An open mic for electronics builds, straight from the bench.
Show and Tell is Adafruit's open mic for hardware, where a Fruit Jam board running retro game emulators and a moving Hanukkah decoration made of dreidels and gears both get a turn. Adafruit staff and friends tend to go first. After that, anyone with a browser, a camera, a microphone and a project can join through StreamYard.
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Show and Tell is Adafruit's live open mic for hardware, streamed on Wednesday evenings, and the idea is simple: bring what is on your bench and talk it through. Joining is easy. A StreamYard link goes up in the Adafruit Discord or on the blog, and a presenter needs little more than a browser with camera and microphone permissions. The invitation covers DIY electronics, 3D printing and even an office tour. The host changes from night to night. Liz introduces herself as host on some evenings, John Park runs another, and Pedro co-hosts a December episode. Adafruit staff and friends tend to present first, followed by whoever from the community has joined. On one night the room empties early, and the hosts just move on to what is coming up. The projects vary a lot, but they are always hands-on. During one screen share, debug output from Zephyr scrolls past on an nRF5340 board. A Fruit Jam, with HDMI out, an SD card, a DAC and USB host, runs one menu of Game Boy, NES, Genesis and Sega Master System emulators. A CircuitPython camera gadget sends snapshots to an online feed, and the talk quickly turns practical: is the garage door open, is anything at the bird feeder, did the stroller get put away? A moving Hanukkah decoration with dreidels and blue gears reminds the hosts of the little figure skaters in Christmas villages. When they ask why the gears seem to float, the builder explains a hidden carrier plate and color-matched supports. The hosts ask the questions a curious builder would ask, and more than once the answer ends with a guide still to come. Software gets as much time as hardware. An app browser backed by GitHub, running on a board with an ESP32 Wi-Fi coprocessor, fetches icons, descriptions and authors for community apps, including a Z-machine for Zork. The AI talk covers having a model write CircuitPython tests and using one to replace bare integers with error-number types. It also includes an honest aside about open-source examples showing up in AI-generated code. Jay from DigiKey starts one episode from Minnesota, where he is visiting DigiKey headquarters and enjoying the cold, far from his usual L.A. A lot of the charm is that nothing is scripted. John Park starts a night laughing about two minutes of talk before he was actually live. New parents on the team broadcast from a home setup with news of their two-month-old, and a flu going around the Northeast gets a mention. There is even a side trip to an auctioned 1975 program Steve Jobs wrote while working at Atari. The sign-offs point to other Adafruit streams, such as JP's workshop show and Scott's Friday deep dive. For a first listen, 'SHOW and TELL 1/7/26' is a good pick, since it includes the Fruit Jam emulator menu.
Made for: Suits a listener who likes seeing electronics projects mid-build, tinkers with CircuitPython or small boards, and might want to join the stream with a project of their own. Some demos rely on screen shares, so it fits someone who is happy to follow along visually.
What sets it apart: It works as an open mic for hardware: anyone who joins the stream can hold up a build, and the Adafruit crew's own works in progress, some headed for Learn guides, share the same lineup.
Electronics show and tell with G+ On-Air hangouts every Wednesday at 7:30pm ET.
A chessboard with magnetic pieces gets the question you were about to ask: how does it sense them?
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Short reviews from the PlayNext desk, based on the episodes we processed.
A wearable robot and LLM-assisted CircuitPython testing anchor a practical look at hands-on hardware work.
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A weekly show where makers and hobbyists share their electronics and 3D printing projects in a live video hangout.