Maker Factory HC-05 User Manual page 3

4. Overview
This module allows you to integrate a microcontroller into a Bluetooth
Pin Layout
frequency ............................................................................................................ 2.45 GHz
asynchronous speed ....................................................................................... max. 2.1 Mbps
security ........................................................................................................ authentication
profile ................................................................................................. Bluetooth Serial Port
power supply ........................................................................................................ +3.3 VDC
working temperature .......................................................................................... max. 60 °C
V. 01 – 07/11/2017
MAKEVMA302
Arduino ®
5 V
GND
D11
D10
KEY
VCC
GND
TXD
RXD
STATE
® network.
if brought high before power is applied, forces AT
Command Setup Mode; blinks slowly (2 seconds)
power supply
transmit serial data
receive serial data
tells if connected or not
3
MAKEVMA302
VCC
GND
Rx
Tx
ground