Smart Mirror
Using the MagicMirror open source, modular smart mirror platform for the HUD. Modules include: Synced Google Calender, Local Weather, Daily Quotes, and more.
Motion Detection using RCWL-0516 Doppler Radar Microwave Sensor. Offers omni-directional detection, longer range, and can detect through glass (vs. PIR: limited detection angle, cannot detect through glass, and the biggest offender, looks like a wart). Minor caveat with RCWL-0516, it detects too well. False positives from movement in adjacent rooms can occur. To adjust the range, I replaced a specific SMD resistor with a Trim Pot (learn more in links below).
Custom written Python scripts: Primary script provides communication between Motion Sensor, LEDs, Monitor, and Pi (see video demo). Another script to automate Cooling Fan, integrated Transistor and Flyback Diode to control on/off state. Scripts run continuously on boot using cron jobs.
16″x45″ Two-way glass mirror sourced locally.
| Category | Description | Amount |
| CanaKit Raspberry Pi 3 B+ w/ Case and 2.5A Power Supply | $60.00 | |
| SanDisk 16GB MicroSD | $6.00 | |
| RPI Cooling Fan | $5.00 | |
| PIR Motion Sensors | Detects Infrared Radiation from body | $16.00 |
| Jumper Wires | For GPIO connections | $7.00 |
| RPI Camera Module | $13.80 | |
| 5m WS2812B LED Strip. 30p | – | $18.99 |
| 5v 10a PSU | – | $22.50 |
| Female DC Power Adapter 10pcs | $8.45 | |
| 90deg HDMI Adapter 6pack | $9.00 | |
| Frame Hardware | ||
| 3M VHB 4910 Heavy Duty Mounting Tape – 0.75 in. x 15 ft | $21.00 | |
| Wood Screw #6 3/4″ 100pcs | $4.68 | |
| Corner Brace 1.5″ 24pcs | $14.00 | |
| 1×3″ 6ft Pine Board | x2 | $15.00 |
| 16×45″ Two Way Mirror | Alamo Glass ATX | $155.00 |
| French Cleat hvy duty Hangman Z-Hanger | $13.43 | |
| Total | $389.85 |
RPi 3B+
- 5.1 Volts
- Recommended PSU Current Capacity – 2.5A
- Max Total USB Peripheral Current Draw – 1.2A
- Typical Bare Board Active Current Consumption – 500mA
WS2812B LED. 5meters. 30p/m –
- 5 Volts
- 9amps
- 9w/m, total 45 Watts
“LED under full load (= maximum brightness) needs about 60mA. At 5m and 30 LEDs / m, this is 9 amps.”
Power Supply
- 5 Volts
- 10 Amps
“AC/DC Converter 100-240V AC to DC 5 Volt 50W 10Amp 9A 8A 7A 2A Transformer”
Barrel Connector
- PSU, Rewiring for LEDs.
- 114in = 9.5ft = 3m.
- 60leds/m. 180 total.
- Max draw per = 60mA
- 114in = 9.5ft = 3m.
- 10.8amps at max
- Mini power strip to socket in:
- Pi, Monitor, LEDs
- Motion Detection sensitivity adjustment
- Cronjob for turning off and on during day and night
- Pi fan install w/ resistor
- Determine size of wood for frame
- Depth of wood
- Determine location of vertical monitor
- How to attach frame to mirror?
- 3M VHB Double Sided Tape
- How to hold monitor?
- Disassemble Monitor, electrical tape edges
- Screw in L brackets
- How to hang frame?
- French cleat
- Ikea Brackets
- L Bracket
- Black out backing?
- Black Vinyl/Paper?
- Paint Wood Black with BASICS Black Acrylic paint
- Minimize Frame Depth – 90 Deg HDMI
Inspiration
