A prototyping board was made which had an IO expander mounted at one end and all the IO broken out next to ground terminals. The rest of the board is empty holes at standard 2.54mm (0.1”) spacing. Some connections were run through the prototyping area but they would be covered by soldermask.
A unique board was made which was intended to support different connector styles. The board had support for a four-position 3.5mm headphone jack, a 4-position RJ-45 connector, and a hole for an aviator connector which support up to eight positions. There are extra screws around the hole for support. These different connectors should allow boards to be linked by I2C at a distance by using standard cords or custom-made cords.
All the keyboards designed so far have been combined into an animated image which shows the variety of sizes and configurations. These were evaluated to be the most important designs for initial hardware testing.
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
Protoboard layout
A unique board was made which was intended to support different connector styles. The board had support for a four-position 3.5mm headphone jack, a 4-position RJ-45 connector, and a hole for an aviator connector which support up to eight positions. There are extra screws around the hole for support. These different connectors should allow boards to be linked by I2C at a distance by using standard cords or custom-made cords.
Breakout boards for different connectors
All the keyboards designed so far have been combined into an animated image which shows the variety of sizes and configurations. These were evaluated to be the most important designs for initial hardware testing.
All keyboards
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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