Blinking LED Circuit Design
Make a circuit that blinks a red LED once per second.
Power it with a 9V block battery through an on/off switch.
Use components that are easy to hand-solder.
Thought
I’ll build a hand-solderable 1 Hz red LED blinker using a 555 timer astable circuit, powered from a 9 V battery through a switch. I’ll pick through-hole parts, calculate the timing/LED resistor values, wire the schematic, then run checks and fix any issues.
Worked for 42 sec
