Red LED Blinker Circuit Design
Thought for 7 sec
I’ll build a hand-solderable 1 Hz red LED blinker using a 555 astable circuit, a 9V battery input, and an on/off switch. I’ll select through-hole parts, wire the datasheet-standard support capacitors, calculate the timing values, then run checks.
Worked for 7 mins 24 sec
Built the 9V hand-solderable 555 LED blinker schematic and documented the design in Project Specification. It uses a DIP-8 NE555P, 9V battery holder, SPST switch, 5mm red LED, through-hole resistors, timing cap, pin-5 bypass, and supply decoupling/bulk caps; calculated blink rate is about 1.06 Hz.
Validation found no remaining schematic/ERC issues; the only unresolved review items are PCB airwires, which are expected because placement/routing has not started yet. Ready to move to PCB layout when you confirm.
Set board size
Place components
Run layout DRC
Add mounting holes
