43 Wireless 2.4G RF Receiver Module 7-Channel I/O Control

Name: 43 Wireless 2.4G RF Receiver Module 7-Channel I/O Control
Brand: Generic
SKU: IOWC-1564
Price: 59.00 INR
Availability: OutOfStock

₹59.00 (Inclusive of all taxes)

Out of Stock

The 43 Wireless 2.4G RF Receiver Module is a standalone wireless switching module designed for direct I/O control without an external microcontroller. Operating on the 2.4GHz ISM band, it features built-in ID learning and a 100m line-of-sight range for reliable remote command execution.

Features

2.4GHz RF Receiver with 7-channel I/O control for direct switching applications.
Built-in ID learning and pairing ensures secure, interference-free operation with frequency hopping.
Onboard PCB antenna provides a reliable 100-meter line-of-sight communication range.
Ultra-low idle current of 24 µA and a wide 1.8V–3.6V supply range for battery-powered designs.
No external MCU required; operates as a standalone, plug-and-play wireless control interface.

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Description

The 43 Wireless 2.4G Switching Module is a highly integrated RF receiver designed for simplified wireless control systems. It operates within the 2400–2483.5 MHz frequency band, employing a robust architecture with -95 dBm receiving sensitivity and +5 dBm transmit power to achieve reliable communication up to 100 meters in open areas. Its built-in logic handles command decoding and I/O switching, eliminating the need for external microcontroller programming.

Engineered for low-power operation, the module draws only 24 µA in idle mode, making it suitable for battery-operated remote sensors and switches. The integrated PCB antenna simplifies design-in, while the wide operating voltage supports direct powering from coin cells or regulated Li-ion outputs. Its non-volatile memory retains learned remote IDs even after power loss, ensuring persistent system configuration across power cycles.

Key Features

Standalone 2.4GHz RF receiver module with 7-channel digital I/O control outputs.
Integrated ID learning and pairing function for secure, dedicated remote control links.
Frequency hopping spread spectrum (FHSS) technology provides robust anti-interference performance.
Ultra-low power design with 24 µA idle current, ideal for always-on, battery-powered applications.
Onboard PCB antenna with -3 dBi gain simplifies integration and reduces BOM cost.
Wide operating voltage range from 1.8V to 3.6V DC for flexible power supply options.
Fast response time under 0.2ms ensures immediate reaction to remote commands.
Industrial-grade operating temperature range from -40°C to +85°C.

Applications

Wireless remote control for smart lighting, fans, and appliance switches.
Industrial wireless control panels for machinery start/stop and safety interlocks.
Battery-powered remote sensors and data loggers with wireless trigger outputs.
DIY smart home automation projects requiring simple, reliable wireless switching.
Remote control toys, models, and hobbyist robotics.

Technical Specifications

Wireless Protocol	2.4GHz RF
Frequency Range	2400 – 2483.5 MHz
RF Transmit Power	+5 dBm (max)
Receiving Sensitivity	-95 dBm
Communication Distance	Up to 100 meters (line-of-sight)
Number of Channels	7 I/O Control Channels
Supply Voltage	1.8V – 3.6V DC
Idle Current	24 µA
Antenna Type	Integrated PCB Antenna
Antenna Gain	-3 dBi
Operating Temperature	-40°C to +85°C
Dimensions (LxW)	34 mm x 34 mm

Frequently Asked Questions

How do I pair a remote transmitter with this 2.4G receiver module?

The module features a built-in learning mode. Typically, you apply power, trigger a specific pin or sequence to enter learning mode, then press the button on your remote transmitter. The module's LED will indicate successful pairing. The learned ID is stored in non-volatile memory, so re-pairing is not needed after power loss. Consult the specific timing diagram for your remote's protocol for precise steps.

What is the purpose of the 7 I/O channels, and how are they controlled?

The seven I/O channels are digital output pins that can be toggled high or low based on commands from the paired remote. Each button on the remote can be mapped to control one or more of these outputs, allowing you to wire them directly to relays, LEDs, or other actuators. The module handles the RF decoding and output switching internally, so no microcontroller code is required to manage the basic on/off functions.

Can I power this module directly from a 3.3V MCU development board like an ESP32?

Yes, the module's wide voltage range of 1.8V to 3.6V makes it directly compatible with the 3.3V power rail from boards like the ESP32, Raspberry Pi Pico, or STM32. Ensure your board's 3.3V regulator can supply the module's operating current, which is higher during RF reception than the 24µA idle current. Connect the module's VCC and GND pins to your board's 3.3V and ground, and connect the desired I/O pins for control.

What is the effective range, and how can I improve it?

The specified 100-meter range is achievable in open, line-of-sight conditions with the integrated PCB antenna. Range reduces significantly through walls or in noisy RF environments. To improve range, ensure a clean 3.3V power supply, avoid placing the module near large metal objects, and orient the board for best antenna radiation. The module does not have an external antenna connector, so the PCB antenna's placement within your enclosure is critical for performance.