Product: DSO 138 Oscilloscope Kit Open Source with Probe 2.4" TFT 1Msps Digital Oscilloscope Kit with DSO 138 Case + Probe 13803K for Electronic Learning Set
Brand: DORHEA
Color: DSO 138
Specifications:
 Maximum Real-time Sampling Rate: 1Msps
 Accuracy: 12Bit
 Sampling Buffer Depth: 1024 bytes
 Analog Bandwidth: 0-200KHz
 Vertical Sensitivity: 10mV / Div - 5V / Div (1-2-5 progressive manner)
 Input Impedance: 1MΩ
 Maximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)
 Coupling Modes: DC / AC / GND
 The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)
 Supply Voltage: DC 9V
 PCB Size: 117 X 76mm / 4.6 X 3in
 Screen Size: 52 X 40mm / 2 X 1.57in
 Tips:
 This DIY kit is soldered ! (With Transparent shell)
 The method of opening/closing waveform parameters display: put the cursor at the time base position, and long press the [OK] key.
 Save waveform method: press [SEL] and [+] at the same time.
 The method of calling out saved waveform: press [SEL] and [-] at the same time.
 Method to enter the test mode: press [OK] and press [RESET] button. 
If you see the LED flash quickly, it means that the PB or PC port of the single-chip computer (these ports contain the connection with the LCD) has a short circuit, which needs to be found and removed.
 If you see an LED flashing in a period of about 4 seconds, you can use a voltmeter to find possible openings in the connection lines related to the MCU port. Please refer to the instructions for details.
 Package Included:
 1 X DSO 138 Digital Oscilloscope Kit
 1 X Probe
 3 X User Manual(English)
 1 X DSO 138 Case
This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display screen, can be used as ARM test development board.Can freeze at any time waveform display (HOLD function).Comes 1Hz /3.3V square wave test signal source.
With automatic, regular and one-shot modes, easy to capture the moment waveform.Available rising or falling edge trigger.Observable previous trigger waveform (negative delay).
With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.Waveform storage function: will not lose the waveform after power off.
Partially open-sourced,the MCU has been programmed.The oscilloscope circuit boards components are pre-soldered, no need soldered by yourself.The case is unassembled and requires assembly.
Adjustable vertical displacement,and with instructions,which increase the likelihood of adding different features or developing new applications on the hardware for users.

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