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433MHz RF Transmitter and Receiver
SKU: ARD-0138-L01
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Short Description
433MHz RF transmitter and receiver modules are inexpensive, low-power components for short-range wireless communication, commonly used in hobby electronics with Arduino/Raspberry Pi for simple remote controls, home automation, and sensor data, operating via ASK/OOK (Amplitude Shift Keying) for basic data transfer, with range dependent on antennas, environment, and data speed.
They typically have simple three-pin (VCC, GND, Data) transmitters and four-pin (VCC, GND, Data Out) receivers, offering easy implementation for basic remote switching and telemetry.
Buy currently uses Select Automation shop pricing and checkout.
Specifications:
Transmitter: Takes digital data (from a microcontroller), encodes it using Amplitude Shift Keying (ASK/OOK), and sends it as radio waves at 433MHz.
Receiver: Captures the 433MHz radio waves, demodulates the signal, and outputs the original digital data (usually 0s and 1s) for a microcontroller to read.
Key Features & Components
Frequency: Operates in the unlicensed 433MHz band (around 433.92MHz).
Modulation: Typically uses ASK (Amplitude Shift Keying) or OOK (On-Off Keying).
Microcontroller Friendly: Easily interfaces with Arduino, Raspberry Pi, and similar boards via simple data pins.
Antenna: Essential for range; simple wires or dedicated antennas improve performance.
Range: Varies significantly, from a few meters to over 90m with good setups, influenced by antenna, obstacles, and interference.