This project creates a smart mirror that displays information (time, weather, calendar) when someone approaches, and turns off the display when no one is present. The PIR sensor detects motion and triggers the display via Raspberry Pi. The two-way mirror makes the display invisible when off, giving it that “magic” look.<\/p>\n
Difficulty:<\/strong> Advanced A PIR sensor mounted on the mirror frame detects when someone approaches. A Raspberry Pi runs MagicMirror software that displays information. When motion is detected, the Pi turns on the monitor (or wakes from sleep). After a period of no motion, it turns off the display to save energy and preserve the mirror effect.<\/p>\n \u8868<\/p>\n Add to \/etc\/rc.local:<\/p>\n This smart mirror combines functionality and style, displaying useful information only when you need it. The PIR sensor makes it energy-efficient and maintains the magic mirror effect when not in use.<\/p>\n","protected":false},"excerpt":{"rendered":" Project Overview This project creates a smart mirror that displays information (time, weather, calendar) when someone approaches, and turns off the display when no one is present. The PIR sensor detects motion and triggers the display via Raspberry Pi. The two-way mirror makes the display invisible when off, giving it that “magic” look. Difficulty: Advanced […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-3935","post","type-post","status-publish","format-standard","hentry","category-projects"],"blocksy_meta":[],"yoast_head":"\r\n
\nEstimated time:<\/strong> 4-6 hours
\nEstimated cost:<\/strong> $100-150<\/p>\nHow It Works<\/h2>\n
Materials Needed<\/h2>\n
\n
Smart Mirror Construction<\/h2>\n
\n
Circuit Diagram<\/h2>\n
Connection Table<\/h3>\n
\n\n
Component<\/th>\n Pin<\/th>\n Raspberry Pi GPIO<\/th>\n<\/thead>\n \nPIR Sensor<\/th>\n OUT<\/th>\n GPIO 4<\/th>\n Relay Module<\/th>\n IN<\/th>\n GPIO 17<\/th>\n<\/tbody>\n Raspberry Pi Setup<\/h2>\n
\n
git clone https:\/\/github.com\/MichMich\/MagicMirror\ncd MagicMirror\nnpm install\nnpm start<\/pre>\n<\/li>\n
Python Script for Motion Detection<\/h2>\n
#!\/usr\/bin\/env python3\n# Smart Mirror Motion Detection\nimport RPi.GPIO as GPIO\nimport subprocess\nimport time\n\nPIR_PIN = 4\nRELAY_PIN = 17\n\nGPIO.setmode(GPIO.BCM)\nGPIO.setup(PIR_PIN, GPIO.IN)\nGPIO.setup(RELAY_PIN, GPIO.OUT)\nGPIO.output(RELAY_PIN, GPIO.LOW)\n\n# Track display state\ndisplay_on = False\nlast_motion = 0\nTIMEOUT = 60 # seconds\n\ndef monitor_on():\n global display_on\n if not display_on:\n GPIO.output(RELAY_PIN, GPIO.HIGH)\n display_on = True\n # Send command to wake display (if HDMI)\n subprocess.run(['vcgencmd', 'display_power', '1'])\n print(\"Display ON\")\n\ndef monitor_off():\n global display_on\n if display_on:\n GPIO.output(RELAY_PIN, GPIO.LOW)\n display_on = False\n subprocess.run(['vcgencmd', 'display_power', '0'])\n print(\"Display OFF\")\n\nprint(\"Smart Mirror Motion Detection Started\")\n\ntry:\n while True:\n motion = GPIO.input(PIR_PIN)\n if motion:\n last_motion = time.time()\n monitor_on()\n \n if display_on and (time.time() - last_motion > TIMEOUT):\n monitor_off()\n \n time.sleep(0.5)\n\nexcept KeyboardInterrupt:\n monitor_off()\n GPIO.cleanup()\n<\/code><\/pre>\nAuto-start Configuration<\/h2>\n
python3 \/home\/pi\/mirror\/motion.py &\ncd \/home\/pi\/MagicMirror && npm start &\n<\/pre>\n
MagicMirror Configuration Example<\/h2>\n
\/\/ config.js\nlet config = {\n address: \"0.0.0.0\",\n port: 8080,\n modules: [\n {\n module: \"clock\",\n position: \"top_center\"\n },\n {\n module: \"weather\",\n position: \"top_right\",\n config: {\n location: \"YourCity\",\n apiKey: \"YourAPIKey\"\n }\n },\n {\n module: \"calendar\",\n position: \"bottom_left\",\n config: {\n calendars: [\n {\n url: \"https:\/\/calendar.google.com\/calendar\/ical\/...\"\n }\n ]\n }\n },\n {\n module: \"newsfeed\",\n position: \"bottom_right\",\n config: {\n feeds: [\n {\n title: \"News\",\n url: \"https:\/\/feeds.bbci.co.uk\/news\/rss.xml\"\n }\n ]\n }\n }\n ]\n};\n\nmodule.exports = config;\n<\/code><\/pre>\nInstallation Steps<\/h2>\n
\n
Project Extensions<\/h2>\n
\n
Troubleshooting<\/h2>\n
\n
Conclusion<\/h2>\n