This project creates a simple but effective security system for your shed, garage, or workshop. When motion is detected, the system sends an email alert to your phone or computer. It can also trigger a siren or flash lights as a deterrent.<\/p>\n
Difficulty:<\/strong> Intermediate A PIR sensor monitors the shed interior. When motion is detected, the ESP32 sends an email via SMTP to your email address. An optional siren and strobe light can also be activated. The system includes a cooldown timer to prevent multiple emails for the same event.<\/p>\n For Gmail, you need an App Password (regular password won’t work):<\/p>\n \u8868<\/p>\n For sheds without power, add solar charging:<\/p>\n This shed security system provides peace of mind by alerting you immediately when someone enters. With email alerts, you can respond quickly even when away from home.<\/p>\n","protected":false},"excerpt":{"rendered":" Project Overview This project creates a simple but effective security system for your shed, garage, or workshop. When motion is detected, the system sends an email alert to your phone or computer. It can also trigger a siren or flash lights as a deterrent. Difficulty: Intermediate Estimated time: 2 hours Estimated cost: $25-35 How It […]<\/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-3929","post","type-post","status-publish","format-standard","hentry","category-projects"],"blocksy_meta":[],"yoast_head":"\r\n
\nEstimated time:<\/strong> 2 hours
\nEstimated cost:<\/strong> $25-35<\/p>\nHow It Works<\/h2>\n
Materials Needed<\/h2>\n
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Email Setup (Gmail)<\/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<\/th>\n VCC<\/th>\n 3.3V<\/th>\n PIR Sensor<\/th>\n GND<\/th>\n GND<\/th>\n PIR Sensor<\/th>\n OUT<\/th>\n GPIO 4<\/th>\n Relay (Siren)<\/th>\n IN<\/th>\n GPIO 5<\/th>\n Status LED<\/th>\n Anode<\/th>\n GPIO 2<\/th>\n<\/tbody>\n Arduino Code<\/h2>\n
\/\/ Shed Security with Email Alerts\n#include <WiFi.h>\n#include <ESP_Mail_Client.h>\n\n\/\/ Wi-Fi credentials\nconst char* ssid = \"YourWiFiSSID\";\nconst char* password = \"YourWiFiPassword\";\n\n\/\/ Email credentials\nconst char* smtp_server = \"smtp.gmail.com\";\nconst int smtp_port = 587;\nconst char* sender_email = \"your_email@gmail.com\";\nconst char* sender_password = \"your_app_password\";\nconst char* recipient_email = \"recipient@example.com\";\n\nconst int pirPin = 4;\nconst int sirenPin = 5;\nconst int ledPin = 2;\n\nunsigned long lastAlertTime = 0;\nconst unsigned long alertCooldown = 600000; \/\/ 10 minutes between emails\nbool alertActive = false;\n\nvoid setup() {\n Serial.begin(115200);\n \n pinMode(pirPin, INPUT);\n pinMode(sirenPin, OUTPUT);\n pinMode(ledPin, OUTPUT);\n \n digitalWrite(sirenPin, LOW);\n digitalWrite(ledPin, LOW);\n \n WiFi.begin(ssid, password);\n while (WiFi.status() != WL_CONNECTED) {\n delay(500);\n Serial.print(\".\");\n }\n Serial.println(\"WiFi connected\");\n \n Serial.println(\"Shed Security Ready\");\n delay(60000); \/\/ PIR warm-up\n}\n\nvoid sendEmailAlert() {\n if (WiFi.status() != WL_CONNECTED) return;\n \n ESP_Mail_Session session;\n session.server.host_name = smtp_server;\n session.server.port = smtp_port;\n session.login.email = sender_email;\n session.login.password = sender_password;\n session.login.user_domain = \"\";\n \n SMTP_Message message;\n message.sender.name = \"Shed Security\";\n message.sender.email = sender_email;\n message.subject = \"SECURITY ALERT: Motion Detected in Shed\";\n message.addRecipient(\"Recipient\", recipient_email);\n \n String textMsg = \"Motion was detected in your shed at \" + String(millis()) + \"ms.\\n\\n\";\n textMsg += \"Please check the property immediately.\\n\";\n textMsg += \"This alert was generated by your ESP32 security system.\";\n message.text.content = textMsg.c_str();\n message.text.charSet = \"us-ascii\";\n message.text.transfer_encoding = Content_Transfer_Encoding::enc_7bit;\n \n if (!MailClient.sendMail(&session, &message)) {\n Serial.println(\"Email send failed\");\n } else {\n Serial.println(\"Email alert sent\");\n }\n}\n\nvoid activateAlarm() {\n alertActive = true;\n digitalWrite(ledPin, HIGH);\n \n \/\/ Sound siren for 5 seconds\n digitalWrite(sirenPin, HIGH);\n delay(5000);\n digitalWrite(sirenPin, LOW);\n \n digitalWrite(ledPin, LOW);\n alertActive = false;\n}\n\nvoid loop() {\n bool motion = digitalRead(pirPin) == HIGH;\n \n if (motion && (millis() - lastAlertTime > alertCooldown)) {\n lastAlertTime = millis();\n Serial.println(\"Motion detected! Sending alert...\");\n \n \/\/ Send email\n sendEmailAlert();\n \n \/\/ Activate local alarm\n activateAlarm();\n \n delay(5000);\n }\n \n delay(100);\n}\n<\/code><\/pre>\nBattery-Powered Version with Deep Sleep<\/h2>\n
#include <esp_sleep.h>\n\nRTC_DATA_ATTR unsigned long lastAlertTime = 0;\n\nvoid setup() {\n Serial.begin(115200);\n pinMode(pirPin, INPUT);\n pinMode(ledPin, OUTPUT);\n \n esp_sleep_enable_ext0_wakeup((gpio_num_t)pirPin, 1);\n \n if (esp_sleep_get_wakeup_cause() == ESP_SLEEP_WAKEUP_EXT0) {\n if (millis() - lastAlertTime > alertCooldown) {\n lastAlertTime = millis();\n \n \/\/ Connect to WiFi and send email\n WiFi.begin(ssid, password);\n int attempts = 0;\n while (WiFi.status() != WL_CONNECTED && attempts < 20) {\n delay(500);\n attempts++;\n }\n if (WiFi.status() == WL_CONNECTED) {\n sendEmailAlert();\n WiFi.disconnect();\n }\n \n \/\/ Flash LED\n for (int i = 0; i < 10; i++) {\n digitalWrite(ledPin, HIGH);\n delay(200);\n digitalWrite(ledPin, LOW);\n delay(200);\n }\n }\n }\n \n esp_deep_sleep_start();\n}\n<\/code><\/pre>\nSolar Power for Remote Shed<\/h2>\n
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Installation Steps<\/h2>\n
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Project Extensions<\/h2>\n
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Troubleshooting<\/h2>\n
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Conclusion<\/h2>\n