Elecrow
315M RF Controller Kit
A simple 315MHz wireless controller kit consisting of a 4-button RF keyfob remote and a matching receiver module. No programming or microcontroller is requir...
A simple 315MHz wireless controller kit consisting of a 4-button RF keyfob remote and a matching receiver module. No programming or microcontroller is required — power the receiver with 5V DC and press a button on the keyfob to activate the corresponding output pin.
Uses SC2273-L4 and SC2272-M4 encoder/decoder chips with AM (amplitude modulation). When a button is pressed, the corresponding receiver output goes HIGH; when released, it returns to LOW (momentary operation).
Key Features
- No Programming Required – Simple one-to-one link between keyfob and receiver
- 4 Independent Channels – Buttons A, B, C, D each activate a separate output pin
- Momentary Output – Output is HIGH while pressed, LOW when released
- 315MHz AM Modulation – SC2273/SC2272 encoder-decoder pair
Specifications
- Frequency – 315MHz
- Modulation – AM (amplitude modulation)
- Receiver Voltage – 5V DC
- Keyfob Battery – 12V DC
- Standby Current – 4.5mA
- Operating Temperature – -10°C to +70°C
Ideal For
- Simple wireless remote control projects
- Triggering relays, motors, or LEDs wirelessly
- Prototyping wireless control without programming
Package Contents
- 1× 4-Button RF Keyfob Remote (315MHz)
- 1× RF M4 Receiver Module
Jargon buster
Plain-language definitions for the technical terms used above.
- encoder
- A device attached to a motor or shaft that reports movement, such as rotation steps or position. In a pump system, an encoder can help measure or control how much the motor has turned, which affects how repeatable the watering amount can be.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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