Matrix user forums

Posted: **Fri Dec 29, 2017 8:30 pm**

Hi Everyone
This project will enable you to build an intelligent I2C keyboard controller for a 4x4 keypad (16 key). It can be extended to 42 keys and is fully customisable to suit your needs/application. It has a poll time of under 1ms and at transfer rate of 100khz on the I2C bus. Full construction details are included for the keyboard controller; FC7 component and working example of its use. It will also help further development to build a full 80+ keyboard controller.
I have included all the necessary files for construction in a zip file - sorry, but there are several files, more than what is allow in one post. If you have problems I will post them individually if you prefer.

Completed Devices & Component.zip: (2.15 MiB) Downloaded 326 times

Here is the tutorial to help with the building:

Mechatronics Part 1 - Building Inteligent Devices.pdf: (1.91 MiB) Downloaded 342 times

This is the devices specification:

Keyboard Controller Specification Pinouts Ver2.pdf: (321.34 KiB) Downloaded 343 times

Regards
Dave

Posted: **Wed Jan 03, 2018 3:06 pm**

Hi Everyone

These are updated Eagle PCB files that have been amended to match the Flowcode project. They are contained in this zip file, as these file types are not allowed to be uploaded to the forum:

Eagle PCB.zip: (55.06 KiB) Downloaded 274 times

Here is the updated Specification with new PCB Layout:

Keyboard Controller Specification Pinouts Ver2.pdf: (321.34 KiB) Downloaded 286 times

Dave

Matrix user forums

I2C Keyboard Controller

I2C Keyboard Controller

Re: I2C Keyboard Controller