Description
A tweak of the blinking LED, a 555 Timer circuit to alternate between a pair of LEDs, a bit like a railway crossing signal.
[video]
Schematic
Board
Bill of Materials
Designator | Value | Description |
---|---|---|
C1 | 10µF | Electrolytic capacitor; 1µF; voltage 10V |
R1 | 1kΩ | Resistor |
R2 | 470kΩ | Resistor |
R3, R4 | 470Ω | Resistor |
LED1, LED2 | LED-05R | 5mm LED red |
U1 | NE555 | 555 Timer |
VCC1 | 9V | 9V battery, PP3 or similar |
[JSON]
This project is published under the terms of the BSD License licence.