Smart Mirror

Project Overview

A DIY smart mirror that displays information like time, weather, and news. It uses a Raspberry Pi, a monitor, and a two-way mirror.

Bill of Materials (BOM)

• Raspberry Pi (3 or 4)
• a monitor
• a two-way mirror film or acrylic sheet
• a PIR sensor for motion detection
• LED COB lights with a dimmer
• 3D printed brackets
• and wood for the frame.

Circuit Diagram & Component Arrangement

Follow the wiring diagram below. Each component connects to specific pins on the microcontroller. Use a breadboard for prototyping and ensure all connections are secure before powering on.

Wiring Summary: The monitor connects to the Raspberry Pi via HDMI. The PIR sensor connects to the Pi's GPIO pins to trigger the display. LED lights are wired to a separate power supply and dimmer for backlighting.

View circuit diagram

Step-by-Step Procedure

1. Step 1 - Prepare Components: Gather all components from the BOM. Inspect for damage and verify ratings.
2. Step 2 - Breadboard Layout: Place the microcontroller on the breadboard. Arrange components for clear wiring paths.
3. Step 3 - Power Connections: Connect VCC and GND first. Ensure proper polarity for polarized components.
4. Step 4 - Signal Wiring: Connect sensors and actuators per the wiring table. Double-check pin assignments.
5. Step 5 - Upload Code: Connect USB, load the sketch, and upload. Verify serial output if applicable.
6. Step 6 - Test & Calibrate: Power on and test each function. Calibrate sensors if needed.
7. Step 7 - Enclosure (Optional): Mount in a 3D-printed or custom enclosure for durability.

Safety Notes

• Always disconnect power before making wiring changes.
• Use appropriate eye protection when soldering.
• Adult supervision is required for makers under 16.
• Do not exceed voltage ratings of components.

Code & Resources

Download code and schematics

Attribution

Source: https://www.diymachines.co.uk/how-to-build-a-smart-magic-mirror. Varies by guide, often for personal use.