## Arduino

Arduino Project Hub hosts community hardware, electronics, and IoT projects. An approved project write-up can link to your own relevant tutorial or documentation, but this is a reviewed technical contribution rather than a general website listing.

- URL: https://www.arduino.cc/
- Guide: https://backlinkbadger.com/provider/arduino/
- Link type: nofollow
- Free option: yes
- Backlink value: 1/100
- Spam score: 2/100
- Difficulty: 60/100
- Estimated time: 90 minutes
- Requirements: Arduino account, Original Arduino-compatible project, Clear project photos, Components and software list, Useful instructions and code, Relevant tutorial or documentation URL

Use **Arduino Project Hub** if you have an actual electronics or hardware project to share. The useful link goes inside the project's **Project description**, pointing to relevant instructions, source material, or documentation on your own site. This is not a quick profile-link opportunity for unrelated businesses.

### Submit a project with a useful documentation link

1. Read the [Project Hub content guidelines](https://projecthub.arduino.cc/guidelines). Hardware, electronics, and IoT write-ups fit; advertisements, plagiarism, and projects that are simply a sales pitch do not. If you sell a component, document how to use it in a real project instead of submitting a product advertisement.
2. Open [Project Hub](https://projecthub.arduino.cc/) and choose **+ NEW PROJECT**. Sign in with an Arduino account or use **Create your account** on the sign-in screen.
3. Prepare an accurate title, short introduction, clear cover photo, skill level, and relevant tags. Fill in the components and software actually used. The guidelines prohibit URLs in the title and introduction, so do not try to squeeze your website into those fields.
4. Write a useful **Project description** with the build instructions. Add your relevant tutorial or documentation URL there and make it clickable. Include enough explanation, wiring information, and code for the Project Hub contribution to stand on its own; a link alone is not a project.

The public [Arduino Nano traffic-light project](https://projecthub.arduino.cc/diyables/arduino-nano-traffic-light-fa46e4) demonstrates this placement: its project description links to a fuller tutorial on `newbiely.com`, alongside wiring instructions and downloadable code.

[Image: Arduino Project Hub project description showing clickable newbiely.com tutorial links alongside wiring instructions]

5. Submit the completed project for review. Arduino's [Project Hub FAQ](https://support.arduino.cc/hc/en-us/articles/6957796358556-About-Arduino-Project-Hub) says admins assess guideline compliance before publication. A submission that needs improvement can be returned as **Needs revision**; approval and turnaround are not guaranteed.
6. After publication, open the public project while signed out. Check that the documentation link is visible, clickable, and points to the correct page. Keep the tutorial and linked instructions up to date.

### What the link does—and does not—prove

The inspected `newbiely.com` links are direct anchors in the rendered browser page, with no `rel` attribute and no outbound tracking redirect. They look dofollow in that rendered view. However, the raw page response stores the project description in application data rather than exposing those links as ordinary HTML anchors; JavaScript turns them into clickable links.

For that reason, treat this as a **referral and project-documentation opportunity, not a verified clean dofollow SEO link**. The conservative backlink-value estimate reflects that rendering uncertainty, not Arduino's root-domain reputation. Other project sections can behave differently: the inspected [XGO-Duck project](https://projecthub.arduino.cc/luwudynamics/xgo-duck-a-robot-duck-that-learned-to-walk-2ee980) also exposes GitHub repository links, but that does not prove an arbitrary website link in a project description is present in raw HTML.

Project Hub is free to use. The time estimate assumes you already have a working project, photos, and code; it excludes building the hardware and waiting for admin review. Do not build a throwaway project solely for a backlink or copy another author's tutorial.