Inexpensive latching switches were ordered for the prototyping area. These keys were meant to be programmed as the arrow keys, HOME, END, PAGE UP, and PAGE DOWN. For instances where a lot of scrolling is necessary, like infinite scrolling web pages, these would be useful. There are some games and programs where scrolling like this would be useful.
The buttons were soldered to the prototyping area by their common center pins to keep them in place. All the common pins were connected to ground. White wire was used to connect the normally open contacts of the switches to the exposed pads made for this kind of experimentation.
A single layer was programmed for the keys to use the arrows, home/end, and paging buttons. Not much attention was given to the way the wires were connected, so the keys were arranged in software and they all worked. There was some repair soldering necessary on the IO expander before the keys worked.
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
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in 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.
2018-04-28
Arranged and soldered latching switches
The buttons were soldered to the prototyping area by their common center pins to keep them in place. All the common pins were connected to ground. White wire was used to connect the normally open contacts of the switches to the exposed pads made for this kind of experimentation.
Soldering for latching switches
A single layer was programmed for the keys to use the arrows, home/end, and paging buttons. Not much attention was given to the way the wires were connected, so the keys were arranged in software and they all worked. There was some repair soldering necessary on the IO expander before the keys worked.
Latching switches in action
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
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in 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.
2018-04-28
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