This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.
Tools
In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.
Textbook
In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
Textbook
Shown here is the schematic symbol for a resistor: What is the purpose…
Worksheets - Adaptive Lighting
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Tools
In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
Textbook
In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.
Textbook
What does it mean for an object to have an electric charge? Give an…
Worksheets - Adaptive Lighting
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Textbook
If we were to express the series-connected DC voltages as phasors…
Worksheets - Adaptive Lighting
Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.
Tools
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
What is the purpose of the switch shown in this schematic diagram?
Worksheets - Adaptive Lighting
What is the purpose of a seven-segment decoder circuit? What is a…
Worksheets - Adaptive Lighting
In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.
Textbook
In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.
Textbook
Electromechanical watt-hour meters use an aluminum disk that is spun…
Worksheets - Adaptive Lighting
It is fairly important to use large value resistors (10 MΩ works…
Worksheets - Adaptive Lighting
What is the purpose of a seven-segment decoder circuit? What is a…
Worksheets - Adaptive Lighting
The concept of a mathematical power is familiar to most students of…
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Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
Identify each of these logic gates by name, and complete their…
Worksheets - Adaptive Lighting
Dielectric strength in kilovolts per inch (kV/in): Material*…
Textbook
Digital computers communicate with external devices through ports:…
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Label where each of the following electrical quantities would be found…
Worksheets - Adaptive Lighting
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
If we take the equivalent circuit of an SCR and add another external…
Textbook
(Template)
Worksheets - Adaptive Lighting
Read-only memory (ROM) is similar in design to static or dynamic RAM…
Textbook
Try out our Resistor Color Code Calculator in our Tools section.…
Textbook
In this hands-on electronics experiment, build a Class B push-pull audio amplifier to drive a speaker and learn about crossover distortion and how to minimize it using negative feedback.
Textbook
OK, so how exactly can we represent AC quantities of voltage or…
Textbook
Counting practice: count from zero to thirty-one in binary, octal, and…
Worksheets - Adaptive Lighting
Calculate the voltage output by the secondary winding of a transformer…
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A serial-in, parallel-out shift register is similar to the serial-in,…
Textbook
Textbook
Don’t just sit there! Build something!! Learning to mathematically…
Worksheets - Adaptive Lighting
If we connect the output of an op-amp to its inverting input and apply…
Textbook
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