DSO138mini make MCU and LCD stay in one PCB to avoid problematic pin-header connections that was used in DSO138. This not only increases product reliability but also allows 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.
Number of Channel: 1
Analog Bandwidth: 0 - 200KHz
Sensitivity: 10mV/Div - 5V/Div
Sensitivity error: < 5%
Input Impedance: 1M ohm
Maximum Input voltage: 50Vpk
Coupling: DC, AC, GND
Max Real-time Sampling Rate: 1Msps
Timebase: 10us/Div - 500s/Div
Record Length: 1024
Trigger Modes: Auto, Normal, Single
Trigger Types: Rising/falling edge
Trigger Position: 1/2 of buffer size fixed
2.4-inch color TFT LCD with 320 x 240 resolution
3.5V - 6V DC
Supply Current: 120mA@5V
Dimension: 85mm X 75mm X 15mm
Weight: 50 gram (not including cables)
There are a few optional parts that can be chosen to make the oscilloscope even more complete:
BNC connector. The kit comes with a two-pin header for the simple hook probes (see the manual). This connector replaces the two-pin header and will allow you to connect to standard professional BNC probe.