Lessons
Step by step, with the circuit next to the words
A lesson opens in the editor: the steps on the left, the circuit on the right, and a Check button that reads the running simulation instead of taking your word for it. No account needed to follow one.
1One loop, four parts
Everything on the board is one loop.
2Run it, and hold the button
The LED has to light
This is the real simulator and a real checkpoint. Check reads the LED on the running circuit.
Built in
Start here
The four we wrote, in order. They follow the first weeks of the 12-week course.
A first circuit
One loop on a breadboard: five volts, a pushbutton, a resistor and an LED. Build the habit of reading a circuit as a loop, and work out the current in it.
Blink: the first program
An Arduino Uno, one pin and a program. Drive an output from code, watch the timing be real, and find out what delay() costs you.
Reading a button, and printing what it says
A pull-up, a pin that reads low when the button is pressed, and a count printed to the serial monitor. Finish by catching the contacts bouncing.
Timing with no processor: the 555
A resistor, a capacitor and a 555 make a square wave with no code in sight. Measure it, then change the parts to change the rate.
Community
Published by other people
Anyone can write a lesson on their own circuit and publish it.
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Your account
Yours
Lessons on your account, published or not.
