Gravity: Digital Wireless Receive Switch (433MHz)

The Gravity: Digital Wireless Receive Switch is a 433MHz RF module designed for simple, reliable digital signal transmission without complex configuration. With strong signal penetration through walls and ultra-low standby power, it is ideal for makers, students, and hobbyists building wireless controllers, doorbells, or remote switches.

Through-wall RF transmission

Operating on the 433MHz frequency band, this module provides strong signal penetration through obstacles without the setup complexity of Bluetooth AT commands or the high energy demands of Wi-Fi. It delivers a stable indoor communication range of up to 15 metres.

Flexible pairing and operating modes

The receiver supports one-to-many and many-to-one transmitter configurations, alongside 15 distinct transmitter button states. It includes built-in pairing functionality and supports inching, latching, self-locking, and interlocking working modes.

Low power consumption profile

Operating from 3.3V to 5.0V DC, the transmitter draws under 10uA on standby and 10mA during emission at 5V. The receiver operates with a 3mA standby current and draws 6mA during active reception.

Microcontroller compatibility

Featuring 4 digital interfaces, the module integrates directly with any microcontroller capable of reading and writing digital signals. It comes with a Gravity digital sensor cable for plug-and-play wiring.

Compact physical dimensions

The transmitter board measures 47x32mm while the receiver board measures 37x32mm. Both boards feature mounting holes with a 3.1mm inner diameter and 6.0mm outer diameter for secure project installation.

Downloads & documentation

• Product wiki (DFRobot)