Design of PIC microcontroller-based high-capacity multi-channel data acquisition module

Using Microchip's PIC microcontroller and the flash memory chip, I designed a high -capacity multi-channel data acquisition module. In the design of the hardware circuit, Focus on the multi-channel data acquisition circuit for PIC16F877 MCU and SPI communication link between the microcontroller and FLASH chip. In software development, Developed A/D conversion process using the PIC16F877 MCU on-chip A/D converter module in C language, and the entire program of temperature acquisition using the DS18B20. The results show that: Developed a data acquisition module with low cost, simple structure and high reliability features.