DSO138 2.4" TFT Digital Oscilloscope

DSO138 was designed as a training oscilloscope kit. Simplicity in structure and easiness in assembly/operation are the main targets of its design. For these purposes, DSO138 applies mostly through-hole parts and the heart of DSO138 is a Cortex-M3 ARM processor (STM32F103C8) from ST. It also uses 2.4-inch TFT LCD (320 X 240 dotmatrix, 262K colors) as its display element that will display nice clear waveforms. Detailed assembly instructions are provided in combination with troubleshooting guide and schematic.
This DSO138 kit has all SMD parts pre-soldered. The MCU has been pre-programmed and no re-programming required.

Performance index 
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 )
Adjustable vertical displacement , and with instructions
Input impedance : 1MΩ
Maximum input voltage : 50Vpp (1: 1 probe ), 400Vpp (10: 1 probe )
Coupling modes include DC / AC / GND
The horizontal time base range : 10μs / Div - 50s / Div ( 1-2-5 progressive manner )
With automatic, regular and one-shot mode , easy to capture the moment waveform
Available rising or falling edge trigger
Adjustable trigger level position , and with instructions
Observable trigger waveform before ( negative delay )
Can freeze at any time waveform display (HOLD function )
Comes 1Hz /3.3V square wave test signal source 

1 x DSO138 Digital Oscilloscope assembled