Logic Gate Sandbox

Breadboard in 3D. Gates wait 80 ms so you can watch a signal ripple. High is 5 V, low is 0 V.

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0 V / 5 V

1 · 5 V
0 · 0 V

Place a part, or load a preset.

Drag the empty board to orbit. Pinch or scroll to zoom.

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Tap an output pin, then an input pin. On a phone, use the Wire buttons.

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Ideal 0/5 V logic. An open input sits at 0 V. Each gate and flip-flop waits 80 ms before the new level shows up on the wire, so a chain ripples. Fan-out is free. An input takes one driver. The D flip-flop samples D on the rising edge of CLK, and QN is the complement. The display pin A is the LSB. A loop that keeps toggling is stopped and flagged instead of freezing the tab. This board stays in this browser, and Export writes the same JSON.