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)
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