<p><span style=”font-size:18px;”><span style=”font-family:Arial,Helvetica,sans-serif;”><strong>Description:</strong></span></span><br />
<span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>HC-08 is a Bluetooth 4.0 low energy module, it can easily connect to iOS 5 and Android 4.3 or above by using a serial terminal app. You can use the Bluetooth communication up to 87 yards (80 meters) with this Bluetooth BLE module. It also runs on a 2.4GHz frequency. The chipset is CC2540 with 256K Byte space. You can change the role and serial baud rate and it supports AT commands for configuration.</span></span></p>
<p><br />
<span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>It is very small in size, 1.1 x 0.5 in (26.9 x 13mm). The PCB thickness is 0.03 (0.7mm). Half-cut holes run along the lengths of the board, so it’s very easy to embed into your own project. It also has Tx and Rx 2.54 pin out, from which you can do a quick function test. Included are 90-degree male header pins.</span></span><br />
</p>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>HC-08 is a relatively new module made by an experienced Bluetooth design and manufacturing supplier in China. It’s mass produced and therefore well-tested. It can be incorporated into products or projects without worrying about being able to get it again. It’s already widely used in many Bluetooth projects. </span></span></p>
<p> </p>
<p> </p>
<p><span style=”font-size:18px;”><span style=”font-family:Arial,Helvetica,sans-serif;”><strong>Specifications:</strong></span></span></p>
<ul>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Frequency: 2.4GHz ISM</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Protocol: BLE 4.0</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Max transmitting power: max. 4dBm</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Modulation System: GFSK</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Serial Baud Rate: 1200 to 115200 bps</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Reference Distance: 80 meters</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Speed: 1Mbps (Max)</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Power supply: 2.0 – 3.6 V</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Sleep Mode Current: 0.4uA (MODE 2)</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Communication Port: UART 3.3V TTL</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Working temperature: -20 ~ +75 Centigrade</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Dimension: 26.9 * 13mm * 2.2 mm</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Half-cut hole pitch: 1.5mm</span></span></p>
</li>
<li>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Weight: 0.18oz (5g)</span></span></p>
</li>
</ul>
<p> </p>
<p><strong><span style=”font-size:18px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Pin description</span></span></strong></p>
<table border=”1″ cellpadding=”1″ cellspacing=”1″ style=”width: 800px;”>
<tbody>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>pin </span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>definition </span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>I/O </span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>explain </span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>1</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>TXD</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>output</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>URAT output, 3.3V TTL level</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>2</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>RXD</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>URAT input, 3.3V TTL level</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>3</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>4</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>5</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>6</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>DC</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Debug clock</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>7</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>DD</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Input/output</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Debug data</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>8</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO20</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>9</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO17</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>10</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO16</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>11</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>RST</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Module reset pin, a low level of not less than 5ms reset</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>12</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>VCC</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Power pin, the requirements of 3.3V DC power supply, the supply current is not less than 100mA</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>13</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>GND</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Ground</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>14</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>15</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>USB_D-</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>16</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>17</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>18</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO15</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>19</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO14</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>20</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>USB_D+</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>21</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>GND</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Ground</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>22</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>GND</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>Ground</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>23</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>24</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO13</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>output</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>LED output(Noteâ‘ , refer to the datasheet link at below)</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>25</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO11</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>26</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO12</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>The master module clear memory(Noteâ‘¡, refer to the datasheet link at below)</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>27</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO10</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>28</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO07</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>29</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>30</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>31</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO06</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>32</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO01</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>33</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
<td>
<p> </p>
</td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>34</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>PIO00</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>input,weak pull up</span></span></p>
</td>
<td>
<p><span style=”font-size:14px;”><span style=”font-family:Arial,Helvetica,sans-serif;”>NC</span></span></p>
</td>
</tr>
</tbody>
</table>
<p> </p>
<p><a href=”http://www.wavesen.com/mysys/db_picture/news3/2015121885146101.pdf”><span style=”color:#3498db;”>HC-08 BLUETOOTH UART COMMUNICATION MODULE V2.0 USER MANUAL</span></a></p>
<p> </p>
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