Observed arrival · 2026-11-02
ohmio: breadboard circuits you can see working
An interactive set of 25 breadboard circuits for exploring electronics, from LEDs and transistors to microcontrollers.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People learning basic electronics and microcontrollers
- Worth noticing
- Its examples range from a 555 astable oscillator to ESP32 and Arduino input/output circuits, with short explanations of what each component does.
Field notes
Circuit entries pair an interactive breadboard with a compact explanation of component behavior. The collection includes both fundamentals—such as pull-up and pull-down buttons—and board-specific examples for ESP32, ESP32-C3, and Arduino UNO. The page labels the project open source and notes that its video voice is synthetic.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue