Arduino Callsign beeper PCB only

Arduino Callsign beeper PCB Only

Callsign beepers are essential for path lineups on microwave frequencies. This simple CW generator plugs directly into the CW jack of your radio or any other ground-switched transmitter.

See the Callsign beeper CW interface blog post to download the sketch as well as more information including the parts list. This project produces an output that closes the CW circuit in your radio.  It also has a +12v output should it be needed for other projects.

What’s available here is an unpopulated PCB No components are supplied, just the PCB.

Parts List (PCB supplied – you need to source the rest.)

1 x Arduino Nano
1 x 7812 12v regulator
3 x 4K7 1/4W resistors
1 x 22K 1/4W resistor
1 x 680R 1/4W resistor
1 x 3mm LED
1 x 2N2222
1 x 2N3904
1 x 2N3905
2 x 15-pin headers (Nano)
3 x 2-pin headers (IO)

The sketch is available from the Callsign beeper CW interface blog.

The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). It has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack and works with a Mini-B USB cable instead of a standard one. Read more about the Arduino Nano.