Product Description
Product Description
The DFRobot Gravity: Digital Wireless Switch Kit - Transmit and Receive is a 433MHz transmitter and receiver set for wireless transfer of simple digital signals. This TEL0140-1 variant is intended for applications where digital switching signals need to be transmitted between two points without a complex communication stack.
The module set is based on 433MHz RF communication and is compatible with controllers that can read or write digital signals. According to the supplier data, the stable transmission distance is up to 15m indoors. The operating voltage range is 3.3 to 5.0V DC. The transmitter is specified at less than 10uA standby current at 5V and 10mA active current at 5V, while the receiver is specified at 3mA standby current and 6mA active current at 5V.
Technical Features
- RF digital I/O module set with transmitter and receiver
- Operating frequency: 433MHz
- Input signal: digital
- Supply voltage: 3.3 to 5.0V DC
- Stable transmission distance: 15m indoors
- Number of interfaces: 4
- Transmitter standby current: <10uA at 5V
- Transmitter active current: 10mA at 5V
- Receiver standby current: 3mA at 5V
- Receiver active current: 6mA at 5V
- Transmitter dimensions: 47 × 32mm
- Receiver dimensions: 37 × 32mm
- Mounting hole size: 3.1mm inner diameter, 6.0mm outer diameter
Application Areas
This module set is suitable for wireless transmission of simple digital switching signals in embedded, IoT, and automation projects. Typical uses include remote switching, wireless doorbells, conversion of wired buttons to wireless buttons, signal transfer between controllers, and other low-complexity digital control links. The digital signal interface allows straightforward integration with microcontroller systems using GPIOs.
What's Included
- Gravity: Digital Wireless Transmit Switch x1
- Gravity: Digital Wireless Receive Switch x1
- Gravity: Digital Sensor Cable x2
