Green PCB 433MHz RF wireless transmitter FS1000A and receiver modules for Arduino microcontrollers
433MHz RF Transmitter & Receiver Kit for Arduino
433MHz RF Transmitter & Receiver Kit for Arduino
Green PCB 433MHz RF wireless transmitter FS1000A and receiver modules for Arduino microcontrollers
433MHz RF Transmitter & Receiver Kit for Arduino
433MHz RF Transmitter & Receiver Kit for Arduino

433MHz RF Transmitter & Receiver Kit for Arduino

Modules
ARD685
€2.95
Last items in stock
Immediate Dispatch
FS1000A 433MHz RF Transmitter & Receiver Kit — operating frequency 433.92 MHz, TX voltage 3V–12V, RX voltage 5V DC. ASK/OOK modulation for simple one-way wireless data transmission with Arduino, ESP32, and Raspberry Pi.

 

The 433MHz RF Transmitter & Receiver Kit (FS1000A transmitter + companion receiver) lets you add low-cost wireless connectivity to any microcontroller project. Operating at 433.92 MHz with ASK/OOK modulation, the pair handles one-way serial data transmission — no complex protocol stack required — making it the go-to starting point for makers, students, and hobbyists exploring wireless communication with Arduino, ESP32, or Raspberry Pi.

Key Features

  • 433.92 MHz ISM Band: Uses the globally licence-free 433 MHz band → no permits needed for hobby and educational use.
  • ASK/OOK Modulation: Simple amplitude-based encoding → easy to drive directly from a digital GPIO pin without external circuitry.
  • Wide TX Supply Range (3V–12V): Higher supply voltage directly increases transmission range → flexible for battery-powered or mains-regulated designs.
  • Fixed RX Supply (5V DC): Receiver operates at standard 5V logic → plug-and-play with Arduino UNO/Nano without a level shifter.
  • One-Way Serial Transmission: Ideal for simple sensor-to-controller or remote-control applications → minimal code overhead using the popular VirtualWire / RadioHead library.
  • Compact Module Format: Both transmitter and receiver ship as ready-to-use PCB modules → no soldering of discrete components required.

Pinout & Wiring

Transmitter (FS1000A) — 3 pins:

PinSymbolDescription
1VCCSupply voltage 3V–12V DC
2DATASerial data input from microcontroller GPIO
3GNDGround

Receiver — 4 pins:

PinSymbolDescription
1VCC5V DC supply
2DATASerial data output to microcontroller GPIO (two pads, internally connected)
3DATASerial data output (duplicate pad)
4GNDGround

Wiring note: Connect a 17 cm wire antenna to the ANT pad on both modules to maximise range. Use the RadioHead ASK library on Arduino for reliable packet transmission.

Compatibility

  • Arduino UNO / Nano / Mega (5V): Direct connection — TX can be powered from the 5V pin; RX DATA output is 5V logic compatible.
  • ESP32 / ESP8266 (3.3V logic): TX can be powered from 3.3V (reduced range); RX DATA output at 5V may require a level shifter to protect 3.3V GPIO inputs.
  • Raspberry Pi (3.3V GPIO): Same consideration as ESP32 — use a voltage divider or level shifter on the RX DATA line.

Typical Applications

  • DIY home automation: Wireless sensor nodes sending temperature, humidity, or door-open alerts to a central Arduino controller.
  • Remote control systems: Build your own RF remote for lights, relays, or motors without Wi-Fi infrastructure.
  • Security & alarm systems: Low-power PIR or reed-switch transmitter nodes reporting to a base-station receiver.
  • Data logging: Outdoor sensor units transmitting readings back to an indoor logger without running cables.
  • Learning RF communication: Ideal first RF project for students studying embedded systems or IoT fundamentals.

Technical Specifications

ParameterTransmitter (FS1000A)Receiver
InterfaceSerial / GPIOSerial / GPIO
Operating Frequency433.92 MHz433.92 MHz
ModulationASK / OOKASK / OOK
Operating Voltage3V – 12V DC5V DC
Transmission ModeOne-way serialOne-way serial
BrandOEM
MPNN/A
EANN/A

FAQ

Q: Do I need a library to use this kit with Arduino?
A: Yes — the RadioHead ASK library (or legacy VirtualWire) handles encoding, timing, and basic error checking. Both are free and available via the Arduino Library Manager.

Q: Can I increase the range?
A: Yes — powering the transmitter at a higher voltage (up to 12V) increases output power and therefore range. Adding a 17 cm straight-wire antenna to both modules also significantly improves performance.

Package Contents: 1× FS1000A RF Transmitter module, 1× RF Receiver module.

⚠ Note: The 433 MHz band is shared with many other devices (garage openers, weather stations, etc.). For reliable communication in noisy environments, implement packet checksums in your firmware. This module supports one-way communication only — it is not a transceiver.
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