R04B 315MHz Wireless Receiver Module

Description

The R04B 315MHz Wireless Receiver Module is a dedicated RF front-end designed for simplex communication in remote control and telemetry applications. Its superheterodyne receiver architecture is tuned to the 315MHz industrial, scientific, and medical (ISM) band, providing a stable link resistant to Wi-Fi and Bluetooth interference. The module outputs clean, decoded CMOS-level signals for four discrete channels, directly compatible with microcontroller GPIO pins for simplified firmware integration.

Engineered for low-power operation, the module draws minimal current in its idle state, making it suitable for battery-operated sensor nodes and intermittent data collection systems. Its robust construction and wide operating temperature range support deployments in diverse environments, from indoor smart home setups to basic industrial monitoring. The module serves as a reliable wireless ingress point for systems requiring simple, cost-effective command and control.