Hi all,
The Holtek 16K33 seems to be part of many LED display boards these days.
The chip is relatively easy to drive with a picaxe for LEDs etc.
However, (before i try re-inventing the wheel) has anyone actually mastered how to read pushbuttons into this chip?
The datasheet shows it can read upto 39 buttons, in a 3 x 13 matrix as part of the LED matrix wiring.
I've had a few reads, and filtering out the chinglish aspect doesn't leave me feeling confident about addressing and reading the buttons pressed.
Have any of the Guru's out there tried button encoding on the 16K33 before?
Thanks in advance.
The Holtek 16K33 seems to be part of many LED display boards these days.
The chip is relatively easy to drive with a picaxe for LEDs etc.
However, (before i try re-inventing the wheel) has anyone actually mastered how to read pushbuttons into this chip?
The datasheet shows it can read upto 39 buttons, in a 3 x 13 matrix as part of the LED matrix wiring.
I've had a few reads, and filtering out the chinglish aspect doesn't leave me feeling confident about addressing and reading the buttons pressed.
Have any of the Guru's out there tried button encoding on the 16K33 before?
Thanks in advance.