Introduction - If you have any usage issues, please Google them yourself
The data acquisition system is based on SCM AT89C51 to complete, 4-way analog voltage through a common 8-bit A/D converter ADC0809 converted into a digital signal, by the microcontroller for data processing, and send the processed data LED display . Then through the common 8-bit D/A converter DAC0832 converts the digital data into analog, the oscilloscope for observation.