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Product Name: FS100A 433MHz RF Transmitter & Receiver
The FS100A is a low-cost wireless RF module set operating at 433MHz, suitable for basic unidirectional wireless communication between two microcontrollers. It uses ASK (Amplitude Shift Keying) modulation and is ideal for hobbyists building remote controls, home automation, or wireless sensors. Despite its simplicity, the FS100A is capable of transmitting data up to 100 meters in open space when paired with a proper antenna.
Specifications:
| Frequency |
433.92 MHz |
| Modulation Type |
ASK (Amplitude Shift Keying) |
| Transmission Range |
Up to 100 meters (with antenna, line of sight) |
| Data Rate |
Up to 10 kbps |
| Transmitter Voltage |
3V to 12V DC |
| Receiver Voltage |
5V DC |
| Transmitter Current |
~10 mA (at 5V) |
| Receiver Current |
~4 mA (idle) |
| Receiver Sensitivity |
~ -105 dBm |
Pinout Configuration:
| Module |
Pin |
Function |
| Transmitter |
VCC |
Power Input (3–12V) |
| DATA |
Serial Data Input |
| GND |
Ground |
| ANT |
Optional antenna for longer range |
| Receiver |
VCC |
Power Input (5V) |
| DATA |
Serial Data Output |
| GND |
Ground |
| ANT |
Optional antenna for reception improvement |
How to Use:
Connect the **Data pin** of the transmitter to your microcontroller's digital output and supply appropriate voltage (usually 5V). On the receiver side, connect the **Data pin** to your MCU’s digital input. Use libraries like **RadioHead** or **VirtualWire** in Arduino IDE to send and receive data. Antennas (17cm wire) are strongly recommended on both modules to achieve optimal range.
Using Purposes:
- Wireless control systems (garage doors, alarms, etc.)
- Simple one-way communication between MCUs
- Remote sensor data transmission
- DIY home automation switches
- Wireless signal triggering projects
Please Note: Product information has been collected from various sources across the web. While we have made every effort to ensure the accuracy of the information presented, slight variations may still occur. Kindly verify the specifications and compatibility before using this product.
