I have some unique hardware that I've never played with before. On the timer module, I'll use a four-character number display that communicates with I2C. It is surprisingly expensive, but I'm curious to try it. The four digits will correspond to the milliseconds between sync pulses.
Sketch and dimensions of seven-segment display
The OLED screen on my Back of the Hand keyboard came preinstalled, but it was probably the same unit I'll be using on the drum machine and instrument panels. Like the number display, this communicates with I2C. I should be able to find an Arduino library.
0.96" screen measurements
For the sixteen buttons on each instrument module, I will be using inexpensive 4x4 membrane keypads. They use eight IO pins, but that covers nearly all of my switches. Libraries probably exist, but I'll write a function to read the inputs.
Keypad and numbers
I thought of a way to make a labeled faceplate on the laser engraver. It will rely on the flexibility of plastic or wood, depending on what I cut. The pattern should work in the future if I use the keypads again.
Idea for a laser-cut keypad overlay
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.
2021-09-02
The OLED screen on my Back of the Hand keyboard came preinstalled, but it was probably the same unit I'll be using on the drum machine and instrument panels. Like the number display, this communicates with I2C. I should be able to find an Arduino library.
For the sixteen buttons on each instrument module, I will be using inexpensive 4x4 membrane keypads. They use eight IO pins, but that covers nearly all of my switches. Libraries probably exist, but I'll write a function to read the inputs.
I thought of a way to make a labeled faceplate on the laser engraver. It will rely on the flexibility of plastic or wood, depending on what I cut. The pattern should work in the future if I use the keypads again.
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.
2021-09-02
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