What it is
The ShillehTek 433MHz RF Wireless Transmitter Receiver Link Kit for Arduino is a compact TX/RX module pair (small square transmitter + long rectangular receiver) for sending simple text and sensor data over a short-to-medium range wireless link—popular for remote controls, weather stations, and alarm systems using VirtualWire or RadioHead libraries.
Pins
Pin names can vary by module revision. Refer to the silkscreen labels on each board/module and the listing photos for exact pin names, then connect power/ground and a single digital data pin to your Arduino (or other microcontroller) per your library’s wiring guide.
Technical Specifications
| Item | Details |
|---|---|
| RF band | 433MHz |
| Modulation | ASK (as described in listing) |
| Included modules | Transmitter (TX) + Receiver (RX) pair |
| Typical use | Remote control, sensor/telemetry, alarm signaling |
| Arduino library compatibility | VirtualWire, RadioHead |
| Range (open air) | Up to 100m (environment dependent) |
| Antenna option | Extendable with ~17cm wire antenna (as described) |
| Power requirements | Varies by module revision (see listing photos) |
Frequently Asked Questions
How do I wire a 433MHz RF transmitter and receiver to an Arduino?
Use the silkscreen labels and listing photos to identify power, ground, and the data pin(s). In most Arduino tutorial code for VirtualWire or RadioHead, you connect power/ground and one digital data pin per module, then match the pin number in code.
What Arduino libraries work with this 433MHz RF Link Kit?
This kit is described as compatible with the VirtualWire and RadioHead libraries, which are commonly used to send simple messages and sensor readings over 433MHz ASK links.
What range can I expect from the ShillehTek 433MHz RF kit?
The listing notes up to 100m in open air. Real-world range depends heavily on antennas, placement, interference, and obstacles like walls.
Do I need an antenna for the 433MHz transmitter and receiver modules?
An antenna is recommended for better reliability and distance. The description mentions extending performance with an approximately 17cm wire antenna.
Can I use this 433MHz RF kit with Raspberry Pi or other microcontrollers?
These are simple RF modules that work via digital I/O, so they can be used with various microcontrollers. For Raspberry Pi, you’ll typically use a compatible RF/OOK library and follow the module’s pin labels; ensure your wiring matches your board’s logic levels and power requirements.