PCB Headers
The IO Pi Plus is a 32 channel MCP23017 GPIO expander for the Raspberry Pi
04/08/2017
Posted by:
MStylesMS
Ok, so when I look at the PCB board it looks like it was designed for a 20-pin wire-to-board connector like a MOLEX 90130-3220. Can you confirm that I'm seeing that right? Are there other, better choices?
http://www.newark.com/molex/90130-3220/wire-to-board-connector-header/dp/26M7917?MER=bn_level5_5NP_EngagementRecSingleItem_2
http://www.newark.com/molex/90130-3220/wire-to-board-connector-header/dp/26M7917?MER=bn_level5_5NP_EngagementRecSingleItem_2
04/08/2017
Posted by:
andrew
The IO Pi Plus was designed to work with the MOLEX 90130-3220 right-angle connector or the 70246-2004 style straight connector.
If you plan on stacking more than one IO Pi Plus on a Raspberry Pi then the right-angle connector would be a better option as the clearance between the boards isn't big enough to fit the straight socket and a plug.
If you plan on stacking more than one IO Pi Plus on a Raspberry Pi then the right-angle connector would be a better option as the clearance between the boards isn't big enough to fit the straight socket and a plug.
07/08/2017
Posted by:
MStylesMS
Quote from andrew
The IO Pi Plus was designed to worth with the MOLEX 90130-3220 right angle connector or the 70246-2004 style straight connector...
Thank you Andrew, that was very helpful!
One more question. On the power connector I can see that it has holes for the 5mm screw terminal PLUS two more holes. Is there a specific socket that was designed for? There isn't a dimension on the two extra holes.
The IO Pi Plus was designed to worth with the MOLEX 90130-3220 right angle connector or the 70246-2004 style straight connector...
Thank you Andrew, that was very helpful!
One more question. On the power connector I can see that it has holes for the 5mm screw terminal PLUS two more holes. Is there a specific socket that was designed for? There isn't a dimension on the two extra holes.
07/08/2017
Posted by:
andrew
The two narrower holes are 2.54mm spacing. On the original version of the IO Pi Plus, the power connector was 2.54mm pitch, designed to work with our 2.54mm screw terminal. When we designed version 2 of the IO Pi Plus we added the holes to use a 5mm screw terminal but kept the 2.54mm holes to give people a choice in what type of connector they want to use.
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