HC-05 – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 30 Nov 2025 17:51:17 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp HC-05 – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 HC-05 Bluetooth Module https://hamtechtechnologies.com/product/hc-05-bluetooth-module/ https://hamtechtechnologies.com/product/hc-05-bluetooth-module/#respond Thu, 20 Nov 2025 19:51:26 +0000 https://hamtechtechnologies.com/index.php/product/hc-05-bluetooth-module/ master and slave modes, allowing wireless UART communication between microcontrollers and devices like smartphones, tablets, or PCs.]]> The HC-05 Bluetooth Module is a versatile and widely used serial communication module.
Unlike the HC-06, it can operate as master or slave, making it suitable for both point-to-point and master-slave Bluetooth applications.

It communicates via UART (TX/RX) and is compatible with Arduino, ESP32, ESP8266, and Raspberry Pi, enabling wireless control, sensor data transmission, and remote debugging.
HC-05 is ideal for robotics, IoT, home automation, and wireless serial communication projects.

Key Features

  • Bluetooth 2.0 + EDR serial module

  • Operates in master or slave mode

  • UART interface (TX, RX)

  • Communication range up to 10 meters

  • Compatible with 3.3V – 5V logic levels

  • Easy integration with Arduino, ESP32, ESP8266, and Raspberry Pi

  • Low power consumption and compact design

Specifications

Feature Details
Operating Voltage 3.3V – 5V DC
Communication Interface UART (TX/RX)
Baud Rate Default 9600 bps (configurable via AT commands)
Bluetooth Version 2.0 + EDR
Range Up to 10 meters
Logic Levels 3.3V / 5V compatible
Current Consumption ~30 mA
Dimensions 36 × 15 mm (approx.)

Applications

  • Wireless serial communication between microcontrollers and PCs

  • Remote-controlled robotics and IoT projects

  • Home automation and smart devices

  • Serial debugging and monitoring

  • Sensor data transmission to mobile apps

  • Educational and DIY electronics projects

Compatible Boards / Circuits

  • Arduino (Uno, Nano, Mega)

  • ESP32 / ESP8266

  • Raspberry Pi

  • UART-enabled devices for wireless serial communication

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