I wrote a debouncing function to test the diode matrix array, but it did not work. When I stripped out some of the collating code, I saw serial activity, and it let me correct it. The process recognized rising edges, so I could remove the delay that periodically reported every button state. The result was a clean report whenever I pressed a button. I printed the keypress as a two-digit number that reflected its position in the matrix.
I sketched a key layout but discarded media keys, like volume and mute, because they would require extra work to function with an Arduino Micro. I wanted to type a few symbols like omega and degrees, so I used alt-codes, like alt+234 = Ω. I had to use the decimal codes to ensure the computer understood I was using the numpad keys, but it worked well. My escape key also released any stuck keys, which is probably a good idea for home-brew keyboards. A couple of keys were not used, so I gave them elaborate combinations that would be inconvenient to type by hand, but AutoHotkey would recognize handily. Care Bear Keyboard is complete.
Connected and typing
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2023-05-
I sketched a key layout but discarded media keys, like volume and mute, because they would require extra work to function with an Arduino Micro. I wanted to type a few symbols like omega and degrees, so I used alt-codes, like alt+234 = Ω. I had to use the decimal codes to ensure the computer understood I was using the numpad keys, but it worked well. My escape key also released any stuck keys, which is probably a good idea for home-brew keyboards. A couple of keys were not used, so I gave them elaborate combinations that would be inconvenient to type by hand, but AutoHotkey would recognize handily. Care Bear Keyboard is complete.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2023-05-
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