LED Blinking Circuit Design
Worked for 4 mins 6 sec
Created 2 project docs
Project Specification
Hand-solderable 9V battery powered red LED blinker using a DIP-8 NE555 timer in astable mode. The LED blinks approximately once per second a...
Board Bring-Up Plan
Inspect solder joints, especially BT1, SW1, U1, C1 polarity, D1 polarity, and the axial resistors. Confirm C1 positive lead is connected to ...
Built the schematic for a hand-solderable 9V NE555 red LED blinker and renamed the project 1 Hz 555 LED Blinker. It uses a 9V battery holder, SPST slide switch, DIP-8 NE555, through-hole LED, axial resistors, and leaded capacitors; ERC/review checks show no open warnings or errors.
Open items:
- PCB placement/routing has not been done yet.
- Blink rate is nominally ~0.99 Hz; electrolytic capacitor tolerance will shift the exact timing.
Docs created:
Suggested next steps:
- Place the through-hole parts on a simple PCB.
- Route the board.
- Add silkscreen labels for battery polarity, switch ON direction, LED polarity, and 555 orientation.
Place route review
Place the PCB
Route the board
Add silkscreen labels
Run layout checks
