45 Multi-Function 2.4GHz RF Switching Module Receiver Panel

The module features built-in ID learning. Typically, you place the transmitter and receiver into a pairing mode, often by holding a button or applying a specific voltage to a learn pin. Once paired, the receiver will only respond to commands from that specific transmitter ID, ensuring secure operation. The learned ID is stored in non-volatile memory and retained after power loss. Consult any provided datasheet for the precise timing sequence or pin configuration required to initiate the learning process for your specific application.

Connect a stable DC power supply between 2.0V and 3.6V to the module's VCC and GND pins. The module's output can be configured for serial communication (TX/RX) or direct switch control, depending on your application. For switch control, the relevant output pins will go high or low based on received RF commands. Ensure your power source can provide sufficient current for the module's active state, though idle current is only 20µA. Always decouple the power supply with a capacitor close to the module for stable RF performance.

The specified 1000-meter range is an ideal maximum achieved in open, line-of-sight conditions with minimal RF interference. Real-world range is significantly affected by obstacles like walls, vegetation, and other 2.4GHz signals from Wi-Fi or Bluetooth. The module's +20 dBm output and -95 dBm sensitivity provide a strong link budget. To maximize range, ensure a clear Fresnel zone, mount the module with its PCB antenna oriented optimally, and avoid placing it near large metal objects or other noisy electronics that could degrade performance.