SKU 2048Sensors & Modules
RF 433MHz Wireless Transmitter and Receiver Module for Arduino & IoT Projects
₹169
01 — About
What it does
The RF 433MHz Wireless Transmitter and Receiver Module for Arduino & IoT Projects enables low-cost wireless communication between microcontrollers. The transmitter sends data while the receiver decodes it, making it ideal for remote control, wireless sensors, and IoT connectivity.
Key features
- 433MHz ISM band operation (no license required)
- Low-cost wireless communication solution
- Transmitter + receiver pair included
- Simple data transmission via ASK/OOK modulation
- Works with any microcontroller (Arduino, ESP, Raspberry Pi)
- Compact modules for easy integration
- Low power consumption suitable for battery operation
Good to know
- No built-in encryption – not for sensitive data without additional security
- Range affected by obstacles, walls, and interference
- Use VirtualWire or RadioHead library for reliable communication
- Quartz crystal variants more stable than LC oscillator versions
- Keep antenna away from metal objects for best range
- Add 17cm straight wire antenna to both TX and RX
02 — Datasheet
Specifications
- Frequency
- 433 MHz
- Modulation
- ASK / OOK
- Operating Voltage (TX)
- 3V – 12V
- Operating Voltage (RX)
- 3.3V – 5V
- Range
- 20-200 meters (line of sight)
- Data Rate
- Up to 4Kbps
- Antenna
- 17cm wire (quarter-wave)
- Interface
- Digital (TX: data pin, RX: data pin)