An untested board was put into the project. This was a 1x2 with an IO expander IC, so the traces were crowded compared to some of the other boards. There was also a need for boards to be added to the pin breakouts. Keyswitches were added right away.
When the IC was soldered in place, it was possible to see the chip with an I2C scanner. The soldering was inspected and looked reliable.
Since the board could be seen by the computer, I assumed it would be usable, so new mounting holes were marked and drilled into the wooden board.
Two more boards were added which had room for two switches each, but they were only breakout boards without room for ICs themselves. Three wires were run to each of the breakout boards, one wire per switch and a ground wire. At six switches, there was room for two more, but they were left unconnected.
ModuKey on GitHub
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 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.
2018-11-04
1x2 board
When the IC was soldered in place, it was possible to see the chip with an I2C scanner. The soldering was inspected and looked reliable.
Chip was seen on an I2C scanner
Since the board could be seen by the computer, I assumed it would be usable, so new mounting holes were marked and drilled into the wooden board.
Marking holes for 1x2 board
Two more boards were added which had room for two switches each, but they were only breakout boards without room for ICs themselves. Three wires were run to each of the breakout boards, one wire per switch and a ground wire. At six switches, there was room for two more, but they were left unconnected.
Adding "wings" to board
ModuKey on GitHub
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 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.
2018-11-04
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