AllStar Node using the Baofeng 888

Ido

8 years ago

AllStar Node using the Baofeng 888

I recently helped a few guys setting their AllStar node (configuring the RPi and all this stuff) and I wanted to have one for myself.
The required hardware for that project are Raspberry Pi, Transceiver, some kind of URI to control the PTT and Audio.
Although I have a DMK URI (the recommended one for AllStar), I wanted to try the USB soundcard hack.
I found WA3DSP’s tutorials very useful.

Links:

The main tutorial
USB FOB mod
Baofeng 888 mod

Note:
Please note that on the USB FOB mod, you should look down on the “Futher Information” section to get the scheme PDF.
You’ll find what chip is compatible, I used a CM108.

Note:
On the Baofeng mod, I got the newer version of the board and connected the COS line as shown in the “Update!” section (no need to desolder the antenna connector etc.)

My changes

Components

So, I changed a few components…
Here’s the list:

Original Component	I used	Links to buy
2N2222	2N2222	Amazon
BAT43	1N4001	Amazon
1N4007	1N4001	Amazon
Baofeng 888s		Amazon
CM108 USB Sound Card		Amazon
Raspberry Pi 3 Model B+		Amazon

Also, I didn’t use 68k on the Baofeng for the audio out line.

Connectors

I decided to give up on the DB25 connectors and connect the USB directly to the Baofeng 888.

More stuff

In the Baofeng 888, you’ll have to desolder the white LED to make room for the cable to go through. I also had to file the hole a little bit due the size of my cable.