“This device will allow you to:
1. Test low power LEDs, including surface mount types,
2. Display its intrinsic voltage drop (VLED),
3. Adjust its brightness by changing the current through it (iLED),
4. Choose any voltage up to 9V that you plan to use the LED for in a project (Vtarget), and
5. Based on the above parameters, will display the proper resistance to use for that LED (RLED).
6. Detect shorted contacts during testing.
7. Control contrast/brightness of the LCD.”