Desk weather station
Sensors, pull-up resistors, I²C screen
Coming soonJumper
Hardware engineering, in your pocket
Wire real boards on a 3D breadboard.
Jumper is a web app where you learn hardware engineering. You connect real boards and parts on a 3D breadboard, and the app guides you like a game. You do not buy parts. You need only a laptop or a phone.
Hi, I am Volt! I help you wire your first board.
How Jumper works
- 1
Pick a project
Each project is a real device. Start with Perch, a desk friend for an AI agent.
- 2
Wire it with guided pop-ups
A pop-up tells you what to connect, where, and why. The correct holes glow.
- 3
See it come alive
Pass each level. The light blinks, the device talks, and the screen shows a face.
Projects
- ESP32-S3
Perch: a home for your AI agent
A little desk friend with a button, a light, ears, a voice and a face
Play now · 5 levels - Arduino Uno
Arduino Foundations
Breadboard basics, Ohm's law, LEDs and buttons
Play now · 4 levels ESP32 DevKit V1 ESP32 DevKit V1 Plant-watering monitor
Analog input, relays, power for a pump
Coming soonESP32-C3 Focus timer with buzzer
PWM sound, buttons, LED patterns
Coming soonESP32 DevKit V1 Line-following robot
Motor drivers, IR sensors, separate motor power
Coming soon