This project creates an automatic dust collection system for your workshop. When you approach a power tool (table saw, miter saw, router table), a PIR sensor detects your presence and turns on the dust collector. After you leave, the system runs for a short delay to clear remaining dust, then shuts off automatically.<\/p>\n
Difficulty:<\/strong> Intermediate A PIR sensor mounted near each power tool detects when you approach. When motion is detected, the ESP32 activates a relay that turns on the dust collector. A timer keeps the collector running for 30-60 seconds after the last motion to clear residual dust. Multiple sensors can control a single dust collector from multiple tools.<\/p>\n OUT<\/th>\n GPIO 4<\/th>\n OUT<\/th>\n GPIO 5<\/th>\n OUT<\/th>\n GPIO 6<\/th>\n IN<\/th>\n GPIO 7<\/th>\n Anode<\/th>\n GPIO 2<\/th>\n<\/tbody>\n \u8868<\/p>\n This automatic dust collection system makes woodworking cleaner and more convenient, saving energy and reducing noise.<\/p>\n","protected":false},"excerpt":{"rendered":" Project Overview This project creates an automatic dust collection system for your workshop. When you approach a power tool (table saw, miter saw, router table), a PIR sensor detects your presence and turns on the dust collector. After you leave, the system runs for a short delay to clear remaining dust, then shuts off automatically. […]<\/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-3924","post","type-post","status-publish","format-standard","hentry","category-projects"],"blocksy_meta":[],"yoast_head":"\r\n
\nEstimated time:<\/strong> 2-3 hours
\nEstimated cost:<\/strong> $25-35<\/p>\nHow It Works<\/h2>\n
Materials Needed<\/h2>\n
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Circuit Diagram<\/h2>\n
Connection Table<\/h3>\n
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Component<\/th>\n Pin<\/th>\n ESP32 Pin<\/th>\n<\/thead>\n \nPIR Sensor 1 (Table Saw)<\/th>\n PIR Sensor 2 (Miter Saw)<\/th>\n PIR Sensor 3 (Router)<\/th>\n Relay Module<\/th>\n Status LED<\/th>\n Arduino Code<\/h2>\n
\/\/ Automatic Dust Collection System\nconst int numSensors = 3;\nconst int sensorPins[] = {4, 5, 6};\nconst int relayPin = 7;\nconst int ledPin = 2;\n\nunsigned long lastMotionTime = 0;\nconst unsigned long runAfterDelay = 60000;\nbool dustCollectorOn = false;\n\nvoid setup() {\n Serial.begin(115200);\n \n for (int i = 0; i < numSensors; i++) pinMode(sensorPins[i], INPUT);\n pinMode(relayPin, OUTPUT);\n pinMode(ledPin, OUTPUT);\n \n digitalWrite(relayPin, LOW);\n digitalWrite(ledPin, LOW);\n \n delay(60000);\n}\n\nvoid turnOnDustCollector() {\n if (!dustCollectorOn) {\n digitalWrite(relayPin, HIGH);\n digitalWrite(ledPin, HIGH);\n dustCollectorOn = true;\n }\n}\n\nvoid turnOffDustCollector() {\n if (dustCollectorOn) {\n digitalWrite(relayPin, LOW);\n digitalWrite(ledPin, LOW);\n dustCollectorOn = false;\n }\n}\n\nvoid loop() {\n bool anyMotion = false;\n \n for (int i = 0; i < numSensors; i++) {\n if (digitalRead(sensorPins[i]) == HIGH) anyMotion = true;\n }\n \n if (anyMotion) {\n lastMotionTime = millis();\n turnOnDustCollector();\n }\n \n if (dustCollectorOn && (millis() - lastMotionTime > runAfterDelay)) {\n turnOffDustCollector();\n }\n \n delay(100);\n}\n<\/code><\/pre>\nInstallation Steps<\/h2>\n
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Project Extensions<\/h2>\n
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Conclusion<\/h2>\n