Bluetooth Transmission Module Baseboard hc-05 Master Slave

Upgrade your project with the Bluetooth Transmission Module Baseboard HC-05 Master Slave, a versatile module that enables wireless communication and connectivity. Whether you're working on remote control systems, IoT projects, or other applications, this module provides a reliable and user-friendly solution for integrating Bluetooth capabilities into your projects.

Specifications:

• Core module uses HC-05 slave module, pins include VCC, GND, TXD, RXD, KEY, Bluetooth state pin (STATE), output low if not connected, high if connected.
• LED indicates the connection status of Bluetooth; quick flash means no connectivity, slow flash means entering AT mode, double flash means Bluetooth is connected and the port is open.
• Bottom plate has anti-reverse diode, with 3.3V LDO. Input volt is 3.6~6V; current about 30mA with no pairing, current about 10mA after pairing. Input volt should be within 7V!
• Pin level is 3.3V. It can be directly connected with various MCUs (51, AVR, PIC, ARM, MSP43 etc.), also 5V MCUs, no need for MAX232 and cannot be connected with MAX232!
• In an open area, the effective range is 10m (power level is CLASS 2). It’s possible to be more than 10m, but the connecting quality cannot be guaranteed.
• After pairing, it can be used as a full-duplex serial port. No need for knowing any Bluetooth protocol. It supports 8-bit data bits, 1 stop bit; can set odd-even check communication format, which is the most common communication format; do not support other formats.
• Can access AT command to set parameters and query information by pulling high pin 34.
• Small size (3.57cm*1.52cm), SMD production, ensures quality; with transparent heat-shrinkable film for dustproof and anti-static function.
• Use AT-command to switch from master or slave mode and to connect to specific devices.
• Support standard baud rate of 4800bps~1382400bps.

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