FemtoBuck Constant Current LED Driver Hookup Guide v13
Contributors:
SFUptownMaker
SFUptownMaker Introduction
Note: This tutorial is for the latest version of the FemtoBuck, V12. If you have an older version of the FemtoBuck, please consult this guide.
The FemtoBuck is a small-size, single-output constant current LED driver. By default, the FemtoBuck is driven at 330mA. That current can be reduced by either presenting an analog voltage or a PWM signal to the board. It can be increased to 660mA by closing a solder jumper on the board, as described later in this tutorial.
Suggested Reading
Here are some topics you should know before using the FemtoBuck. Have a look if you need more information.
Voltage, Current, Resistance, and Ohm's Law
Learn about Ohm's Law, one of the most fundamental equations in all electrical engineering.
Resistors
A tutorial on all things resistors. What is a resistor, how do they behave in parallel/series, decoding the resistor color codes, and resistor applications.
Light-Emitting Diodes (LEDs)
Learn the basics about LEDs as well as some more advanced topics to help you calculate requirements for projects containing many LEDs.
Electric Power
An overview of electric power, the rate of energy transfer. We'll talk definition of power, watts, equations, and power ratings. 1.21 gigawatts of tutorial fun!