Difference between revisions of "TinyPS2"
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* [https://www.pjrc.com/teensy/td_libs_PS2Keyboard.html PJRC PS/2 library] | * [https://www.pjrc.com/teensy/td_libs_PS2Keyboard.html PJRC PS/2 library] | ||
* [https://docs.arduino.cc/learn/built-in-libraries/software-serial Software Serial library] | * [https://docs.arduino.cc/learn/built-in-libraries/software-serial Software Serial library] | ||
| − | * Resources | + | * Resources (ATTiny85) |
<pre> | <pre> | ||
Sketch uses 3126 bytes (38%) of program storage space. Maximum is 8192 bytes. | Sketch uses 3126 bytes (38%) of program storage space. Maximum is 8192 bytes. | ||
Revision as of 10:35, 4 May 2022
Contents
Features
- PS/2 keyboard or mouse to TTL Level Serial converter
- ATTiny85
- 8 KB of flash
- 8-MHz internal RC oscillator that can be used as the default clock
- 512 bytes of EEPROM
- 512 bytes of SRAM
- 115,200 baud
- 49x49mm ODAS form factor
- 4-40 mounting holes
Connectors
J1 - TTL Serial Connector
- 5V
- SERTX
- N/C
- 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
- KBCLK
- GND
- SERTX
- KBDAT
- RST*
- GND
Firmware
- GitHib Repo for TinyPS2 Firmware
- Add to Prefernces
https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json
TinyPS2V01
- PJRC PS/2 library
- Read PS/2 print to screen
- Resources (Arduino UNO)
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.
TinyPS2V02
- PJRC PS/2 library
- Software Serial library
- Resources (ATTiny85)
Sketch uses 3126 bytes (38%) of program storage space. Maximum is 8192 bytes. Global variables use 241 bytes (47%) of dynamic memory, leaving 271 bytes for local variables. Maximum is 512 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
