A small board was designed with only two onboard switches and an IO expander. All eight IO points were broken out so it could easily act as a hub for nearby switches. The mounting hole spacing was kept uniform at the ends.
The next 2x2 board had no IO expander onboard. The purpose of the board was to hold up to four switches and provide terminals which would be easy to access. Mounting holes were placed in the center of the board. This may not be a usable design, depending on how well a key switch can fit over countersunk screws underneath it. If it works, it would be a very discrete breakout board.
A single-key breakout board was made for the sole purpose of having a button which can be mounted to a uniform screw mount. This may be useful for placing an array of buttons in an usual configuration or maybe mounting to the top of a handle to press with the thumb.
In a similar fashion, a double-key breakout board was made which placed the screws under a switch but provided minimal overhang around the switches.
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.
Disclaimer for http://24hourengineer.blogspot.com/ and http://24hourengineer.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.
2018-02-23
1x2 board with I2C chip
The next 2x2 board had no IO expander onboard. The purpose of the board was to hold up to four switches and provide terminals which would be easy to access. Mounting holes were placed in the center of the board. This may not be a usable design, depending on how well a key switch can fit over countersunk screws underneath it. If it works, it would be a very discrete breakout board.
2X2 breakout board
A single-key breakout board was made for the sole purpose of having a button which can be mounted to a uniform screw mount. This may be useful for placing an array of buttons in an usual configuration or maybe mounting to the top of a handle to press with the thumb.
1 key breakout board
In a similar fashion, a double-key breakout board was made which placed the screws under a switch but provided minimal overhang around the switches.
1X2 breakout board
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.
Disclaimer for http://24hourengineer.blogspot.com/ and http://24hourengineer.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.
2018-02-23
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