My name is Greg Winn I am a web developer, specializing in web application development. Take a look at some of my projects, then drop me a line.
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Most of my projects can be followed on Github (@gregwinn)
Recently I needed to calculate a bunch of LED current limiting resistor values for different colored LED’s. In order to quickly do this I created a simple TI BASIC program that runs on my TI-Nspire CX CAS calculator based on the math used to calculate the value.
This very simple math problem will give you the current limiting resistor value for any LED!
# # R = The Resistor value # R = (VCC - Forward Voltage) / Forward Current
Let me know if you have any questions or edits.