Stages

10-5Stop When It StallsBuild a protection circuit that measures the current, cuts the FET when the motor is held still, and keeps it off until START is pressed

Power off

Parts

  • Resistor (choose values)4/4 left

Goals

  • Press and release P1, and it keeps running
  • Hold it while running, and the current is cut
  • It stays stopped after you let go
  • Press P1, and it runs again

Rules

  • Don't break the FET with overvoltage
  • Don't overheat the FET
  • Don't leave the gate floating
  • Don't damage the ICs (ratings)
  • Don't burn out the diode (3 A max)
  • No short circuits
B112VD1M1Q1IRLZ44NRS0.1Ω+−LM35832184U1VCC8GND1TRIG2THR6DIS7OUT3RESET4CTRL5555U2P1 START−++−GDS

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