DSO 138 Oscilloscope DIY Kit

Note: This is an old model. For new purchase, DSO138mini is recommended for its better structure and reliability. Please see DSO138mini Oscilloscope DIY Kit

Major features of DSO138:

Analog bandwidth: 0 – 200KHz
Sampling rate: 1Msps max
Sensitivity: 10mV/Div – 5V/Div
Sensitivity error: < 5%
Vertical resolution: 12-bit
Timebase: 10us/Div – 500s/Div
Record length: 1024 points
Built-in 1KHz/3.3V test signal
Waveform frozen (HOLD) function available
Save/recall waveform

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See more pictures:
Overview / Assembled / In Use

Important Notes

It is assumed that users have adequate soldering skills and troubleshooting skills to assemble the DSO138 kits. It is not guaranteed that you will end up with a working device. However, we make as much effort as we can to approach that goal.

A DC 9V power supply (not included) is required to run the device. The power jack on the mainboard accepts a standard 5.5mm/2.1mm DC plug.

Specification

Vertical

Number of Channel: 1
Analog Bandwidth: 0 - 200KHz
Sensitivity: 10mV/Div - 5V/Div
Sensitivity error: < 5%
Resolution: 12-bit
Input Impedance: 1M ohm
Maximum Input voltage: 50Vpk
Coupling: DC, AC, GND

Horizontal

Max Real-time Sampling Rate: 1Msps
Timebase: 10us/Div - 500s/Div
Record Length: 1024

Trigger

Trigger Modes: Auto, Normal, Single
Trigger Types: Rising/falling edge
Trigger Position: 1/2 of buffer size fixed

Display

2.4-inch color TFT LCD with 320 x 240 resolution

Power Supply

9V DC (8 - 12V acceptable)
Supply Current: 120mA

Physical

Dimension: 117mm X 76mm X 15mm
Weight: 70 gram (not including cables)

Documents:

Users Manual [for 13801K/02K(discontinued)]
Users Manual [for 13803K/04K]
Assembly Drawing
Surface Mount Component Installation Guide
SMD Parts List
DSO138 Library
How to Use the DSO138 Library
Schematic of the LCD board
How to Upgrade firmware for DSO138

Firmwares:

Main: 113-13801-061 [ 2016.10.10 ]

SKU Number	Contents
13803K	One DSO138 kit with all SMD parts pre-soldered One BNC-clip cable Users Manual (English)
13804K	One DSO138 kit with only the major IC chip (the MCU) pre-soldered One BNC-clip cable Users Manual (English)