ks0135 keyestudio EASY plug Bluetooth Module
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Introduction

This Bluetooth module can easily achieve serial wireless data transmission. Its operating frequency is among the most popular 2.4GHz ISM frequency band (i.e. Industrial, scientific and medical). It adopts Bluetooth 2.1+EDR standard. In Bluetooth 2.1, signal transmit time of different devices stands at a 0.5 seconds interval so that the workload of bluetooth chip can be reduced substantially and more sleeping time can be saved for bluetooth.

Note: this module needs to be used together with EASY plug control board.

Specification

Interface: Easy plug

Bluetooth protocol: Bluetooth 2.1+ EDR standard

USB protocol: USB v1.1/2.0

Operating frequency: 2.4GHz ISM frequency band

Modulation mode: Gauss frequency Shift Keying

Transmit power: ≤ 4dBm, second stage

Sensitivity: ≤-84dBm at 0.1% Bit Error Rate

Transmission speed: 2.1Mbps(Max)/160 kbps(Asynchronous); 1Mbps/1Mbps(Synchronous)

Safety feature: Authentication and encryption

Supported configuration: Bluetooth serial port (major and minor)

Supply Voltage: +3.3 VDC 50mA

Operating temperature: -20 to 55℃

Size: 49*15.4mm

Weight: 6g


Connection Diagram

Sample Code

int val;

int ledpin=13;

void setup()

{

Serial.begin(9600);

pinMode(ledpin,OUTPUT);

} void loop()

{ val=Serial.read();

if(val=='a')

{

digitalWrite(ledpin,HIGH);

delay(250);

digitalWrite(ledpin,LOW);

delay(250);

Serial.println("Hello keyes!");

}}

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