View source for Ks0174 keyestudio HM-10 Bluetooth-4.0 V2


<br>
==Introduction==
keyestudio HM-10 Bluetooth-4.0 V2 adopts TI CC2541 chip, configuration space of 256Kb. <br>
It supports AT command. Users can modify working mode (master/slave), baud rate, device name, paring password, etc.  <br>
<br>[[File:ks0174.png|500px|frameless|thumb]]<br>

<br>
==Specification==
* Bluetooth protocol: Bluetooth Specification V4.0 BLE
* No byte limit in serial port Transceiving
* In open environment, realize 100m ultra-distance communication with iphone4s 
* USB protocol: USB V2.0
* Working frequency: 2.4GHz ISM band
* Modulation method: GFSK(Gaussian Frequency Shift Keying)
* Transmission power: -23dbm, -6dbm, 0dbm, 6dbm, can be modified by AT command.
* Sensitivity: ≤-84dBm at 0.1% BER
* Transmission rate: Asynchronous: 6K bytes ; Synchronous: 6k Bytes
* Security feature: Authentication and encryption
* Supporting service: Central & Peripheral UUID FFE0, FFE1
* Power consumption: Auto sleep mode, stand by current 400uA~800uA, 8.5mA during transmission. 
* Power supply: 5V DC 
* Working temperature: –5 to +65 Centigrade

<br>
==Circuit Connection==
<br>[[File:Ks0174-1.png|500px|frameless|thumb]]<br>

<br>

==Sample Code==
<pre>
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("keyestudio");
}
}
</pre>

<br>
==Result==
Open APP HC-COM, click search device, select the device, device is connected; the LED on the Bluetooth module is on. Enter “a” in HC-COM, click send, Bluetooth APP will display keyestudio. Every time HC-COM sends an “a”, the Pin13 LED on the main board blinks once.



<span style=color:red>Note: The above used APP is only compatible with Android system. You need to search BLE Scanner 4.0 to download app in APP store if your use iphone.</span>


<br>[[File:ks0174-2.png|600px|frameless|thumb]]<br>

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== Resources ==

<span style=color:red>'''Allow APP to access “location” in settings of your cellphone when connecting to Bluetooth module.'''</span>


With respect to APP, Code and PDF file, get more details in the following link:

https://fs.keyestudio.com/KS0174


* '''Video:'''<br>
http://video.keyestudio.com/ks0174/

<br>

== Get One Now ==

*[https://www.keyestudio.com/free-shipping-keyestudio-hm-10-bluetooth-40-v2-module-for-arduino-p0181.html  '''Official Website''']

*[https://www.amazon.com/keyestudio-Bluetooth-Module-HM-10-Bluetooth-4-0/dp/B01E8JLKFW?ref_=w_bl_hsx_s_pc_web_13497667011    '''Shop on Amazon''']

*[https://www.aliexpress.com/store/product/Free-shipping-HM-10-transparent-serial-bluetooth-4-0-bluetooth-serial-port-module-with-logic-level/1452162_32276092839.html?spm=2114.12010612.8148356.7.6ed51583raQICZ   '''Shop on aliexpress''']


[[Category:Module]]