Stages

4-4Brightness with a KnobBuild a dimmer that makes the LED brighter or dimmer with a knob, and that doesn't burn it out even at the end of the knob

Power off

Parts

  • Resistor (choose one)1/1 left

Goals

  • Make L1 bright (15 mA or more)
  • Make L1 glow faintly (lit at 4 mA or less)
  • Turn the knob all the way to 0%
  • Turn the knob all the way to 100%

Rules

  • Don't burn out the LED at any knob position (25 mA max)
  • No short circuits
B15VVR11kΩ 50%L1Red−++−

Selected

Press a terminal (the small ◯) to start a wire. Press where you want to bend to place corners, and finish on another terminal or on a wire. Press the middle of a wire and then somewhere else to draw a branch from there. You can drag parts and wires to move them. When you are ready, press "Run!" to turn on the power, and try the switches while it is on.

Line mode

Keys

W
Draw wire
R
Rotate
M
Move
G
Drag
Del
Delete
⌘Z
Undo
⌘⇧Z
Redo
Enter
Run
Home
Fit
H
Hint

Wheel to zoom, right-drag to pan