HC 08 4 pin Bluetooth Module without Reset Switch

HC 08 4 pin Bluetooth Module without Reset Switch

The HC-08 BLE module operates using Bluetooth 4.0 protocol and supports UART serial communication, providing an easy wireless link between an MCU (like Arduino, STM32, or ESP32) and a smartphone, tablet, or PC. It features a BLE (Bluetooth Low Energy) interface, which significantly reduces power consumption while maintaining stable, reliable communication — ideal for battery-powered devices.

Compared to older modules like the HC-05 and HC-06, the HC-08 offers higher data efficiency, lower latency, and improved range under BLE mode. It functions as a slave device, enabling seamless pairing with smartphones and computers that support BLE.

Its onboard PCB antenna ensures excellent wireless performance, while the absence of a baseplate keeps the size and power requirements minimal — suitable for direct soldering into embedded designs.

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Features:-

• Based on TI CC2540 chipset
• Bluetooth class 2
• Industrial level SPP Bluetooth module
• Integrated chip antenna
• Industrial temperature range from -40 to +85
• Support for on-board applications
• Modulation method: GFSK
• Transfer rate: Asynchronous: 6 KBPS Synchronous: KBPS

specifications:-