This is a LoRa APRS Tracker with Access Point for real time configuration. Its main use is to send a periodic beacon containing:

• callsign
• GPS or fixed coordinates
• Altitude
• Battery voltage and current

Any received LoRa APRS packet, including the one repeated by a local digipeater, is displayed in the (very) small display.

This LoRa APRS Tracker is derived from (https://github.com/lora-aprs/LoRa_APRS_Tracker) by peterus

I added an Access Point and Captive Portal for easy configuration.

You can use one of the Lora32 boards:

• TTGO T-Beam V0.7 (433MHz SX1278) The original software is designed for it, also, but I never tried.

• TTGO T-Beam V1 (433MHz SX1278) This boards cost around 35 Euros and includes a small 0.96" display Keep in mind: you need a 433MHz version!

• Or you can build your own. See below

Front view

Rear view

Please note that I changed the GPS antenna with a most performing one.

The original antenna

The most performing antenna

The best success is to use PlatformIO (and it is the only platform where I can support you).

• Go to PlatformIO download and install the IDE.
• If installed open the IDE, go to the left side and click on 'extensions' then search for 'PatformIO' and install.
• When installed click 'the ant head' on the left and choose import the project on the right.
• Just open the folder and you can compile the Firmware.

• Press the service button (the middle one) for more than 5 seconds and a WiFi hotspot will be alive (SSID: ESP32_APRS)
• Connect to it with your smartphone or PC using the password 12345678
• After connection navigate to http://192.168.4.1 and the settings web page will show

Be very careful when you change them!

activate only one!!!

• I suggest to start with fixed_beacon (that don't use GPS and send the location set)
• Then try beacon (use GPS location).
• Finally you can try smart_beacon in a moving vehicle.

• These are the settings for a beacon transmitting fixed coordinates (not using GPS)

• These are the settings for a beacon transmitting the GPS coordinates every 20 minutes

• These are the settings for a beacon transmitting the GPS coordinates more frequently if the tracker moves at a higher speed

• These are the settings for an external transmitter connected by its Push To Talk
• Pleas note that you can save the settings or restore default settings