DIY ESP32 Blinker: Designing and Building a Temperature Alarm Device Using ESP32

Hardware Materials:

1 * ESP32 development board
1 * DHT11 temperature and humidity module
1 * MQ-2 smoke module
1 * MX1508 motor driver module
1 * DC motor
1 * OLED display module [white] [0.96 inches]
1 * Buzzer module
1 * MLX90614 infrared temperature measurement module
1 * MICRO data cable [0.5m]
1 * Battery [USB-A/microUSB]
Other potential components required (breadboard, resistors, capacitors, wires/DuPont wires, etc.)
Possible tools needed (multimeter, soldering iron and solder, pliers/scissors, wire strippers/lighter, regular tape/electrical tape/glue gun, etc.)

Functionality:

Step1:The ESP32 development board reads temperature and humidity using the DHT11 sensor module, displaying the environmental temperature and humidity on the OLED screen and mobile app. When the temperature exceeds a certain level, the fan will be turned on.

Step2: The ESP32 development board tracks smoke gas concentration using the MQ-2 smoke sensor module. When the concentration surpasses a predetermined level, the buzzer sounds an alarm. Both the current smoke concentration and the alarm status are displayed on the OLED screen and accessible via the mobile app.

Step3: The ESP32 development board measures both object and ambient temperatures using the MLX90614 infrared thermometer module. If the body temperature exceeds a specified threshold, warning messages will be displayed on the OLED screen and the mobile app

Step4: Users can set the smoke concentration threshold via the mobile app.

Step5: Users can configure the environmental temperature threshold through the mobile app.

Step6: Users can set the human body temperature threshold via the mobile app.

For any details not specifically covered, please consult the requirements and concept images/videos for guidance.