# Falmec Nuvola 90: reconstructing a 433 MHz remote protocol

> Falmec Nuvola 90 remote research reconstructs the range hood's 433 MHz OOK control messages from captured signals. The documented 33-bit frame encodes fan speed and light state using 320 and 640 µs pulses; Python receiver tools decode captures, while Raspberry Pi and ATtiny85 transmitters send replacement commands.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/Kalmend/falmec_radio>
- Primary source: <https://github.com/Kalmend/falmec_radio/blob/efa48e2926d71d4e40a0e0672d7bbb40fdcb66b9/README.md>
- Catalog page: <https://awesomerea.org/resources/falmec-radio-case/>
- Record JSON: <https://awesomerea.org/resources/falmec-radio-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/falmec-radio-case/index.md)

## Requirements & limits

- **Prerequisites:** A Raspberry Pi running pigpiod and Python 3.10+ for the Python capture and transmitter tools.
- **Prerequisites:** An FS1000A or STX882 transmitter, or an MX-RM-5V receiver, for the corresponding hardware workflow.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/Kalmend/falmec_radio/blob/efa48e2926d71d4e40a0e0672d7bbb40fdcb66b9/README.md>
2. <https://github.com/Kalmend/falmec_radio/blob/efa48e2926d71d4e40a0e0672d7bbb40fdcb66b9/scripts/receiver/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.