Added setup images into local repo

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sh123 2020-02-10 19:39:15 +02:00
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# Experimental LoRa APRS ESP32 APRSDroid bluetooth modem and LoRa APRS-IS iGate
Tiny experimental amateur radio ESP32 based LoRa APRSDroid KISS Bluetooth modem and LoRa APRS-IS iGate server.
![alt text](https://www.smart-prototyping.com/image/data/5_community/WIFI/101770%20Ra-01/2.png)
![alt text](images/pinouts.png)
Can be used in two modes:
- **as a LoRa APRS client**, you need to use APRSDroid application (https://aprsdroid.org), connect to the modem using bluetooth, data will be re-transmitted through the LoRa radio, this is similar to APRSDroid micromodem - https://unsigned.io/micromodem/, received data will be sent back to the APRSDroid using bluetooth. By having two clients you can not only send your position, but also send and receive APRS messages.
@ -33,6 +33,7 @@ Can be used in two modes:
- note, that there a is **significant frequency drift** on temperature changes for different modules, you need to use **external TCXO** if you are planning to use modules for narrow bandwidths less than 125 kHz or calibrate clients based on server frequency drift report by changing **LORAPRS_FREQ**, which is OK for experiments
# Test Results
![alt text](images/setup.png)
- Antennas
- Client - rubber duck antenna or mobile antenna on a car roof
- Server - UHF yagi indoors

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