Specifications

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keyestudio

www.keyestudio.cc

Bluetooth Transmission Module for Arduino with Bottom hc-05

Master and Slave

Introduction:

Bluetooth transmission module can enable you to get rid of using cable

for a serial port device and realize wireless serial communication within

10 meters.

Using the module doesn't require knowing the complex Bluetooth bottom

protocol. A few simple steps can get you to enjoy the convenience of

wireless communication.

Bluetooth transmission module has only 4 AT command. Respectively are

communication testing, name changing, baud rate changing, matching

Summary of content (6 pages)

PAGE 1
keyestudio Bluetooth Transmission Module for Arduino with Bottom hc-05 Master and Slave Introduction: Bluetooth transmission module can enable you to get rid of using cable for a serial port device and realize wireless serial communication within 10 meters. Using the module doesn't require knowing the complex Bluetooth bottom protocol. A few simple steps can get you to enjoy the convenience of wireless communication. Bluetooth transmission module has only 4 AT command.
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keyestudio password changing. AT command must be set from TXD, RXD signal pins, not via Bluetooth channel. Device sending the AT command can be various types of MCU (for example, 51, avr, PIC, msp430, arm, etc.). It can also be a computer sending via serial port (PC serial port connected to MAX232 or USB serial port). Specification： 1. 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. 2.
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keyestudio guaranteed. 6. After paring, it can be used as 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. 7. Can access AT command to set parameters, and query information by pulling high pin 34. 8. Small size (3.57cm*1.
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keyestudio Connection Diagram: Sample Code： ************************************* int val; int ledpin=13; void setup() { Serial.begin(9600); pinMode(ledpin,OUTPUT); } void loop() { val=Serial.read(); www.keyestudio.
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keyestudio if(val=='a') { digitalWrite(ledpin,HIGH); delay(250); digitalWrite(ledpin,LOW); delay(250); Serial.println("keyestudio"); } } ************************************* www.keyestudio.
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keyestudio FCC WARNING This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.