Kits using ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display can be used as ARM test development board.
Available source, Capable people can be secondary development on the basis of the suite, for example, it can be changed to Millivoltmeter, data loggers, and so on (we don’t supply any technical support about that).
The circuit is simple and the kit is inexpensive
PCB size: 117 x 76mm
Screen size: 52 x 40mm
1X Fully Assembled DSO138 2.4″ TFT Digital Oscilloscope