user58041: Am trying to setup logic level converter with arduino for eps8266 WiFi module. Am using this logic level converter but it’s not working not sure what am doing am not getting any output. 
My circuit 
Red wire : 3.3v power source 
Orange wire : 5v power source 
Blue wire : ground. 
Yellow wire : arduino TX1 on B2
White wire : output on A2


Multi meter it red wire : 3.3 v showing on display

Multi meter it orange wire : 4.68 v showing on display

Multi meter it yellow wire : 4.36 v showing on display

**Multi meter it white wire : no voltage showing on display ??? **

Update : have set OE pin to enable and swapped red and orange. Still no output for yellow wire 


user47344: When the output-enable(OE) input is low, all outputs are placed in the high-impedance (Hi-Z) state.  You must connect the OE pin to logic high to enable the outputs.

58041: <p>Am trying to setup logic level converter with arduino for eps8266 WiFi module. Am using this logic level converter but it’s not working not sure what am doing am not getting any output. </p>

<p>My circuit </p>

<pre><code>Red wire : 3.3v power source 
Orange wire : 5v power source 
Blue wire : ground. 
Yellow wire : arduino TX1 on B2
White wire : output on A2
</code></pre>

<p><a href="https://i.stack.imgur.com/8vjMw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8vjMw.jpg" alt="enter image description here"></a></p>

<p><strong>Multi meter it red wire : 3.3 v showing on display</strong></p>

<p><a href="https://i.stack.imgur.com/DlfgW.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DlfgW.jpg" alt="enter image description here"></a></p>

<p><strong>Multi meter it orange wire : 4.68 v showing on display</strong></p>

<p><a href="https://i.stack.imgur.com/xftbT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xftbT.jpg" alt="enter image description here"></a></p>

<p><strong>Multi meter it yellow wire : 4.36 v showing on display</strong></p>

<p><a href="https://i.stack.imgur.com/W4cFA.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W4cFA.jpg" alt="enter image description here"></a></p>

<p>**Multi meter it white wire : no voltage showing on display ??? **</p>

<p><a href="https://i.stack.imgur.com/ysBH7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ysBH7.jpg" alt="enter image description here"></a></p>

<p>Update : have set OE pin to enable and swapped red and orange. Still no output for yellow wire </p>

<p><a href="https://i.stack.imgur.com/KASwO.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KASwO.jpg" alt="enter image description here"></a></p>
 47344: <p>When the output-enable(OE) input is low, all outputs are placed in the high-impedance (Hi-Z) state.  You must connect the OE pin to logic high to enable the outputs.</p>
