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Smart Cold Storage Using ESP32 & BLE

Smart cold storage system using ESP32 with BLE & Wi-Fi for real-time temperature monitoring, automatic cooling control, and IoT alerts.

himanshu-dadaHimanshu Dada
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The project I am explaining here is basically a device meant for cold storage system build using ESP32 to manage BLE and Wifi communication in real time and automate the tasks and alerts accordingly. The device get the real time sensors data like temperature which is displayed on a small attach OLED screen and it manages the colling by controlling fan accordingly. On Later stages I remove the OLED and make it manage relays for refrigeneration. I also built an IoT dashboard as well that displays the real time data from multiple devices scattered across the globe. It definately makes easy for companies that sends lorries of fresh fruits and crops.
  • 1 × DS18B20 Temperature Sensors
  • 1 × SSD1306 OLED display OLED (Organic Graphic Display) display modules are compact and have high contrast pixels which make this display easily readable. They do not require backlight since the display creates its own light. Hence they consume less power. It is widely used in Smartphones, Digital display.
  • 1 × IRFZ44N MOSFET MOSFET MOSFT 55V 49A 17.5mOhm 42nC
  • 1 × Cooling Fan DC Fans Spot Cool with 120x120x32mm Fan, Terminal for 120VAC, 1 Guard, Adapter 6' Cord
  • 1 × ESP32 development board Wi-Fi & BT microcontroller

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