Product Description
The HC-05 Slave Board is a highly reliable Bluetooth 2.0+EDR (Enhanced Data Rate) module designed to add wireless serial connectivity to any electronic system. While the standard HC-05 is famous for its Master/Slave dual-role capability, this specific Slave-Optimized Board is pre-configured and hardware-tuned for seamless “Peripheral” operation. It acts as a wireless serial bridge, allowing your hardware to “listen” for connections from smartphones, tablets, laptops, and Master Bluetooth modules.
This board is the go-to solution for developers who need a “set-and-forget” wireless link. Once paired, it functions exactly like a physical serial cable—data sent to the module’s RX pin is wirelessly transmitted to the paired device, and vice versa. Built on a high-quality breakout board with an integrated 3.3V regulator and status LED, it is fully compatible with Arduino, Raspberry Pi, and Industrial PLC systems using standard TTL serial logic.
Key Features
- Classic Bluetooth Compatibility: Fully supports Bluetooth V2.0 + EDR for maximum compatibility with older and modern Android and Windows devices.
- Transparent Data Transmission: Once a connection is established, the module enters a “Transparent Mode,” passing serial data back and forth without any protocol overhead.
- Optimized Slave Firmware: Pre-configured for high-stability slave operation, ensuring fast discovery and consistent pairing with master controllers.
- Broad Voltage Range: The onboard power management chip supports an input voltage of 3.6V to 6V, making it compatible with both 5V USB power and battery packs.
- Industrial Build Quality: Features a heavy-duty PCB with gold-plated pins and a clear status LED for visual diagnostics (Blinking = Searching; Steady/Double-Flash = Connected).
- Full Customization: Supports a wide range of AT commands to change the device name, pairing PIN, and baud rate to suit specific project or branding requirements.
