Difference between revisions of "TinyPS2"

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* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/TinyPS2 GitHib Repo for TinyPS2 Firmware]
 
* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/TinyPS2 GitHib Repo for TinyPS2 Firmware]
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 +
=== TinyPS2V01 ===
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 +
* [https://www.pjrc.com/teensy/td_libs_PS2Keyboard.html PJRC library]
 
* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/TinyPS2/TinyPS2V01 Read PS/2 print to screen]
 
* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/TinyPS2/TinyPS2V01 Read PS/2 print to screen]
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* Resources
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<pre>
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Sketch uses 3334 bytes (10%) of program storage space. Maximum is 32256 bytes.
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Global variables use 377 bytes (18%) of dynamic memory, leaving 1671 bytes for local variables. Maximum is 2048 bytes.
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</pre>
  
 
== Other People's Videos ==
 
== Other People's Videos ==

Revision as of 10:03, 4 May 2022

TinyPS2 P899 cropped-720px.jpg

Features

  • PS/2 keyboard or mouse to TTL Level Serial converter
  • ATTiny85
  • 115,200 baud
  • 49x49mm ODAS form factor
  • 4-40 mounting holes

Connectors

J1 - TTL Serial Connector

  1. 5V
  2. SERTX
  3. N/C
  4. GND

J2 - PS/2

  • Standard PS/2 Mini-DIN-6 connector

H2 - In-System Programming Header

  • SPI connector to download ATTiny85
  • 2x3 header
  • Program ATTiny85 without PS/2 keyboard attached
  • Pinout
  1. KBCLK
  2. GND
  3. SERTX
  4. KBDAT
  5. RST*
  6. GND

Firmware

TinyPS2V01

Sketch uses 3334 bytes (10%) of program storage space. Maximum is 32256 bytes.
Global variables use 377 bytes (18%) of dynamic memory, leaving 1671 bytes for local variables. Maximum is 2048 bytes.

Other People's Videos

Schematic

Issues

  • Missing pull-up resistors on PS/2
    • Rev 2 - add pull-up resistors
  • Missing C3 cap in sequence
    • Rev 2 - change C4 => C3

Assembly Sheet