1.Better structure and smaller size
2.USB or battery powered.
3.External trigger input.
4.Serial output of waveform data.
5.General controller.
DSO138mini make MCU and LCD stay in one PCB to avoid problematic pin-header connections that was used in DSO138. This not only increase product reliability but also allow the main board to become a flexible general purpose controller.
DSO138mini's trigger can work reliably under 10us and 20us timebase settings.Waveform data can be outputted through serial port and the data can be easily displayed on PC with help of other software like Gnuplot. This photo shows the same waveform displayed on PC using Gnuplot.
Major features:
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
Serial waveform data output
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:
3.5V - 6V DC
Supply Current: 120mA@5V
Physical:
Dimension: 83mm X 72mm X 15mm
Weight: 50 gram (not including cables)
