Before you wire

Explore breadboards, follow a return path and choose a board. Start here without an account or hardware.

Content and en/rw/fr translations are drafts pending fluent educator review.

Hardware terminal reference

Circuit Studio

Wire and Blink an LED

1. Explore a breadboard

   Identify connected holes, rails and the center gap.

2. Power, signals and an LED return path

   Trace a closed path and distinguish GPIO, supply and GND.

3. Digital, analog and PWM

   Distinguish two-state signals, measured values and pulse duty cycle.

4. Arduino · UNO R3

   Identify this example, its board class and pin limitations.

5. ESP · ESP32-DevKitC V4

   Identify this example, its board class and pin limitations.

6. STM32 · NUCLEO-F401RE

   Identify this example, its board class and pin limitations.

7. Raspberry Pi Pico · RP2040

   Identify this example, its board class and pin limitations.

8. Raspberry Pi computers · Pi 4 Model B

   Identify this example, its board class and pin limitations.

9. BeagleBone · BeagleBone Black

   Identify this example, its board class and pin limitations.