A simple 433 MHz RF wireless switch set that transmits digital signals between a transmitter and receiver module. Based on Gravity interface connectors, it works with any microcontroller that can read and write digital signals — no complex AT commands or pairing protocols required.

The transmitter supports 15 button states, and the receiver offers multiple working modes including inching, latching, self-locking, and interlocking. The system supports one-to-many and many-to-one configurations with a pairing function on the receiver.

Key Features

• 433 MHz RF Communication – Strong wall penetration, no Wi-Fi or Bluetooth required
• 15 Button States – Multiple control signals from a single transmitter
• Pairing Function – Receiver supports one-to-many and many-to-one setups
• Multiple Modes – Inching, latching, self-locking, and interlocking
• Ultra-Low Standby Power – Transmitter standby current less than 10 µA at 5 V
• Working Voltage – 3.3 V to 5.0 V DC
• Indoor Range – Approximately 15 metres

Specifications

• Transmitter Current – 10 mA active, <10 µA standby (at 5 V)
• Receiver Current – 6 mA active, 3 mA standby (at 5 V)
• Frequency – 433 MHz
• Interface – Digital (Gravity connector)
• Transmitter Size – 47 × 32 mm
• Receiver Size – 37 × 32 mm

Ideal For

• Remote control projects
• Wireless doorbells
• Upgrading wired buttons to wireless
• Wireless signal transmission between devices

Package Contents

• 1× Gravity Digital Wireless Switch (transmitter and receiver)
• 1× Gravity Digital Sensor Cable

Resources

• Wiki Documentation
• Schematic (PDF)
• Dimensions (PDF)