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126 lines
3.4 KiB
Markdown
126 lines
3.4 KiB
Markdown
# NibeGW Hardware and Compiling hints
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## RS-485 Modules
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For settting up a NibeGW you need a RS485 module.
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While ProDiNo already have RS-485 support included, you need a separate module for Arduino Uno.
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Most cheap modules out there are compatible with 5V voltage and therefore compatible with Arduino based hardware.
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Mostly you will get one of two commonly used designs:
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* Modules based on Max1348 chip, which has 2 pins on the Arduino side (RXD, TXD) + VCC + GND
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* Modules based on Max485 chip, which has 4 pins on the Arduino side (RO, RE, DE, DI) + VCC + GND
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Both types of modules work fine with NibeGW.
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The difference between the two is, that the Max485 chip needs to be switched between RX mode and TX mode manually while the Max1348 chip do this automatically.
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That is why you need an extra "direction pin" on the Arduino to switch the module with Max485 chip between the two modes.
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#### Wiring diagram for Max1348 based modules:
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```
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TX RX 5V GND Arduino
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RX TX VCC GND Max1348 based module
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```
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#### Wiring diagram for Max485 (PIN2 is used as direction pin here):
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```
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TX RX PIN2 5V GND Arduino
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DI RO DE RE VCC GND Max485 bases module
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```
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## Ethernet Shield W5100
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This Ethernet shield is based on Wiznet W5100 Ethernet Chip.
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It is supported by the Arduino Ehternet Library.
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No special configuration is needed, NibeGW supports this shield out of the box.
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ProDiNo already have Ethernet included, so there's no need for a separate Ethernet Shield.
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Also the ProDiNo Ethernet is supported by NibeGW out of the box.
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## Arduino Uno
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Arduino Uno has only one serial port which is shared with USB.
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So make sure to disconnect all hardware (ethernet shield, RS485 module, etc.) while uploading the compiled sketch to the Arduino.
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Furthermore do not use the USB port while Arduino is communicating with the Nibe heatpump.
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For compiling NibeGW, you have to make the following changes to the code:
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#### Config.h:
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Comment out support for all special boards:
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```
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//#define PRODINO_BOARD
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//#define PRODINO_BOARD_ESP32
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//#define TRANSPORT_ETH_ENC28J6A0
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//#define ENABLE_DYNAMIC_CONFIG
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```
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Comment out debugging on the serial console:
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```
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//#define ENABLE_SERIAL_DEBUG
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```
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Adjust the settings for your ethernet connection, target ip and ports and modbus module to simulate.
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Leave the serial configuration untouched - it is fine for Arduino Uno.
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#### NibeGW.h:
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Enable support for HARDWARE_SERIAL:
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```
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//#define HARDWARE_SERIAL_WITH_PINS
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#define HARDWARE_SERIAL
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```
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## ProDiNo ESP32 Ethernet v1
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Todo
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## ProDiNo Ethernet V2
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Todo
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## Debugging
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Debugging messages are available by connecting to port 23 to your NibeGW via telnet. Enable debugging in Config.h:
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```
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#define ENABLE_DEBUG
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#define VERBOSE_LEVEL 5
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#define ENABLE_REMOTE_DEBUG // Remote debug is available in telnet port 23
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```
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You can connect to NibeGW with any telnet client. You can also set some options via telnet. With 'h' you get a menue with all available options:
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```
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Arduino NibeGW
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Commands:
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E -> exit
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i -> info
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1 -> set verbose level to 1
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2 -> set verbose level to 2
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3 -> set verbose level to 3
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4 -> set verbose level to 4
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5 -> set verbose level to 5
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```
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On the target IP you can see the receiving udp messages with netcat (if you changed the default target port 9999, you also have to adjust it here):
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```
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nc -lu 9999 | hexdump -C
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```
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