DSO138 Oscilloscope Pre-Built

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DIY

Internal Reference: MOD-174

DSO138 Oscilloscope Pre-Built

This DSO138 digital oscilloscope uses an ARM Cortex-M3 processor and includes a 2.4-inch TFT screen. It's easy and reliable for circuit testing. It can display frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.

DSO138 Oscilloscope Features:
Secondary development can be done with the DS0138, for example, it can be changed to a Millivoltmeter, data logger, etc.
Adjustable vertical displacement.
Automatic, regular, and one-shot modes, easy to capture the moment waveform.
Available rising or falling edge trigger.
Observable previous trigger waveform (negative delay).
Can freeze a waveform display at any time (HOLD function).
Comes with a 1Hz /3.3V square wave test signal source.
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.
Short-circuit and open-circuit detection: can help the user to find soldering problems.
TFT controller recognition function.

DSO138 Oscilloscope spec:
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
Product Documents and firmware: (click to open)
Users Manual [for 13801K/02K(discontinued)]
Users Manual [for 13803K/04K]
Assembly Drawing
Surface Mount Component Installation Guide
SMD Part List
Firmware
Source codes [basic version]
DSO138 Library
How to Use the DSO138 Library
Schematic of the LCD board
How to Upgrade firmware for DSO138