A few months after we published our Digital Calipers DRO video tutorial we received an email asking if it would be possible to adapt the project to make talking calipers that read the value out loud over a set of speakers for a blind mechanical engineering student to use. Using the same technique we used in our Huffman Coded Audio Halloween video to store and playback audio from the chip we were able to build talking calipers for Terry to use in his job and his mechanical engineering studies.
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.
