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Advanced PCB Design for Microcontroller System with Power Management and Sensors

This document outlines the design and layout of a printed circuit board (PCB) for a microcontroller system featuring accelerometers, battery management, and various sensor integrations. Key components include a 2-cell Li-ion charger, 12V step-up converter, and multiple JST connectors for GPS, Wi-Fi, temperature, RPM sensors, and throttle positions. Design considerations emphasize minimizing noise interference from power components and maintaining signal integrity. The layout promotes optimal placement of power and ground connections alongside crucial signal lines to ensure reliable performance in a complex electronic system.

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Advanced PCB Design for Microcontroller System with Power Management and Sensors

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  1. P-REV Initial PCB Michael Connaboy Stephen Schiffli Ram Hudiara Win Than Aung

  2. Main Parts Microcontroller Accelerometer Battery and Power Components: 2 cell Li-ion charger 12 V step-up 5 V step-down 3.3 V step-down 2 Screw Terminals for Battery Connection Connectors: 1 – 6 pin JST for GPS 1 – 4 pin JST for WI-FI 4 – 2 pin JST for Temp Sensors 2 – 3 pin JST for RPM Sensors 1 – 2 pin JST for Throttle Position 1 – 2 pin JST for Break Position 1 – 6 pin JST for Steering Angle Sensor 2 – 2 pin JST for Throttle Input to Motor Controller 2 – 9 pin Serial Com Ports for Motor Controller 1 – USB connector for Atom

  3. Layout Overview Power Digital Analog Headers Connectors

  4. Layout • Keep noise from the step-up and step-down converters away from analog components • Get headers close to signals of interest but away from noisy power subsystem • Use single point connection for power and ground to different areas • Route a dedicated analog reference voltage line and filter with RC network

  5. PCB Decals

  6. PCB Decals

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