I added color-coded wires to a screen and an infrared receiver module. I ran them into the pipe by drilling a couple of holes into it and passing the conductors through the screen holder's mounting holes.
I wired the microcontroller. Some of the wires were easy to spot because of their position in the pipe or color. The ones connected to the screen needed a continuity tester to land them. I tracked my changes on the drawing print.
I printed a copy of the schematics so I would have an easy reference while working and could check off wires and components as I added them. The paper was also a place for my notes, and it was a mess when I finished wiring. I updated the drawing by removing the components I did not want, such as some of the light bars, and added the infrared receivers that I used in the IR module.
I started programming with the screen, as it can be helpful for diagnostics, even though it tends to be the hardest to set up. I found a usable demo program from Adafruit, and it displayed on the screen, but I could not get the backlight to illuminate.
The screen was supposed to be 3.3V and 5.0V compatible, so I started with 3.3V, the ESP32's native voltage. I also assumed the backlight was a sinking input and would respond to a 0V signal. I was wrong on both accounts because it worked perfectly at 5.0V with a high signal on the backlight pin.
Sarah, Amanda, and I talked about Produce Cats and brainstormed some possibilities for the next round. We discussed the 2002 movie The Cat Returns to complete the feline theme. It was a magical movie, but the characters were rough around the edges, probably because the movie started as a short film for a theme park.
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
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
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.
 |
| Wiring from the screen and IR receiver |
I wired the microcontroller. Some of the wires were easy to spot because of their position in the pipe or color. The ones connected to the screen needed a continuity tester to land them. I tracked my changes on the drawing print.
 |
| Wired demo board |
I printed a copy of the schematics so I would have an easy reference while working and could check off wires and components as I added them. The paper was also a place for my notes, and it was a mess when I finished wiring. I updated the drawing by removing the components I did not want, such as some of the light bars, and added the infrared receivers that I used in the IR module.
 |
| Updated schematic drawing |
I started programming with the screen, as it can be helpful for diagnostics, even though it tends to be the hardest to set up. I found a usable demo program from Adafruit, and it displayed on the screen, but I could not get the backlight to illuminate.
 |
| Showing the changing screen |
The screen was supposed to be 3.3V and 5.0V compatible, so I started with 3.3V, the ESP32's native voltage. I also assumed the backlight was a sinking input and would respond to a 0V signal. I was wrong on both accounts because it worked perfectly at 5.0V with a high signal on the backlight pin.
 |
| Running a demo program on the screen |
Sarah, Amanda, and I talked about Produce Cats and brainstormed some possibilities for the next round. We discussed the 2002 movie The Cat Returns to complete the feline theme. It was a magical movie, but the characters were rough around the edges, probably because the movie started as a short film for a theme park.
Critical Affection: The Cat Returns ()
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
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
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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