Holybro Remote ID Module
Series: Holybro Remote ID modules for drones
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
The Remote ID Module from Holybro (China) is a standard module for integrators that uses the open-source ArduRemoteID firmware and connects through CAN and a serial interface. It is a built-in module for mid-size multicopters and transmits over Bluetooth and Wi-Fi. The platform is an Espressif ESP32-C3.
It transmits on 2.4 GHz at 100 mW. The module has no GNSS receiver of its own; position and altitude come from the flight controller. The weight depends on the version: the bare board weighs 4 g, the module with CNC housing and antenna 27.5 g. The two figures must not be mixed; anyone looking at take-off weight calculates with the version being installed. FCC and CE are named as certifications.
For the EU a module must transmit to ASD-STAN EN 4709-002 and carry an EU declaration of conformity; Part 6 of the Annex to Delegated Regulation (EU) 2019/945 governs add-on modules for direct remote identification. The duty applies to classes C1, C2, C3, C5 and C6 and, in the specific category, since 01.01.2024. In the USA the integrator has to file the FAA declaration of conformity itself, because the module is supplied as a component.
When choosing, remember that a component is being sold: anyone who builds the module into a finished product or into an aircraft of their own is responsible for the conformity of the whole system. Keep the ArduRemoteID firmware current and check operator ID and serial number before flight. The connectors for CAN and serial are the mechanical wear points; the antenna must not sit under carbon fibre.
Technical data
Other data
| Built-in GNSS receiver | nocorrect |
|---|---|
| Certification | FCC, CEcorrect |
| Radio technology | Bluetooth + WLAN 2.4 GHz (Espressif ESP32-C3), 100 mWcorrect |
| Type | broadcast_modul_integriertcorrect |
| Weight (g) | 4correct |
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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