This project visualizes 433 MHz gate remote signals using a CC1101 radio module connected to an FT232H board. By bypassing microcontrollers, the author uses a simple Python script and six jumper wires to scan and decode signals from a cheap Ali Express copy remote. The setup eliminates the need for flashing firmware, offering a direct USB-to-SPI bridge for easy radio communication.
The hardware includes an E07-M1101 D CC1101 module (~AU$3.40) and a CJMCU-232H board. Connections are straightforward: power (3.3V and GND) and SPI lines (CSN, SCK, MOSI, MISO) map directly to the FT232H's AD pins. The script, leveraging pyftdi, runs on Linux with Python 3 and provides a terminal-based interface for real-time signal analysis. It can capture Kee Loq remote presses and decode them using accompanying scripts.
Advantages over typical ESP32-based solutions include no firmware building and rapid iteration. The guide provides clear wiring diagrams, pin mappings, and installation steps, including udev rules for user-level hardware access. It's an accessible entry point for RF analysis, ideal for hobbyists exploring sub-GHz protocols without soldering or complex programming.
Source: Hacker News · Summarized by HeadlinesBriefing