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Update EG4.md to include information for Raspberry Pi Can Hat #71

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Dec 5, 2024
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Update EG4.md to include information for Raspberry Pi Can Hat #71

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Update EG4.md
Crash-GHaun Dec 4, 2024
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HotNoob Dec 5, 2024
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10 changes: 10 additions & 0 deletions documentation/devices/EG4.md
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Expand Up @@ -15,6 +15,16 @@

3. Connect appropriate wires to USB RS485 Adapter

## Raspberry Pi Can Hat
If using a Raspberry Pi Can Hat, The expected pinout RS485 A/B configuration maybe be reversed.

If you get the following error while using a Raspberry Pi Can Hat swap your A/B wires:

```
ERROR:.transport_base[transport.0]:<bound method ModbusException.__str__ of ModbusIOException()>
```


## Configuration
Follow configuration example for ModBus RTU to MQTT
https://github.com/HotNoob/PythonProtocolGateway/wiki/Configuration-Examples#modbus-rtu-to-mqtt
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