Alternative (Chinese Cheaper version) Ethernet Shield and Mayhew Lab Multiplexer

Projects Networking, Protocols, and Devices
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Hi All,

I have purchased the alternative version of the ethernet shield from the chinese website (Ethernet Shield Module W5100 Micro SD Card Slot For UNO MEGA 2560 Geekcreit for Sale - Banggood USA sold out-arrival notice) and I am trying to use it with my Multiplexer (Mux Shield II | Mayhew Labs).

After I received the ethernet shield, I realized that the shield has 2 less pins on each side compared to the actual ethernet shield posted on the Arduino website (please see the attached picture).

I am trying to send data from a bunch of sensors that are connected to my multiplexer through the ethernet shield to my node.js application. When I use the multiplexer with the ethernet shield, the data is not sent. But when I use the ethernet shiled alone with only 2 sensors it works perfectly.

There are 2 theories that comes into my mind, either this is caused by less number of pins on my ethernet shield, or there is a pin conflict between the ethernet shield and the multiplexer.

Can anyone help me with this? Thanks.

Ethernet Shield.jpg
Ethernet Shield.jpg1105×1419 103 KB

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Can anyone help me with this? Thanks.

The below discussion has some possible answers.

http://forum.arduino.cc/index.php?topic=234241.msg1686503#msg1686503

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zoomkat:

Can anyone help me with this? Thanks.

The below discussion has some possible answers.

Problem: UDP Wraped with If Statement - Programming Questions - Arduino Forum

Zoomkat,

Thanks for your answer. That's the topic I created to solve the software problems. Now the issue is hardware, that's why I posted this under this section of the forum.

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[SOLVED]

Pin conflict between pins 10, 11, 12. Hard wired them and the issue is fixed.