Beginner Analog Discovery, Module 1
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DC Power Supplies
Applying voltage using the Analog Discovery's Voltage instrument to a diode to produce light.
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26.3K
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Measuring DC Voltages
Utilize the Analog Discovery's Voltmeter instrument to measure voltage in a circuit.
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15.9K
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Project 1: Waveform Gene...
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.
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14.9K
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Project 2: Waveform Gene...
Use the arbitrary waveform generator on the Analog Discovery to apply sinusoidal and swept sinusoidal voltages to a speaker.
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15.6K
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Project 3: Waveform Gene...
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.
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10.5K
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Project 4: Waveform Gene...
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.
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14.4K
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Project 5: Waveform Gene...
Use the Analog Discovery's ability to import "custom" waveforms from a file.
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11.2K
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Project 6: Waveform Gene...
Use the Analog Discovery's ability to create "custom" waveforms according to a mathematical function.
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9.38K
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Project 1: Oscilloscope
Introduces the Analog Discovery's Oscilloscope instrument. Explains the basics of the ways in which voltages are acquired and displayed by the oscilloscope.
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21.0K
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Project 2: 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 easie...
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11.9K
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Project 3: Oscilloscope
How to use some of the most basic and common oscilloscope tools to simplify the measurement process.
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13.4K
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Project 4: Oscilloscope
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...
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14.2K
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Project 5: Oscilloscope
Use the Analog Discovery to plot the voltage-current characteristics of a light emitting diode.
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16.6K
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Project 6: Oscilloscope
Export the voltage-current data of a light emitting diode.
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13.0K
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Project 7: Oscilloscope
Acquiring vibration data from the piezoelectric sensor from the analog parts kit.
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9.08K
DC Power Supplies
Applying voltage using the Analog Discovery's Voltage instrument to a diode to produce light.
Measuring DC Voltages
Utilize the Analog Discovery's Voltmeter instrument to measure voltage in a circuit.
Project 1: Waveform Generator
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.
Project 2: Waveform Generator
Use the arbitrary waveform generator on the Analog Discovery to apply sinusoidal and swept sinusoidal voltages to a speaker.
Project 3: Waveform Generator
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.
Project 4: Waveform Generator
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.
Project 5: Waveform Generator
Use the Analog Discovery's ability to import "custom" waveforms from a file.
Project 6: Waveform Generator
Use the Analog Discovery's ability to create "custom" waveforms according to a mathematical function.
Project 1: Oscilloscope
Introduces the Analog Discovery's Oscilloscope instrument. Explains the basics of the ways in which voltages are acquired and displayed by the oscilloscope.
Project 2: 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.
Project 3: Oscilloscope
How to use some of the most basic and common oscilloscope tools to simplify the measurement process.
Project 4: Oscilloscope
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.
Project 5: Oscilloscope
Use the Analog Discovery to plot the voltage-current characteristics of a light emitting diode.
Project 7: Oscilloscope
Acquiring vibration data from the piezoelectric sensor from the analog parts kit.
Audio and .wav Files
Project 4: Waveform Generator
Audio and .wav Files
Project 4: Waveform Generator
Introduction
In this experiment, we will use our Analog Discovery™ to play back .wav files through the speaker included in the analog parts kit. The arbitrary waveform generator (AWG) instrument has the capability of importing data in several formats—.wav files are one of these formats.
The Analog Discovery can only import relatively small .wav files. A few files which meet the Analog Discovery's requirements can be found at the link to the right.
Before you begin, you should:
- Be able to use the Analog Discovery waveform generator to apply Sinusoids and Swept Signals to a circuit.
- Define the sampling rate and sampling frequency of a signal.
After you're done, you should:
- Use the Analog Discovery waveform generator to play audio files in .wav format.
Inventory:
| Qty | Description | Typical Image | Schematic Symbol | Breadboard Image |
|---|---|---|---|---|
| 1 | Buzzer/Speaker |  |
 |
 |
| The Buzzer/Speaker in the analog parts kit has two terminals. If a time-varying voltage is applied between the terminals a film in the speaker vibrates, converting the voltage waveform to a pressure waveform with a similar “shape”. Note: The speaker in your parts kit may have different markings than the one pictured. | ||||
Procedures
Shortcut!
If you have completed the Sinusoids and Swept Signals project and your circuit is still intact, feel free to skip to Step 2 of this exercise.
Step 1: Understanding the Circuit
A. Circuit Schematic
Connect one terminal of the speaker to the W1 terminal of your Analog Discovery.
Connect the other terminal of the speaker to a ground terminal on your Analog Discovery.
B. Create Circuit
Insert the terminals of the speaker into your breadboard so that they are in different rows.
Connect W1 (the yellow wire) to one terminal of the speaker.
Connect ground (
, the black wire) to
the other speaker terminal.
Step 2: Set up Instruments
A. Open WaveGen Instrument
Open WaveForms™ to view the main window.
Click on the WaveGen icon to open the waveform generator.
Step 3: Experiment
A. Import and Play a .wav File in WaveGen
- Click on Run AWG1 or Run All. You should hear a sound from your speaker which corresponds to the sound on the .wav file you imported. (To check whether the sound is appropriate, you can double-click on the file name in Windows Explorer. Microsoft will play the file for you automatically. Microsoft won't, however, allow you to filter or otherwise modify the audio file. The Analog Discovery will let you process the signal, as we will see later.)
Test Your Knowledge!
- Try changing the playback frequency of the file. For example, change the
Frequency to half or double the sampling rate of the file.
- Do the results agree with what you might expect?
- Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2014 Digilent Inc. All rights reserved.
- Circuit and breadboard images were created using Fritzing.