Specifications:

RF Transmitter Module

Operating Frequency: 433MHz
Modulation Type: ASK (Amplitude Shift Keying)
Operating Voltage: 3V to 12V DC
Typical Operating Voltage: 5V DC
Transmit Current: 10mA to 40mA
Data Transmission Rate: Up to 10 Kbps
Output Power: Approximately 10mW
Communication Range: Up to 100 meters (open area with antenna)
Antenna Type: External wire antenna recommended
Dimensions: Approximately 19mm × 19mm

RF Receiver Module

Operating Frequency: 433MHz
Receiver Type: Super Regenerative Receiver
Operating Voltage: 5V DC
Receive Current: Approximately 4mA to 6mA
Sensitivity: Up to -105 dBm
Data Reception Rate: Up to 10 Kbps
Communication Range: Up to 100 meters (open area with antenna)
Dimensions: Approximately 30mm × 14mm

1. What is a 433MHz RF Transmitter and Receiver Radio Module?

A 433MHz RF Transmitter and Receiver Module is a wireless communication system that operates in the 433MHz ISM frequency band. It allows data to be transmitted wirelessly between electronic devices and is commonly used in remote controls, home automation, and wireless sensor applications.

2. How does the 433MHz RF module work?

The transmitter module converts digital signals from a microcontroller into radio frequency signals and transmits them wirelessly. The receiver module captures these RF signals and converts them back into digital data that can be processed by a microcontroller such as Arduino, ESP32, or Raspberry Pi.

3. What is the communication range of a 433MHz RF module?

The communication range depends on factors such as antenna quality, supply voltage, and environmental conditions. In open areas, a typical 433MHz RF module can achieve a range of approximately 20 to 100 meters, while optimized setups with proper antennas can reach even greater distances.

4. Which microcontrollers are compatible with the 433MHz RF module?

The 433MHz RF Transmitter and Receiver Module can be used with a variety of microcontrollers including Arduino Uno, Nano, Mega, ESP8266, ESP32, STM32, Raspberry Pi, and other development boards that support digital input and output communication.

5. What are the common applications of 433MHz RF modules?

These modules are widely used in wireless remote controls, home automation systems, wireless sensor networks, security alarms, garage door openers, remote switching systems, weather stations, and other low-cost wireless communication projects.