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Difference between revisions of "KEY64 251"

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(Schematic and Layout)
(Wiring Diagram)
 
(5 intermediate revisions by the same user not shown)
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**no figuring out which X-matrix-wire goes with which Y-matrix-wire (as you have to do with the other Keymatrix Daughterboards)
 
**no figuring out which X-matrix-wire goes with which Y-matrix-wire (as you have to do with the other Keymatrix Daughterboards)
 
*connectors: pinheaders for IDC ribbon flat cables
 
*connectors: pinheaders for IDC ribbon flat cables
 +
**Use 16 pos (2x8) crimp terminal Wire-to-Board headers for key inputs
 +
**Use 10 pos (2x5) crimp terminal Wire-to-Board header for common wire or use the terminal board option
 
*board size: 80x100mm (half euro size)
 
*board size: 80x100mm (half euro size)
  
 
== Schematic and Layout  ==
 
== Schematic and Layout  ==
Board Schematic [[Media:key64_251_sch.pdf]]
+
Board Schematic [[Media:Key64251sch.pdf]]
 +
 
 +
Layout [[Media:Key64251layout.pdf]]
 +
 
 +
== Wiring Diagram ==
 +
Switch wiring [[Media: key64251wiring.pdf]]
  
 
== Bill of Materials  ==
 
== Bill of Materials  ==
  
 
The BOM is here: no BOM yet
 
The BOM is here: no BOM yet

Latest revision as of 02:50, 3 May 2009

KEY64D_251 Keymatrix Daughterboard

Features:

  • 64 inputs
  • one common wire for all 64 inputs
  • one wire for each switch's second terminal
  • no ghosting
  • more wires, but wiring is easier to understand and track
    • no figuring out which X-matrix-wire goes with which Y-matrix-wire (as you have to do with the other Keymatrix Daughterboards)
  • connectors: pinheaders for IDC ribbon flat cables
    • Use 16 pos (2x8) crimp terminal Wire-to-Board headers for key inputs
    • Use 10 pos (2x5) crimp terminal Wire-to-Board header for common wire or use the terminal board option
  • board size: 80x100mm (half euro size)

Schematic and Layout

Board Schematic Media:Key64251sch.pdf

Layout Media:Key64251layout.pdf

Wiring Diagram

Switch wiring Media: key64251wiring.pdf

Bill of Materials

The BOM is here: no BOM yet