Thanks to Wilm for sending us this tip! Wilm writes:
We designed a badge for our family oriented maker/hacker camp last weekend with 600 attendees http://fri3d.be/. All attendees got one of these badges. We also sold a upgrade kit to make a bipedal robot based on Ph0xx (what we named our badge, for obvious reasons). The components are selected based on price and quality (for example, e sturdy FCI micro USB connector and SiLabs USB to UART, but cheap LEDS, buzzers, buttons and other connectors) To be fair, we got some sponsors which helped a lot in the process (AQC gave us all the PCBS, Espressif gave us 700 ESP32s, Dekimo granted us access to their prototyping and mass production facility)
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, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, 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.