433Mhz RF Wireless Transmitter and Receiver Kit

This is a 433Mhz RF Radio Module. This RF module comprises an RF Transmitter and an RF Receiver. The transmitter/receiver (Tx/Rx) pair operates at a frequency of 433 MHz. An RF transmitter receives serial data and transmits it wirelessly through RF through its antenna connected at pin4. The transmission occurs at the rate of 1Kbps – 10Kbps. The transmitted data is received by an RF receiver operating at the same frequency as that of the transmitter.

This low-cost RF transmitter can be used to transmit signals up to 100 meters (the antenna design, working environment, and supply voltage will seriously impact the effective distance). It’s good for a short distance, battery power device development. 433 MHz is the operating frequency for the transmitter and receiver pair.

The 433MHz RF wireless transmitter and receiver kit is a versatile and widely used communication module that enables wireless data transmission and reception over short distances. These kits consist of two main components: a transmitter module and a receiver module, both operating at a frequency of 433 megahertz (MHz). With their compact size, low cost, and simple interface, these RF modules find applications in remote control systems, home automation, wireless sensors, and more.

The transmitter module serves as the source of wireless data transmission, while the receiver module captures and decodes the transmitted signals. Each module typically consists of an antenna, RF circuitry, and interface pins for connection to external devices such as microcontrollers, Arduino boards, or Raspberry Pi.

One of the key features of the 433MHz RF wireless transmitter and receiver kit is its ease of use and integration. The modules require minimal external components and can be easily connected to a wide range of microcontrollers and other electronic devices using simple wiring. This plug-and-play functionality makes them accessible to hobbyists, students, and DIY enthusiasts looking to incorporate wireless communication into their projects.

These RF modules utilize amplitude shift keying (ASK) modulation, a simple and robust technique for encoding digital data onto radio frequency signals. In ASK modulation, the presence or absence of a carrier signal at the transmitter’s frequency represents binary 1s and 0s, respectively. The receiver module detects these variations in signal strength and decodes them back into digital data.

One common application of the 433MHz RF transmitter and receiver kit is in remote control systems, where the transmitter module is used to send commands wirelessly to a remote device equipped with the receiver module. This setup is commonly found in remote-controlled toys, car alarms, garage door openers, and home automation systems. By pressing buttons on the transmitter, users can trigger specific actions or control devices from a distance.

Another use case for these RF modules is in wireless sensor networks, where they enable communication between sensor nodes and a central monitoring station. Sensor nodes equipped with transmitter modules can collect data such as temperature, humidity, or motion and transmit it wirelessly to a receiver module connected to a microcontroller or computer. This setup is commonly employed in home security systems, environmental monitoring, and industrial automation.

The 433MHz RF wireless transmitter and receiver kit offer several advantages over other wireless communication technologies, such as Bluetooth or Wi-Fi. Their low cost, low power consumption, and simplicity make them ideal for applications where long-range communication or high data rates are not required. Additionally, the 433MHz frequency band is widely available and unlicensed in many regions, reducing regulatory constraints and enabling easy deployment.

However, it’s important to note that the range and reliability of these RF modules may be affected by environmental factors such as obstacles, interference, and electromagnetic noise. Users should conduct range tests and implement appropriate error detection and correction mechanisms to ensure reliable communication in their applications.

In summary, the 433MHz RF wireless transmitter and receiver kit provides a convenient and cost-effective solution for wireless communication in DIY electronics projects, remote control systems, and wireless sensor networks. With their simple interface, versatility, and wide availability, these RF modules empower makers and enthusiasts to explore the possibilities of wireless communication and connectivity in their projects.

Features :

1. Wide input supply (2.5 V to 12V)
2. Easy to integrate (V+, GND, and Data)
3. The device is in deep sleep mode when the Data pin is grounded
4. Very small dimension.

Receiver Module specification

Operation voltage: DC5V
Static Current: 4MA
Receiver frequency: 433.92MHZ; 315 Mhz
Sensitivity：－105DB
Dimension：30*14*9mm
External Antenna：32CM signal wire spiral

Transmitter Module Specification

Operating voltage: 3-12V
Operating frequency: 433.92MHz; 315Mhz
Standby current: 0mA
Operating current :20-28mA
Transmission distance:> 500m (open to receiving plate sensitivity at-103dBm distance of more than)
Output Power: 16dBm (40mW)
Transfer rate: <10Kbps
Modulation mode: OOK (Amplitude Modulation)
Operating Temperature: -10 ℃ ~ +70 ℃
Size: 19 × 19 × 8mm

Package Includes :

1 x  433mHz Transmitter.

1 x  433mHz Receiver.