Easily add powerful and efficient wireless communication to your next project with the HC-08 Bluetooth 4.0 BLE Module. This module is perfect for hobbyists and professionals alike, offering a simple way to connect your microcontroller (like an Arduino, ESP32, or Raspberry Pi) to a smartphone, computer, or another HC-08 module.

Based on the Bluetooth 4.0 BLE (Bluetooth Low Energy) standard, it provides a stable connection over a long distance while consuming minimal power, making it ideal for battery-powered applications such as IoT devices, wearables, and remote sensors. The straightforward UART serial interface allows for quick integration into your existing projects with minimal coding.

Key Features:

• Bluetooth 4.0 BLE Technology: Utilizes the low-energy standard for power-efficient wireless data transmission.
• Long Transmission Range: Capable of communicating up to 80 meters in an open environment.
• Simple UART Interface: Easily communicates with virtually any microcontroller using standard serial (TX/RX) pins at a 3.3V TTL level.
• Ultra-Low Power Consumption: With a sleep current of just 0.4µA, it's perfect for long-lasting battery-powered projects.
• Integrated Onboard Antenna: The built-in PCB antenna provides excellent performance without the need for external components.
• Compact Size: The small form factor allows for easy integration into space-constrained designs.

Potential Applications:

• Internet of Things (IoT) devices
• Remote control systems
• Wireless data logging and acquisition
• Wearable technology
• Home automation

Technical Specifications:

• Model: HC-08
• Working Frequency: 2.4GHz
• Communication Interface: UART (3.3V TTL)
• Working Voltage: 2.0V - 3.6V (Module only)
• Transmission Distance: Up to 80 meters (open space)
• Transmit Power: +4dBm (Max)
• Receiver Sensitivity: -93dBm @ 1Mbps
• Air Data Rate: 1Mbps
• Currents:
  • Transmit: 31.6mA
  • Receive: 15.8mA
  • Sleep Mode: 0.4µA
• Module Size: 26.9mm x 13mm

Breakout Board Pinout:

• STATE: Connection status output (Low when not connected, High when connected)
• RXD: Serial Data Receive (Connect to microcontroller's TX)
• TXD: Serial Data Transmit (Connect to microcontroller's RX)
• GND: Ground
• VCC: Power Supply (The breakout board supports 3.2V - 6V)
• KEY: Used to enter AT command mode (Pull HIGH before powering on)