Seeed DSO203 User Manual
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Seeed DSO203 User Manual

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Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution
of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business
relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components
to meet their specific needs.
With the principle of "Quality Parts,Customers Priority,Honest Operation,and Considerate Service",our business
mainly focus on the distribution of electronic components. Line cards we deal with include
Microchip,ALPS,ROHM,Xilinx,Pulse,ON,Everlight and Freescale. Main products comprise
IC,Modules,Potentiometer,IC Socket,Relay,Connector.Our parts cover such applications as commercial,industrial,
and automotives areas.
We are looking forward to setting up business relationship with you and hope to provide you with the best service
and solution. Let us make a better world for our industry!
Contact us
Tel: +86-755-8981 8866 Fax: +86-755-8427 6832
Email & Skype: info@chipsmall.com Web: www.chipsmall.com
Address: A1208, Overseas Decoration Building, #122 Zhenhua RD., Futian, Shenzhen, China
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Summary of Contents for Seeed DSO203

  • Page 1 Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components to meet their specific needs.

  • Page 2: Table Of Contents

    DS203 USER’S MANUAL Contents 1. Introduction Major Features Safety Operation conditions General Inspection Functional Inspection Firmware Upgrade 2. Oscilloscope Operations Interfaces and Buttons Screen Display Fields in the Input Area Fields in the Output Area Fields in the Measurement Area Parameter Menu Disk Menu 3.

  • Page 3: Major Features

    4 different application firmware. Schematics and source files are open-sourced to encourage improvements and innovations. Major Features This pocket-size oscilloscope DSO203 helps you test electronic devices, and measure relevant electronic signal. Its features include:  Full color 3” TFT LCD display, 400x240 pixels.

  • Page 4: General Inspection

    2. Turn on the POWER switch. The homepage of the DSO203 will be displayed. 3. If DSO203 does not turn on, connect it to a computer through supplied USB cable to recharge the battery, until the red charging LED turns off.

  • Page 5: Interfaces And Buttons

    2. Operating DSO203 Oscilloscope Interfaces and Buttons. DSO203 is a pocket size Digital Storage Oscilloscope, measured about 4”x2-1/2”x1/2”. Its front view and side views are shown in the following figure: , Disk ■, Parameter ●, On the top edge, there are four buttons, as seen from left to right: Run Jump ▲;...

  • Page 6: Screen Display

    Screen Display DSO203 has a 3” full color TFT LCD display to show waveforms and all relevant information. It is a challenging task to place all the information on such a small display, and it is also difficult for the user to navigate through the maze of menus and functions with only 6 buttons.

  • Page 7: Fields In The Input Area

    only moves the selected fields within one area. The Jump ▲ button allows Navigate jumping from one area to another. Once jumped into an area, the Navigate switch will only move selected Menu in the same area, until the Jump Button is pressed. To enter the Output Area to change fields H and I, you must first move to Field G and then press the Select switch to navigate among the G-I fields in the Output Area.

  • Page 8: Fields In The Measurement Area

    move to Menu G and then press the Select switch to navigate among the G-I Menus. Fields in the Measurement Area Fields and their functions in the Measurement Area: Field Name Function Operating Instruction Trigger Trigger mode: Scroll to choose trigger mode. Falling edge Press to choose channel (different colors).
  • Page 9 socket, and another one into the CH_B socket. Make sure that the probe switches are set to 1X. Scroll Navigate to Menu G. Scroll to select a square wave output. Press navigate to Menus H and I, and scroll to select 1KHz frequency, and 50% duty cycle. Now, press ●...

  • Page 10: Disk Menu

    Adjust backlight brightness Scroll to adjust backlight brightness. Press confirm. Buzzer Adjust buzzer volume Scroll to adjust buzzer volume. Press confirm. Standby Choose screensaver Press to confirm. Press ■ to calibrate. Press Calibrate Calibrate DSO203 (make sure to confirm CH_A is grounded)

  • Page 11: Example 1. Measure Simple Signals

    3. Examples Example One：Measure simple signals It is very easy to observe unknown signals in a circuit with DSO203. You can see the signal traces, and measure the frequency and peak-to-peak values of the signal. In this simple example, following these steps: 1.

  • Page 12: Example 3. Measure With Cursors

    You can observe the waveforms before and after the triggering event. Example Three: Measurements with Cursors There are several measuring cursors in DSO203. They are displayed a narrow dotted horizontal and vertical lines across the display screen. They are used to measure the time and voltage in the signal traces.

  • Page 13: Example 4. Compare Waveforms

    Example Four: Comparison of Waveforms REC_A/ REC_B/ REC_C/ REC_D function in E field can be used to compare a standard signal with an unknown signal. Follow these steps: 1. Input a standard signal to CH_A. Press ■, and choose Save Dat 01 to save waveform, as shown in Figure 4.1: 2.

  • Page 14: Example 5. Save Waveform Images

    Figure 4.2 Figure 4.3 Example Five: Save waveform images Sometimes waveform images need to be archived and analyzed on PC platform. Follow these steps: 1. Acquire a signal trace. 2. Press ■ , and choose Save Bmp 01. 3. Scroll to choose the correct file number, and then press to confirm.

  • Page 16: Tips

    Then Seeed Studio brought out the DSO Nano Oscilloscope. Still a bit slow, but quite usable. DSO is just getting better all the time, and now we have DSO203, sampling at 72 MHz. It is the pocket oscilloscope we dreamed about 10 years ago. It is reality.

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Ds203

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