ModBus software works, MQTT bridge software added.

software/mqqt_to_pe1rxf_telemetry/README.md

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+# Python ModBus test program
+
+A simple test program to test ModBus peripherals connected to a serial port.
+
+## Configuration
+
+Edit config.yaml.
+
+## Requirements
+
+- Python3
+- minimalmodbus
+- json
+- time
+- sys
+- logging
+
+## License
+
+Copyright (C) 2025  M.T. Konstapel
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.