Classic NE555 astable multivibrator driving a blue LED at ~1.4 Hz (R1=10k, R2=47k, C1=10µF). Pure analog blink — no microcontroller. SOIC-8 555 + timing R/C network on a 16x16 mm 4-pin Adom molecule.
How it works
This molecule is authored in tscircuit (TSX) and rendered through
adom-tsci for the interactive 3D viewer + Components / Nets HUDs +
Walkthrough Demo. The board source — lib/index.tsx,
package.json, walkthrough — ships as a downloadable source bundle
on this page. Untar it and run bun install && bunx tsci build to
recreate the GLB / PCB / schematic from source.
Live 3D viewer
Open the interactive viewer above to orbit the board, click any chip for refdes + footprint, run the Walkthrough Demo, or open the Nets HUD for the auto-glow x-ray view.
Hardware summary
| Block | Notes |
|---|---|
| Source | tscircuit TSX in lib/index.tsx |
| Build | bunx tsci build lib/index.tsx --glbs --svgs --3d-png --pcb-png |
| Preview | adom-tsci start . |
| Publish to wiki | adom-tsci export-wiki . --slug lm555-blinky-molecule --page-type molecules |
Files attached
- 3d.glb — full 3D model (open in any glTF viewer)
- pcb.svg / pcb.png — flat PCB layout
- schematic.svg — circuit diagram
*-source.tar.gz— full tscircuit project source (recreate withbun install && bunx tsci build)
Provenance
Authored with tscircuit; published via adom-tsci export-wiki from adom-tsci/examples/LM555-Blinky-Molecule.
Designed by Adom in Fort Worth, Texas.