too. Enjoy!
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.