user6969: Recently I bought a BT module from eBay which was very cheap. I didn't really noticed the image and I just bought it. When it came I couldn't find any holes to solder the headers. Also the specific module is pretty rare and I couldn't find anything.
Here is an image:

How do I wire up this chip?

user7555: From the picture you posted, i was able to google and find something called a BC04-B Bluetooth serial module. It looks almost exactly like yours, and I found a diagram on how to hook it up.

I also believe that these are the serial commands you can use with it...


user313: These Bluetooth modules are typically mounted onto another substrate, either the product board or a small PCB backplane which provides the pinouts and any additional circuitry like the pairing LED, and power- & signal-level management.
They are readily available as HC-05 (master/slave) or HC-06 (slave only) with signals brought to through-holes or pins at the edge of the backplane.

6969: <p>Recently I bought a BT module from eBay which was very cheap. I didn't really noticed the image and I just bought it. When it came I couldn't find any holes to solder the headers. Also the specific module is pretty rare and I couldn't find anything.</p>

<p>Here is an image:</p>

<p><a href="https://i.stack.imgur.com/Dz4RR.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Dz4RR.jpg" alt="BlueTooth Module"></a></p>

<p>How do I wire up this chip?</p>
 7555: <p>From the picture you posted, i was able to google and find something called a BC04-B Bluetooth serial module. It looks almost exactly like yours, and I found a diagram on how to hook it up.
<img src="https://i.stack.imgur.com/kRMZH.jpg" alt="BC04-B Bluetooth serial module"></p>

<p>I also believe that these are the serial commands you can use with it...
<img src="https://i.stack.imgur.com/ureCG.jpg" alt="Bluetooth module serial commands"></p>
 313: <p>These Bluetooth modules are typically mounted onto another substrate, either the product board or a small PCB backplane which provides the pinouts and any additional circuitry like the pairing LED, and power- &amp; signal-level management.
They are readily available as HC-05 (master/slave) or HC-06 (slave only) with signals brought to through-holes or pins at the edge of the backplane.</p>
