Difference between revisions of "KEY64 251"
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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: | + | 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
Contents
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