REV0.02 boards were on their way but the REV0.01 were handy so I pulled out a little trick to make use of them. Four colors was plenty to use for some fun.
This trick used fewer parts, but they were a bit more expensive. It still needed a battery holder and power, but the only other component was a pair of color-changing LEDs which are available on eBay and Amazon. They have a controller built in that cycles through the color spectrum with nothing more than power.
No other components were necessary so two leads from the transistor foot print were bridged which provided a path to ground for the LEDs.
Color-changing LEDs draw power a little differently and when they activate red, the power draw changes and it's possible to draw power away from another LED. This can be eliminated by parsing out the power or just supplying enough power that each can have enough.
The differences between the AA-powered badge and coin cell-powered badge were stark.On the right is the badge running on AA while the coin cell badge is on the left. The left was unreliable, prone to resetting, and dim. The redeaming grace was that it was light and low-profile.
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
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 in 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.
2019-05-22
Array of badges
This trick used fewer parts, but they were a bit more expensive. It still needed a battery holder and power, but the only other component was a pair of color-changing LEDs which are available on eBay and Amazon. They have a controller built in that cycles through the color spectrum with nothing more than power.
Parts for a makeshift color-changing badge
No other components were necessary so two leads from the transistor foot print were bridged which provided a path to ground for the LEDs.
Jumpered terminals for color-changing option on REV0.01
Color-changing LEDs draw power a little differently and when they activate red, the power draw changes and it's possible to draw power away from another LED. This can be eliminated by parsing out the power or just supplying enough power that each can have enough.
Extra-strength battery option
The differences between the AA-powered badge and coin cell-powered badge were stark.On the right is the badge running on AA while the coin cell badge is on the left. The left was unreliable, prone to resetting, and dim. The redeaming grace was that it was light and low-profile.
Light output with different battery options
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
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 in 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.
2019-05-22
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