HC-08 Bluetooth 4.0 BLE Module with 34 Castellated Pins for UART Communication

Information about this module is generated with the help of AI. The description may be incomplete, inaccurate, or subject to change.
The HC-08 is a compact Bluetooth 4.0 Low Energy BLE module designed for direct mounting onto a printed circuit board using 26 castellated pins. The module provides wireless serial communication through a UART interface and is suitable for Arduino, STM32, ESP32, and other microcontrollers with serial communication support.

The integrated BLE technology offers low power consumption, making the module ideal for battery-powered devices, IoT applications, wireless sensors, control systems, and embedded products. Communication uses 3.3 V TTL logic levels, and the module can be configured using AT commands to change the device name, baud rate, and other settings.

The HC-08 features an integrated PCB antenna, an LED status output, and a reset input for restarting the module. Several PIO pins are available for internal functions and control. Its compact design with castellated pins makes it easy to integrate into custom electronic designs and production PCBs.

Unknown function of the castellated pins

Facts.
Bluetooth Version: Bluetooth 4.0 Low Energy BLE
Communication: UART Serial TTL
Logic Level: 3.3 V TTL
Operating Voltage: 2.0 to 3.6 V DC
Recommended Supply Voltage: 3.3 V DC
Minimum Supply Current: 100 mA
Mounting: 26 Castellated Pins
Antenna: Integrated PCB Antenna
LED: Yes, Status Indication
AT Commands: Yes
Connection: Wireless Bluetooth BLE
Applications: Arduino, STM32, ESP32, IoT, Sensors and Control Systems

Included.
1 pc module.

About the product.
Weight: approx 5 gram.
Contact us if you have questions at info@pchbutik.se
Article no: 3554
Remaining stock quantity can be found under the Product details tab.
In our range since: 2026-08-03

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