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This could be a Printed Circuit Board (PCB) or insulated wires but you will almost undoubtedly have to solder.
 
This could be a Printed Circuit Board (PCB) or insulated wires but you will almost undoubtedly have to solder.
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You will need
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# A soldering iron
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# Solder
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# Flux
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# Good Illumination
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# Three hands
    
==Encoders connected using a MCP23017 chip==
 
==Encoders connected using a MCP23017 chip==
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