Breadboard Bench

See it on the board before you touch a part. New here? Start with the basics.

All 8 nets correct

Scroll or drag to move around · pinch or Ctrl/⌘+scroll to zoom · Space+drag pans while placing · Shift+1 fits, Shift+2 zooms to the selectionTwo fingers move and zoom the board. One finger scrolls the page.

Tap any hole to see everything it’s electrically joined to. Tap a part to see where its legs go.

Schematic

Tap a part or wire to find it on the board. Scroll or drag to move around, pinch or Ctrl+scroll to zoom. Faded parts aren’t on the board at this step.

Stay safe: disconnect the battery while you change wiring, and keep the amp at zero when you power up.

Step 1 of 7

Clear the board, build the power

Pull everything off the board, including the old Vref divider; the photos in your v0 doc are the record. Then build the supply on the left rails. This design uses only the left + and − rails.

Measure: battery alone, then the + rail to the − rail. The rail should read about 0.7V less than the battery.