How to make a 12v DC to 9v DC power converter.
This converter is particularly useful for working with Arduino boards which boards, if you wish to use an external power supply rather than the 5 v USB connection.
The circuit is simple to assemble.
Materials Required
1 LM7809
2 100 uF Capacitors
2 0.1 uF Capacitors
Vero Board
Schematic
The circuit is simple. The image below shows how it is wired on the Vero board.
Converter
You can add an LED on the output side as a power on/off indicator
This project is one of our tutorials related to Arduino Projects.