I foolishly let this project sit in my inbox for over a year because I was afraid that combing through pages of documentation was going to be overly time-consuming. Once I knuckled down, I saw that the author wasn't merely thorough, they were also organized, and I had no trouble finding everything I needed. The project was a valve that released a drop of water, started a timer, then triggered a camera shutter. It featured a custom circuit board, but there were instructions so anyone could build their own.
I had a bike computer when I was in high school, and it was rudimentary, and compared to this build, it was childish. With all the easy-to-implement sensors on the market, it is no surprise to see such exciting builds. Instead of going all out, this builder limited what the computer would do to things like a barometer, time, speed, direction. The alternative was to make a handlebar media center, but this computer prized a long battery life, so it was an elegant device.
When the COVID-19 pandemic started, I saw a lot of cool sidewalk art done in chalk. Years earlier, I saw a recipe in a Make: about how to make your own from paint and plaster of Paris. I loved the idea, but it wasn't until now that I bothered to find a recipe on Instructables and write about it.
I sketched the schematic for miniCard so I could start writing instructions. I already have most of the other pictures. These directions won't be full of details like I would typically provide. The audience for this project is limited, and I expect it will only be folks I know. Aside from this blog, I won't be promoting it publicly.
I started an Instructables page for miniCard. The hardest part was finding the essential pictures. While there are lots of pictures already, sometimes they show parts I've replaced or arrangements I improved, so many of the images do not fit the flow of how people should build a miniCard.
My code was not complete. There was still an issue with the battery level threshold. I couldn't tell when the battery was dying until it was too late. I tried a few methods to determine the voltage where my boosting circuit gave up, but I didn't have any luck. My biggest failure was connecting a power supply that didn't go low enough to deactivate the voltage converter.
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 had a bike computer when I was in high school, and it was rudimentary, and compared to this build, it was childish. With all the easy-to-implement sensors on the market, it is no surprise to see such exciting builds. Instead of going all out, this builder limited what the computer would do to things like a barometer, time, speed, direction. The alternative was to make a handlebar media center, but this computer prized a long battery life, so it was an elegant device.
When the COVID-19 pandemic started, I saw a lot of cool sidewalk art done in chalk. Years earlier, I saw a recipe in a Make: about how to make your own from paint and plaster of Paris. I loved the idea, but it wasn't until now that I bothered to find a recipe on Instructables and write about it.
I sketched the schematic for miniCard so I could start writing instructions. I already have most of the other pictures. These directions won't be full of details like I would typically provide. The audience for this project is limited, and I expect it will only be folks I know. Aside from this blog, I won't be promoting it publicly.
miniCard schematic
I started an Instructables page for miniCard. The hardest part was finding the essential pictures. While there are lots of pictures already, sometimes they show parts I've replaced or arrangements I improved, so many of the images do not fit the flow of how people should build a miniCard.
Start of an Instructable
My code was not complete. There was still an issue with the battery level threshold. I couldn't tell when the battery was dying until it was too late. I tried a few methods to determine the voltage where my boosting circuit gave up, but I didn't have any luck. My biggest failure was connecting a power supply that didn't go low enough to deactivate the voltage converter.
5V minimum power supply
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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