HC-08 Bluetooth 4.0 BLE Serial Port Module
The HC-08 is a Bluetooth Low Energy (BLE) 4.0 serial port module based on the CC2540 chipset, providing a simple UART interface for wireless data transfer to iOS and Android devices with low power consumption ideal for IoT projects.
Features
- Bluetooth 4.0 BLE protocol for low-power, short-range wireless communication, ideal for battery-operated IoT sensors and devices.
- UART TTL serial interface (3.3V logic) with configurable baud rates from 1200 to 115200 bps for easy integration with microcontrollers like Arduino, ESP32, or STM32.
- Based on the Texas Instruments CC2540 SoC with 256KB flash memory, supporting AT commands for flexible configuration of module parameters.
- Ultra-low sleep current as low as 0.4 µA (Mode 2) enables multi-year operation on a coin cell battery, perfect for remote sensing applications.
- Compact form factor (38x16x4 mm) and wide operating voltage range (2.0V to 3.6V) for embedding into space-constrained and low-voltage projects.
Out of stock
The HC-08 Bluetooth 4.0 BLE Serial Port Module is a cost-effective wireless transceiver designed for developers and makers needing reliable, low-energy data links. Built around the proven CC2540 system-on-chip (SoC) from Texas Instruments, it implements the Bluetooth Low Energy 4.0 standard, prioritizing minimal power draw over high data throughput. This makes it exceptionally suitable for Internet of Things (IoT) applications where devices must operate for extended periods on small batteries, transmitting small packets of sensor data.
Communication is handled via a straightforward 3.3V TTL UART interface, allowing seamless connection to most modern microcontrollers without requiring complex RF design knowledge. The module’s firmware supports a comprehensive set of AT commands, enabling runtime configuration of critical parameters such as device name, role (master/slave), serial baud rate, and pairing modes. With a reference range of up to 80 meters in open air and a maximum transmit power of 4 dBm, it provides a robust wireless link for indoor and outdoor deployments.
Additional Information
| Weight | 0.002 kg |
|---|---|
| Dimensions | 3.8 × 1.6 × 0.4 cm |















