DSO138 oscilloscope production kit features: For electronic production training, the description of the complete and detailed information, including circuit diagrams, production instructions, instructions for use, troubleshooting methods, etc., the production success rate is high. Players are strongly advised to buy finished products, because the parts are selected by players who need certain knowledge and technical foundation. A wide variety of components, suitable for students to identify components, in-line component welding, patch component welding training. Students can obtain a practical tool at the same time of production, which can effectively observe and measure signal waveforms in many occasions such as audio, video synchronization, low-frequency switching power supply, infrared receiving and transmitting, etc., increasing learning interest and improving learning effect. The kit uses the ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display that can be used as an ARM development test board. A capable friend can make a secondary development based on the kit, for example, it can be changed to a millivolt meter, a data logger, and so on. The circuit is simple and reliable, high quality and low price Characteristic indicators:  

Real-time sampling rate: 1Msps Accuracy: 12Bit Sample buffer depth: 1024 bytes Analog bandwidth: 0 - 200KHz Vertical sensitivity: 10mV/Div – 5V/Div (inward by 1-2-5) Vertical displacement adjustable with indication Input impedance: 1MΩ High input voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe) Coupling methods include DC/AC/GND Horizontal time base range: 10μs/Div – 50s/Div (inward by 1-2-5) Automatic, regular and single trigger mode for easy capture of instantaneous waveforms Trigger with rising or falling edges Trigger level position adjustable with indication Observe the waveform before the trigger (negative delay) The waveform display can be frozen at any time (HOLD function) Self-contained 1KHz / 3.3V square wave test signal source