Add Ethernet documentation for RAK4631 ETH support

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ryan Gregg 2026-03-10 20:58:34 -07:00
parent aea64e1f19
commit ffe0853d7f
2 changed files with 48 additions and 0 deletions

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@ -19,6 +19,7 @@ This document provides an overview of CLI commands that can be sent to MeshCore
- [GPS](#gps-when-gps-support-is-compiled-in)
- [Sensors](#sensors-when-sensor-support-is-compiled-in)
- [Bridge](#bridge-when-bridge-support-is-compiled-in)
- [Ethernet](#ethernet-when-ethernet-support-is-compiled-in)
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@ -881,3 +882,25 @@ region save
**Default:** Varies by board
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### Ethernet (when Ethernet support is compiled in)
Ethernet support is available on RAK4631 boards with a RAK13800 (W5100S) Ethernet module. Use the `_eth` firmware variants (e.g. `RAK_4631_repeater_eth`) to enable this feature.
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#### View Ethernet connection status
**Usage:**
- `eth`
**Output:**
- `ETH: <ip>:<port>` when connected (e.g. `ETH: 192.168.1.50:5000`)
- `ETH: not connected` when Ethernet is not active
**Notes:**
- The Ethernet interface obtains an IP address via DHCP automatically on boot.
- A TCP server listens on port 5000 (default) for CLI connections.
- For repeaters and room servers, connect with any TCP client (e.g. `nc`, PuTTY) to access the same CLI available over serial.
- For companion radio firmware, the Ethernet interface replaces BLE/USB as the transport to companion apps.
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@ -97,6 +97,7 @@ A list of frequently-asked questions and answers for MeshCore
- [7.5. Q: What is the format of a contact or channel QR code?](#75-q-what-is-the-format-of-a-contact-or-channel-qr-code)
- [7.6. Q: How do I connect to the companion via WIFI, e.g. using a heltec v3?](#76-q-how-do-i-connect-to-the-companion-via-wifi-eg-using-a-heltec-v3)
- [7.7. Q: I have a Station G2, or a Heltec V4, or an Ikoka Stick, or a radio with a EByte E22-900M30S or a E22-900M33S module, what should their transmit power be set to?](#77-q-i-have-a-station-g2-or-a-heltec-v4-or-an-ikoka-stick-or-a-radio-with-a-ebyte-e22-900m30s-or-a-e22-900m33s-module-what-should-their-transmit-power-be-set-to)
- [7.8. Q: How do I use Ethernet with a RAK4631?](#78-q-how-do-i-use-ethernet-with-a-rak4631)
## 1. Introduction
@ -878,3 +879,27 @@ For companion radios, you can set these radios' transmit power in the smartphone
| **Heltec V4** | Standard Output | 10 dBm | 22 dBm | |
| | High Output | 22 dBm | 28 dBm | |
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### 7.8. Q: How do I use Ethernet with a RAK4631?
**A:**
MeshCore supports Ethernet on RAK4631 boards using the [RAK13800](https://docs.rakwireless.com/product-categories/wisblock/rak13800/datasheet/) WisBlock Ethernet module (based on the W5100S chip).
**Hardware required:**
- RAK4631 WisBlock Core
- RAK19007 or RAK19018 WisBlock Base Board (with an available IO slot)
- RAK13800 WisBlock Ethernet module
- Ethernet cable connected to a network with a DHCP server
**Firmware:**
Flash one of the Ethernet-enabled firmware variants:
- `RAK_4631_repeater_eth` - Repeater with Ethernet CLI access
- `RAK_4631_room_server_eth` - Room server with Ethernet CLI access
- `RAK_4631_companion_radio_eth` - Companion radio over Ethernet (replaces BLE)
**Connecting:**
- The device obtains an IP address via DHCP automatically on boot.
- For repeaters and room servers, connect to the device on TCP port 5000 using any TCP client (e.g. `nc <ip> 5000` or PuTTY in raw mode). This gives you the same CLI available over serial/USB.
- For companion radio firmware, the Ethernet interface replaces BLE as the transport to companion apps.
- Use the `eth` CLI command to check connection status and see the assigned IP address.
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