user26037: Ordered Universal IR Receiver and I got HW-477 module with VS1838B IR Sensor.
Good thing is datasheet for VS1838B is available but not for HW-477.
VS1838B pins as: Ref
Signal | GND | VCC
while HW-477 says:
(- minus) | R | G
Can't understand which one to follow and R is for Receiver? G is for GND and what is - (minus sign) for?
So can anyone help me with ( - R G ) of HW-477 ?
Images:


These may help?!
this & this one.
Updates:
I looked to trace the Foil (PCB Board Lines) but it didn't worked because the circuit as whole is coated.
Using Connectivity (Continuity (diode test)) option of Digital Multimeter, found these to play beep:




VS1838B
HW-477




Signal
G & (minus pin of HW-477)


GND
(- minus pin of HW-477)


VCC
R




But a person in this video saying

- is of course GND

There is a huge confusion which can only be cleared if I got a reply from seniors. I have two of this and can try one (even to burn) to better understand what is going on.
(Tried contacting the vendor about datasheet but they are not responding)

user4143: The problem here is that HW-477 refers not to the module as a whole but a generic PCB that is re-used (in some starter kits for sure) for many different sensors. I think the idea is that whatever device is attached to the board there's a position where the output is always the same (- = GND, R = VCC, G = Signal).
On some variants of the board you can see them labelled as - + S.

26037: <p>Ordered <strong>Universal IR Receiver</strong> and I got <strong>HW-477 module</strong> with <strong>VS1838B IR Sensor</strong>.</p>
<p>Good thing is datasheet for <strong>VS1838B</strong> is <a href="https://www.makerfabs.com/infrared-receiver-vs1838b.html" rel="nofollow noreferrer">available</a> but not for HW-477.</p>
<p><strong>VS1838B</strong> pins as: <a href="https://circuits-diy.com/how-to-make-ir-infrared-reciever-module-using-vs1838b/" rel="nofollow noreferrer">Ref</a><br />
Signal | GND | VCC</p>
<p>while <strong>HW-477</strong> says:<br />
(- minus) | R | G</p>
<p>Can't understand which one to follow and <strong>R</strong> is for Receiver? <strong>G</strong> is for GND and what is <strong>-</strong> (minus sign) for?</p>
<p>So can anyone help me with ( - R G ) of <strong>HW-477</strong> ?</p>
<p>Images:<br />
<a href="https://i.stack.imgur.com/xWfG4l.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xWfG4l.jpg" alt="HW-477 module" /></a>
<a href="https://i.stack.imgur.com/YJZJS.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YJZJS.jpg" alt="VS1838B IR Sensor." /></a></p>
<p>These may help?!<br />
<a href="https://youtu.be/zwPBItsFBFk?t=255" rel="nofollow noreferrer">this</a> &amp; <a href="https://youtu.be/GnvHHZTJmv4?t=5" rel="nofollow noreferrer">this</a> one.</p>
<p><strong>Updates:</strong></p>
<p>I looked to trace the Foil <em>(PCB Board Lines)</em> but it didn't worked because the circuit as whole is coated.</p>
<p>Using <strong>Connectivity</strong> <em>(Continuity (diode test))</em> option of Digital Multimeter, found these to play beep:</p>
<div class="s-table-container">
<table class="s-table">
<thead>
<tr>
<th><strong>VS1838B</strong></th>
<th><strong>HW-477</strong></th>
</tr>
</thead>
<tbody>
<tr>
<td>Signal</td>
<td>G &amp; (minus pin of HW-477)</td>
</tr>
<tr>
<td>GND</td>
<td>(- minus pin of HW-477)</td>
</tr>
<tr>
<td>VCC</td>
<td>R</td>
</tr>
</tbody>
</table>
</div>
<p>But a person in <a href="https://youtu.be/zwPBItsFBFk?t=255" rel="nofollow noreferrer">this video</a> saying</p>
<blockquote>
<p>- is of course GND</p>
</blockquote>
<p>There is a huge confusion which can only be cleared if I got a reply from seniors. I have two of this and can try one (even to burn) to better understand what is going on.</p>
<p>(Tried contacting the vendor about datasheet but they are not responding)</p>
 4143: <p>The problem here is that <strong>HW-477</strong> refers not to the module as a whole but a generic PCB that is re-used (in some starter kits for sure) for many different sensors. I think the idea is that whatever device is attached to the board there's a position where the output is always the same (<code>- = GND</code>, <code>R = VCC</code>, <code>G = Signal</code>).
On some variants of the board you can see them labelled as <code>- + S</code>.</p>
