433MHz RF Link Kit

Overview

This 433 MHz RF link kit includes a transmitter and a receiver, commonly used for remote control applications.

Features

• Frequency: 433 MHz
• Modulation: ASK
• Receiver Data Output: High - 1/2 Vcc, Low - 0.7 V
• Transmitter Input Voltage: 3-12 V (higher voltage increases range)

Usage

The typical connection is as follows: MCU -> Encoder -> Transmitter ------ Receiver -> Decoder -> MCU.

The PT2272 (Encoder) and PT2262 (Decoder) chips are optional. They serve to:

• avoid interference when multiple RF links operate in the same area
• isolate signal disturbances.

You can also handle encoding and decoding directly within the microcontrollers at both ends. If there are no other 433 MHz devices nearby, the module can be used as a simple wireless link.