This circuit gives you 4 independent wireless switch outputs.
By following the basic 433MHz RF module circuit diagram and using a robust library, you can add wireless functionality to almost any electronics project with minimal cost and complexity.
When data is high, relay activates.
The receiver is the sensitive partner in the relationship. It is strictly a 5V device.
Here is the standard described step-by-step: 433mhz Rf Module Circuit Diagram
A typical pair consists of two components:
The transmitter is a small, 3 or 4-pin module that requires a stable DC voltage to drive its SAW (Surface Acoustic Wave) resonator. 433MHz RF Tx-Rx Modules Work & Interface with Arduino This circuit gives you 4 independent wireless switch outputs
For a dedicated hardware solution without a microcontroller:
A 433MHz RF module circuit typically consists of two distinct parts: a transmitter (TX) that encodes and sends data, and a receiver (RX) that captures and decodes it. These modules utilize Amplitude Shift Keying (ASK) The receiver is the sensitive partner in the relationship
This is the most common implementation. We will use an Arduino Uno as the controlling brain for both ends. This setup assumes you are using the popular or RadioHead libraries, which handle the complex signal timing.
VCC ------------> 5V from Arduino DATA ------------> Digital Pin 11 (Arduino) GND ------------> Arduino GND