Applying voltage using the Analog Discovery's Voltage instrument to a diode to produce light.
Utilize the Analog Discovery's Voltmeter instrument to measure voltage in a circuit.
Using the Analog Discovery's arbitrary waveform generator to apply a time-varying signal to an LED to make it flash on and off. This project builds off of the previous Analog Discovery material.
Use the arbitrary waveform generator on the Analog Discovery to apply sinusoidal and swept sinusoidal voltages to a speaker.
Use the arbitrary waveform generator on the Analog Discovery to create frequency modulated signals and apply them to a speaker. This project builds off of the previous Analog Discovery material.
Use the Analog Discovery to play back .wav files through the speaker included in the analog parts kit. This project builds off of material presented in previous Analog Discovery projects.
Use the Analog Discovery's ability to import "custom" waveforms from a file.
Use the Analog Discovery's ability to create "custom" waveforms according to a mathematical function.
Introduces the Analog Discovery's Oscilloscope instrument. Explains the basics of the ways in which voltages are acquired and displayed by the oscilloscope.
The Arbitrary waveform generator instrument will be used to apply relatively rapidly varying wave forms to the oscilloscope, and then triggering of the waveform will be used to make the waveform easier to view and analyze.
How to use some of the most basic and common oscilloscope tools to simplify the measurement process.
Introduces the use of the math channel function on the Analog Discovery. This function allows the user to perform a wide variety of mathematical operations, all of which can be applied to the voltages being measured.
Use the Analog Discovery to plot the voltage-current characteristics of a light emitting diode.
Acquiring vibration data from the piezoelectric sensor from the analog parts kit.
This experiment introduces the Analog Discovery's™ arbitrary waveform generator instrument. Arbitrary waveform generators, often called AWGs or simply waveform generators, produce a variety of time-varying signals. Most, including the Analog Discovery's AWG, will also produce a constant voltage. This constant voltage level is typically variable, unlike the fixed voltage produced by the Voltage instrument.
Most voltages produced by waveform generators are periodic. This means that they repeat themselves at a set rate. This rate is called the frequency of the signal, which is the number of times that the signal repeats itself each second. Units of frequency are cycles per second, or Hertz (abbreviated Hz). For more info on periodic signals, follow the link provided in the related materials section.
In this experiment, we will use the AWG to apply a time-varying signal to an LED to make it flash on and off. This will allow us to explore some of the features of the waveform generator and get a physical feeling for some of the parameters associated with periodic signals.
Qty | Description | Typical Image | Schematic Symbol | Breadboard Image |
---|---|---|---|---|
1 | LED | ![]() |
![]() |
|
1 | 100Ω resistor | ![]() |
![]() |
If you have completed the Voltage Instrument project and your circuit is still intact, just replace the V+ connection (the red wire) with the W1 connection (the yellow wire) as shown in Step 1 of this project. Then open the WaveGen instrument and apply power to the circuit, per Step 2 of this exercise.
Use W1 to apply voltage across the LED to make it “flicker”.
Connect W1 (the yellow wire) to the resistor.
Connect the resistor to the LED anode.
Open WaveForms™ to view the main window.
Vary the frequency between about 100mHz and 100Hz and find out at what frequency the diode seems to be on all the time.
Decrease the amplitude and determine the voltage at which the LED no longer turns “ON”.