DIGIPI

What is a DigiPi?

The DigiPi is the ultimate hot-spot for all amateur radio data modes, including
APRS, ax.25, winlink email, ft8, js8cal, slowscanTV, PSK31, packet and even CW.
The implementation is an elegant, inexpensive, low-power, open-source
Raspberry-Pi--based amateur radio data transceiver, managed exclusively by
web browsers or smart-phone apps, with no bulky keyboards, monitors or
complicated wiring.

Packet radio Terminal Node Controler KISS interface via wifi or bluetooth
Use with xastir, yaac, woad, aprsdroid, and any open-standard KISS apps

APRS WebChat interface
Send instant messages over the APRS packet network via your web browser

APRS Packet Radio Network digipeater
Repeat packets heard on 144.390 and 144.800(europe)

APRS Packet Radio network IGate
Bridge APRS Network to the Internet for email, sms, and other online services

Winlink email server
Listen for Winlink radio clients requesting to send/recieve email

Winlink email client
Pat, web-based inbox/outbox email interface
ARDOP sound modem to connect to winlink servers world-wide on HF bands
Woad Winlink Android app connects to DigiPi via wireless TNC/KISS interface

WSJTX FT8
Ultra low signal-to-noise ratio contacts via web-browser/wifi/phone

JS8 Call
Ultra low signal-to-noise ratio keyboard-to-keyboard via web-browser/wifi/phone

FLDigi
CW, PSK31, RTTY, Contessa, FSQ, Hell, IFKP, MFSK MT63, Olivia, PSK
QPSK, 8PSK, PSKR, THOR, Throb, WeatherFax

Slow Scan TV
Send/receive images via web-browser/wifi/phone

AX.25 Networking
Radio connected network protocol used for winlink/node services
IP tunnel, with actual address on the internet (44.* for amateur radio)

Node Services
Run your own bulletin board, or messaging service
Connect to other nodes, via intermediate nodes

Components
Raspberry Pi (Pizero, Pi3 or Pi4)
Audio board: Fe-Pi Audio Z v2 *or* Audio Injector Z (edit /boot/config.txt)
A simple push-to-talk circuit using a FET, resistor and gpio pin, or
A USB cable for radios which support cat/rig control and audio over USB
An optional Adafruit 1.3" TFT display
Optional LEDs for transmit/receive/bluetooth

Pre configured software on DigiPi Rapberry Pi SD card image:
Direwolf sound modem and TNC
Direwatch display driver
LinuxRMS Winlink server
Pat web-based winlik email client
Web-based mangement interface
Bluetooth rfcomm serial port
Wifi autohotspot
AX.25 Networking, IP, ax25d services
Virtual display driver to use interactive apps via web-browser/wifi/phone
WSJTX FT8
JS8Call
FLDigi
qSSTV
Linux Node service, netrom, bulletin board, Infocom games
Audio driver and mixer settings for audio hats (FE-Pi and Audio Injector)
ARDOP modem for 300baud packet on HF bands
Rig Control (rigctld) for CAT/audio on USB-connected radios
Web-based wifi setup, log viewers, and axcall tty interface