Case study

SF900 ESP32 Dongle: implementing the SF900 controller radio protocol

SF900 ESP32 Dongle implements the SF900/SF2000 controller's 2.4 GHz XN297L radio protocol on an ESP32-S3 receiver. It presents controller input as USB HID or BLE HID and includes a separate USB Wi-Fi mode.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 2
Last commit: 2026-07-18
Language: C

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Requires an ESP32-S3 board, an XN297L radio and a USB-C OTG adapter for handheld use.
Prerequisites: Building the firmware requires PlatformIO.
License: MIT license; bundled third-party components retain their own licenses.

Cite

BibTeX

@misc{sf900-esp32-dongle-case,
  title = {{SF900 ESP32 Dongle: implementing the SF900 controller radio protocol}},
  howpublished = {\url{https://github.com/fernandoalves25/sf900-esp32-dongle}},
  url = {https://github.com/fernandoalves25/sf900-esp32-dongle},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sf900-esp32-dongle-case/}}
}

Plain text

SF900 ESP32 Dongle: implementing the SF900 controller radio protocol. https://github.com/fernandoalves25/sf900-esp32-dongle (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sf900-esp32-dongle-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · fernandoalves25/sf900-esp32-dongle · Revision f8b1436
docs/PROTOCOL.md GitHub · fernandoalves25/sf900-esp32-dongle · Revision f8b1436