Audio Subsystem with 4 MEMS Microphones
This circuit is used in the food and beverage industry for recording the customer ordering some products. The circuit works in conjunction with a Raspberry Pi 3 board which has installed an AI application. The circuit is based on the ST ARM Cortex M3 Processor: STM32F107RCT6. The circuit can be powered from a 5V barrel connector or an USB2 interface. The board can automatically select the power interface using a power multiplexer. It is equipped with a USB2 COM compliant circuitry. The processor can be programmed using a 6 Pin Tag-Connect no legs connector. It has 4 MEMS microphone two for left side and two for right side. A 40 pin connector header was used for bridging this board with the Raspberry Pie 3 board. My responsibilities were to design the entire system circuitry, to create the schematics, schematic library, footprint library and layout the board.
自己紹介
I am an expert Electronics PCB Design Engineer with 10 years industry experience. I can design and implement analog, digital and high speed circuits, FPGA circuits and write firmware in VHDL and Embedded C. I can design rigid, rigid-flex or flex PCBs, also I can do 3D modelling of electronic components. You can find a lot of interesting projects on my site: [login to view URL]
