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Michael Clemens 2021-11-12 09:34:00 +01:00
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# Hardrock-50 Remote Display
The Hardrock-50 is a 50W power amplifier for amateur radio QRP transceivers. It has a display showing valuable information like the selected band, the SWR, power, temperature etc. Since I am using the HR50 in a remote station, I cannot directly access those information via the display.
However, the HR50 offers serial communication via a USB port. This project tries to solve this problem with the help of a separate, wifi enabled hardware display. It consists of the following two components:
* Heltec ESP32 board with display
* a python flask application, which represents the communication via the serial interface in the form of an API
This is how the display looks like in action:
![Photo of the Heltec board](hr50-remote-display.jpg "Photo of the Heltec board")
## Configuration
Edit the following lines inside the Arduino sketch:
```
const char* ssid = "<ENTER_HERE_YOUR_WIFI_SSID>";
const char* password = "<PASSWORD>";
String api_url = "http://<ENTER_HERE_THE_IP_OF_YOUR API_SERVER>:5000/status";
```