This is the very first and I hope not the last post of this blog.  With this event I want to share with you LED calculator. It is also my first project with Visual C++ Expression 2008, this  software development environment is free for students.

Calculator is capable of finding suitable standard E12 (10%) resistor value and power for one LED designs.  There also some tips for user to find LED forward voltage:

Calculator works on Windows XP, Vista, 7, but you have to install Microsoft .NET Framework 3.5

Download:

  LED resistor calculator v1.0 (56.1 KiB, 24,115 hits)