SYN480R 433MHz ASK Wireless Receiver Module with 4-Pin Interface

The SYN480R is a compact 433MHz RF receiver module built around the SYN480R single-chip ASK/OOK receiver IC in an SOP-8 package. The module operates across a 300MHz to 450MHz frequency range and is optimized for the 433.92MHz band commonly used in remote controls, wireless sensors, and home automation systems. Unlike super-regenerative designs, this superheterodyne receiver provides stable sensitivity and selectivity, achieving a maximum receiving sensitivity of -107dBm with a data rate of up to 10Kbps. The board exposes four pins—VCC, GND, DAT, and ANT—making it straightforward to connect to Arduino, ESP32, STM32, or any microcontroller with a digital input. The DAT pin outputs demodulated digital data, so no external decoder or register configuration is required. Operating from a 3.3V to 5.5V DC supply, the SYN480R receiver module is compatible with both 3.3V and 5V logic systems. It does not include a built-in antenna; a 17cm wire soldered to the ANT pad serves as an effective quarter-wave antenna for 433MHz. The module measures 17mm by 11mm and operates over a temperature range of -30°C to +85°C, making it suitable for indoor and sheltered outdoor installations. Common applications include wireless remote controls, garage door openers, alarm systems, data loggers, and IoT sensor nodes that require a low-cost, reliable RF receiving front end.