Bluetooth Serial Module Serial Pass-through Module Wireless HC05 (HC-05 Master/Slave mode)

100% Brand New.

Size: 37.3mm x 15.5mm x 6mm (L x W x H) (Approx)

It is HC-05 Bluetooth module.

Operating voltage: 3.3V

Working current: matching for 30 MA, matching the communication for 8 MA.

Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.

Potter default rate of 9600, the user can be set up.

With computer and Bluetooth, Bluetooth adapter, PDA, seamless connection equipment.

Dormancy current: no dormancy.

input power supply 3.3~6V, Prohibit more than 7V.

Commercial Series: Bluetooth module board Series

With LED indicator light, use 150mA and 3.3V regulation chip.

With VCC, GND, TXD, RXD foot for the Bluetooth

With "Re-search" button (ON/OFF/WAKE foot for it , external MCU out input "High level" can control module to re-search)

Compatible with Bluetooth master module", slave module" or master-slave (whole) module.

Allows your device to both send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer.

No "Automatically prevent power supply peversing func", so please correctly connect power supply

การต่อวงจรสำหรับ uno

5v to vcc on bluetooth module

gnd to gnd on bluetooth module

pin d10 to txd on bluetooth module

pin d11 to rxd on bluetooth module

code สำหรับ nano

code สำหรับ uno

ข้อมูลเพิ่มเติม : https://www.instructables.com/id/Arduino-Bluetooth-Master-and-Slave-Using-Any-HC-05/