I finally got a reliable infrared strength meter on my screen, but it only confirmed my fear that I would never get a usable reading. I couldn't see any difference between open-air and a finger, or even reflective metal, in the scanning area. I decided to scrap the IR sensing. Maybe I'll add a motion sensor.
Failed IR aerial
I found a GitHub repo with an Arduino library that used the ESP32 to emulate a Bluetooth keyboard. I was worried this wouldn't be simple, or maybe not even possible, but plenty of people want the same thing, and T-vK made an outstanding contribution.
Wireless keyboard
I added a screen that would display all four finger rod pressure readings. A display like this will be crucial when I build new devices and adjust the screw tightness. The screen is activated when I flip one of the auxiliary switches.
Finger rod pressures
I couldn't correctly adjust the tension on all the finger rods. After some thought, I figured it would be best to add a rubber bumper into the platform, and I chose an o-ring that anyone can buy.
I needed to model a torus, which is donut-shaped. Unlike basic shapes in OpenSCAD, this doesn't use one command. The rotate_extrude() function can turn a circle into a hoop. I whipped up the form and added eight to the platform, and it was ready for printing.
Divots for my O-rings
I moved some of the hardware to the new platform. I left the tall aerials on my old one, but I printed the bases because they held the Velostat in place. This time, I sealed rubber O-rings under the copper tape and mounting bolt so the finger rods would "float." Once installed, I booted to the tuning screen and got all four working.
Tuning pressure sensors
The rest of the summary posts 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
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.
I found a GitHub repo with an Arduino library that used the ESP32 to emulate a Bluetooth keyboard. I was worried this wouldn't be simple, or maybe not even possible, but plenty of people want the same thing, and T-vK made an outstanding contribution.
I added a screen that would display all four finger rod pressure readings. A display like this will be crucial when I build new devices and adjust the screw tightness. The screen is activated when I flip one of the auxiliary switches.
I couldn't correctly adjust the tension on all the finger rods. After some thought, I figured it would be best to add a rubber bumper into the platform, and I chose an o-ring that anyone can buy.
I needed to model a torus, which is donut-shaped. Unlike basic shapes in OpenSCAD, this doesn't use one command. The rotate_extrude() function can turn a circle into a hoop. I whipped up the form and added eight to the platform, and it was ready for printing.
I moved some of the hardware to the new platform. I left the tall aerials on my old one, but I printed the bases because they held the Velostat in place. This time, I sealed rubber O-rings under the copper tape and mounting bolt so the finger rods would "float." Once installed, I booted to the tuning screen and got all four working.
The rest of the summary posts 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
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.
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