I was asked to help design a blinky badge for an infosec convention in Texas by a friend,C00p3r, who lives there. The circuit was rudimentary, and I was familiar with the Electronic Design Automation software, so it was a simple task all things considered. He provided me with some artwork and the basic dimensions, and I created the first draft.
The first artwork lacked detail because it was a raster image interpreted automatically. C00p3r sent me some vector artwork and looked crisp. We thought about doing the badge in the shape of the sugar skull, but its sharp edges would have been dangerous to integrity and wearers.
The convention organizers preferred the solid regions to be filled in instead of the pure line art, but that meant problems with how clear the lines turned out. I made a sample with four different settings so the folks could pick which they liked best.
Since I had the badge created, I decided to make another for Grindfest. The boards didn't arrive in time, so I made another version that corrected a couple of components that were backward in the schematic.
Even the faulty badges were useful since the transistors could be shorted, and color changing LEDs in the light sockets produced a subtle effect. A coin cell battery did not have the available current to run nearly as well as AA batteries.
The resistor values needed tweaking. At first, the lights blinked at a frantic rate, but swapping for higher resistances produced slower brighter lights that I liked better. C00p3r liked ones that were faster than my choice, so we both kept lots of resistors and different sizes on hand.
I have not given up on EWC_Presenter, but I took a break from the project. I came back and implemented a soundscape. This took a couple of days to debug, but I lumped all the work into a single day's effort. I shot a forty-second video where I start at the low end of the potentiometer then work to the top in twenty seconds and back to the beginning. I also have a three-minute video where I move the potentiometer slower.
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
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.
Badge schematic and artwork
The first artwork lacked detail because it was a raster image interpreted automatically. C00p3r sent me some vector artwork and looked crisp. We thought about doing the badge in the shape of the sugar skull, but its sharp edges would have been dangerous to integrity and wearers.
3D view of a badge with white
The convention organizers preferred the solid regions to be filled in instead of the pure line art, but that meant problems with how clear the lines turned out. I made a sample with four different settings so the folks could pick which they liked best.
Image options
Since I had the badge created, I decided to make another for Grindfest. The boards didn't arrive in time, so I made another version that corrected a couple of components that were backward in the schematic.
Grindfest badge design
Even the faulty badges were useful since the transistors could be shorted, and color changing LEDs in the light sockets produced a subtle effect. A coin cell battery did not have the available current to run nearly as well as AA batteries.
Color-changing LEDs with different batteries
The resistor values needed tweaking. At first, the lights blinked at a frantic rate, but swapping for higher resistances produced slower brighter lights that I liked better. C00p3r liked ones that were faster than my choice, so we both kept lots of resistors and different sizes on hand.
Badges with different resistors
I have not given up on EWC_Presenter, but I took a break from the project. I came back and implemented a soundscape. This took a couple of days to debug, but I lumped all the work into a single day's effort. I shot a forty-second video where I start at the low end of the potentiometer then work to the top in twenty seconds and back to the beginning. I also have a three-minute video where I move the potentiometer slower.
(0:40) Transition through soundscape
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
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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