PCB Design - elestrategaactual/Didactic-Measuring-Node-for-Equilibrium-Evaluation GitHub Wiki
PCB Design Overview
The PCB design for this project includes several key components and features to ensure functionality and expandability. Below is a detailed overview of the components and layout:
Components and Layout
Figure 1: Schematic PCB Design
Buttons
- Quantity: 3
- Type: Momentary push buttons
- Placement: Strategically placed for easy access and user interaction.
- Usage: These buttons can be used for various inputs such as mode selection, resetting the device, or triggering specific functions.
Arduino Space
- Placement: Centralized to minimize wiring complexity and optimize space.
- Usage: The Arduino Nano serves as the main microcontroller for the project.
Headers
- Type: Standard 0.1-inch pitch headers.
- Placement: Adjacent to the Arduino space for easy connectivity.
- Usage: These headers allow for future connections and expansions, such as adding sensors or additional peripherals.
Buzzer
- Type: Piezoelectric buzzer.
- Placement: Near the edge of the PCB to minimize interference with other components.
- Usage: Used for audio alerts or notifications.
RGB LED
- Type: Common cathode RGB LED.
- Placement: Visible and easily accessible for visual indications.
- Usage: Provides multicolor feedback based on the device's status or mode.
Battery Holders
- Type: Slots for standard AAA cell batteries or similar.
- Placement: Positioned in the back to balance the distribution of the PCB.
- Usage: Powers the device. Ensures easy replacement and secure connection.
Vibration Motor
- Type: Small DC vibration motor.
- Placement: Positioned to minimize interference with other components.
- Control: Driven by a MOSFET used as a switch to handle the current without burdening the Arduino.
- Usage: Provides haptic feedback or alerts.
Switch
- Type: Toggle switch.
- Placement: Easily accessible on the edge of the PCB.
- Usage: Used to turn the device on and off.
PCB Layout Considerations
- Component Placement: All components are placed with consideration for optimal routing, minimal interference, and ease of access for the user.
- Power Distribution: Power traces are designed to ensure stable and sufficient power supply to all components.
- Mounting Holes: Included for secure mounting of the PCB within an enclosure or other housing.
- Silkscreen Labels: Clear labeling of components, pins, and headers for easy assembly and troubleshooting.
This design ensures a robust, functional, and expandable PCB suitable for the project's requirements while allowing for future enhancements.