Monthly Archives: April 2017

Creating Custom 3D Printed LED Bar Graphs

While building my zombie containment unit, I decided I wanted some LED displays or bar graphs to complement the containment status video running on the smaller secondary video monitor. Some other containment units used LED air pressure gauges from eBay. … Continue reading

Posted in 3D Printing, Fusion 360, Matlab | Comments Off on Creating Custom 3D Printed LED Bar Graphs

Hacking Allen Bradley Cluster Pilot Lights

I was recently working on a project and wanted to incorporate one of Allen Bradley’s four-position, four-color cluster pilot lights into the project. A quick search of eBay found several lights with the lens colors I wanted but not at … Continue reading

Posted in Uncategorized | Comments Off on Hacking Allen Bradley Cluster Pilot Lights

Driving a SparkFun 48-Segment RGB LED Bar Graph

I recently picked up a 48-segment RGB LED bar graph from SparkFun. The bar graph’s 144 LEDs are arranged in a common-anode matrix of 16 x 9 LEDs. I was hoping to drive the display with something like a Maxim … Continue reading

Posted in Uncategorized | Comments Off on Driving a SparkFun 48-Segment RGB LED Bar Graph