JDY 31B Bluetooth Module

The JDY-31B Bluetooth Module is a versatile wireless communication solution designed for seamless serial data transmission between electronic devices. Based on Bluetooth 3.0 SPP (Serial Port Profile) technology, this module enables wireless connectivity for your projects, making it perfect for replacing wired serial connections. It operates in the 2.4 GHz ISM band with GFSK modulation and offers a maximum transmission power of 8 dB, providing reliable communication up to 30 meters. The module supports data transmission across multiple platforms including Windows, Linux, and Android devices. With its low power consumption and wide operating voltage range (1.8-3.6V, with 3.3V recommended), it's ideal for battery-powered applications. The JDY-31B is fully compatible with popular HC-05/06 modules, making it an excellent replacement option. Its compact 27 x 13 x 2 mm footprint and 6-pin UART interface make it easy to integrate into various projects such as IoT devices, robotics, home automation systems, and wireless data logging applications. Whether you're building a remote control system, wireless sensor network, or simply need to eliminate cables in your project, the JDY-31B offers a reliable, cost-effective solution with straightforward implementation.