ethercat-setup

A setup guide for connecting a Jetson computer to EtherCAT devices, an industrial communication system for controllers and equipment. It uses the EtherLab EtherCAT Master driver and includes a motor-control example.

In plain words
What is it for?
Use it to connect a Jetson to EtherCAT slave devices, scan them, and try motor control with a MyActuator X4.
Why use it?
It turns a hardware connection into a configured EtherCAT setup by covering the driver, device scanning, and required checks.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/seeed-projects/seeed-jetson-developtool/ethercat-setup
Any agent
npx skills add Seeed-Projects/Seeed-Jetson-DevelopTool --skill ethercat-setup
Clone the repo
git clone --depth 1 https://github.com/Seeed-Projects/Seeed-Jetson-DevelopTool

Made for: Claude Code, Codex.

Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,240 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00065 $0.01240
Opus 5 $0.00032 $0.00620
Sonnet 5 $0.00013 $0.00248
Haiku 4.5 $0.00006 $0.00124

Measured 2d ago against content hash 09337623b67c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

ethercat-setup scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt update
seeed_jetson_develop/skills/openclaw/ethercat-setup/SKILL.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EtherCAT Setup on Jetson with EtherLab Master


Execution model

Run one phase at a time. After each phase:

  • Relay all command output to the user.
  • If output contains [STOP] → stop immediately, consult the failure decision tree below.
  • If output ends with [OK] → tell the user "Phase N complete" and proceed to the next phase.

Prerequisites

Requirement Details
Hardware reComputer Robotics J401 (or compatible Jetson) as EtherCAT master
Slave device EtherCAT slave (e.g. MyActuator X4) with external power
JetPack 6.2 (L4T 36.4.3)
Cable Ethernet cable + adapter if slave uses 4-pin interface (Tx+, Tx–, Rx+, Rx–)

Most slave devices require additional external power after physical Ethernet connection.


Phase 1 — Hardware connection (~2 min)

Connect the Jetson Ethernet interface directly to the EtherCAT slave device. If the slave uses a 4-pin interface, use an Ethernet-to-4-pin adapter.

Identify the Ethernet interface name:

ifconfig

Note the interface name (e.g. eno1). This will be used in subsequent configuration.

[OK] — proceed to Phase 2.


Phase 2 — Install EtherCAT driver (~5–10 min)

Install build dependencies and compile the EtherLab EtherCAT master:

sudo apt update
sudo apt install build-essential cmake libtool autoconf automake
git clone https://gitlab.com/etherlab.org/ethercat.git
cd ethercat
./bootstrap
./configure --sysconfdir=/etc
make all modules
sudo make modules_install install
sudo depmod -a

Verify the kernel modules are loaded:

sudo lsmod | grep "ec_"

Expected: ec_master and ec_generic modules listed.

[OK] — proceed to Phase 3. [STOP] if modules not found.


Phase 3 — Configure EtherCAT master (~2 min)

Edit the configuration file:

sudo vim /etc/ethercat.conf

Set these parameters (replace eno1 with your interface name):

MASTER0_DEVICE="eno1"
DEVICE_MODULES="generic"

Read the full file on GitHub · 192 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 192 lines · 65 tokens per session scan B 09337623b67c

Subscribe to this mod's changes

ethercat-setup is a skill published in the GitHub repository Seeed-Projects/Seeed-Jetson-DevelopTool (54 stars, last pushed 2d ago), licensed MIT. It adds 65 tokens to every session and 1,240 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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