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iothings:proiecte:2022sric:airqualitysystem [2023/06/01 18:55] ioan_marian.dan [Hardware Description] |
iothings:proiecte:2022sric:airqualitysystem [2023/06/02 03:19] (current) ioan_marian.dan [Hardware Description] |
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| - | ====== Air Quality Monitoring System ====== | + | ====== Air Quality Monitoring System using BMP280 Sensor ====== |
| Ioan-Marian Dan-Hariton - SRIC | Ioan-Marian Dan-Hariton - SRIC | ||
| + | Demo: [[https://youtu.be/MTQ_KuXFTSU]] | ||
| ==== Project Description ==== | ==== Project Description ==== | ||
| Line 18: | Line 19: | ||
| * **OLED 0.96” Screen**: an OLED screen which has a reduced energy consumption, only 0.08W. The interface type is IIC; | * **OLED 0.96” Screen**: an OLED screen which has a reduced energy consumption, only 0.08W. The interface type is IIC; | ||
| * **Buzzer module**: just a regular buzzer which operates on 3.3V or 5V and which has an I/O interface. | * **Buzzer module**: just a regular buzzer which operates on 3.3V or 5V and which has an I/O interface. | ||
| - | ESP32 specifications: | + | WEMOS LOLIN32 ESP32 specifications: |
| * Single or Dual-Core 32-bit LX6 Microprocessor with clock frequency up to 240MHz. | * Single or Dual-Core 32-bit LX6 Microprocessor with clock frequency up to 240MHz. | ||
| * 520 KB of SRAM, 448 KB of ROM and 16 KB of RTC SRAM. | * 520 KB of SRAM, 448 KB of ROM and 16 KB of RTC SRAM. | ||
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| * I/O pin of the buzzer to GPIO 14 pin of ESP32 | * I/O pin of the buzzer to GPIO 14 pin of ESP32 | ||
| + | At first, the board was a little bit tricky because when I wanted to upload the code on it, there was an error **"Wrong boot mode detected"**. I searched for this error on google and I found a documentation which says: | ||
| + | |||
| + | //"Depending on the kind of hardware you have, it may also be possible to **manually put your ESP32 board into Firmware Download mode** (reset). | ||
| + | |||
| + | For development boards produced by Espressif, this information can be found in the respective getting started guides or user guides. | ||
| + | For example, to manually reset a development board, hold down the Boot button (**GPIO0**) and press the EN button (EN (CHIP_PU)). | ||
| + | For other types of hardware, try pulling **GPIO0** down."// | ||
| + | |||
| + | As the board I used, WEMOS LOLIN32, has just one **Reset** button and not 2 buttons (Boot and EN), I had to pull the **GPIO0** pin down (connect it to **GND** on the board) and then, after I pressed the **Upload** button in the Arduino IDE, I had to hold the **Reset** button until it appeared **Connecting...** in Arduino's console. After that, when I wanted to test the code uploaded on the board, I had to disconnect the **GPIO0** pin from **GND**. This had to be done every time I uploaded a new version of code. | ||
| Line 165: | Line 175: | ||
| client.println(); | client.println(); | ||
| </code> | </code> | ||
| + | |||
| + | I had some difficulties synchronising the data that is showed on the web page with the one showed on the display, so values which are present on the display may differ from the values on the webpage. | ||
| + | |||
| + | The idea is that, because of the connection to the internet, the data is sent later to the web page, compared to the display where it is sent almost instantly. | ||
| For the development of this project, the following libraries have been used: | For the development of this project, the following libraries have been used: | ||
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| In conclusion, the scope of this project was to create an air quality monitoring system, by reading environment parameters such as temperature, pressure, altitude and send them to a web page and on a display. Also, the buzzer will make a sound when the temperature is above 29°C. | In conclusion, the scope of this project was to create an air quality monitoring system, by reading environment parameters such as temperature, pressure, altitude and send them to a web page and on a display. Also, the buzzer will make a sound when the temperature is above 29°C. | ||
| + | {{:iothings:proiecte:2022sric:display_values.jpeg?300|}} | ||
| + | {{:iothings:proiecte:2022sric:web_page_values.png?400|}} | ||
| ---- | ---- | ||
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| === Bibliography === | === Bibliography === | ||
| - | [[https://cleste.ro/placa-dezvoltare-nodemcu-wifi-bluetooth-esp32.html]] | + | * [[https://cleste.ro/placa-dezvoltare-nodemcu-wifi-bluetooth-esp32.html]] |
| - | [[https://cleste.ro/modul-senzor-de-presiune-atmosferica-bmp280.html]] | + | * [[https://cleste.ro/modul-senzor-de-presiune-atmosferica-bmp280.html]] |
| - | [[https://cleste.ro/ecra-oled-0-96-inch.html]] | + | * [[https://cleste.ro/ecra-oled-0-96-inch.html]] |
| - | [[https://cleste.ro/modul-buzzer.html]] | + | * [[https://cleste.ro/modul-buzzer.html]] |
| + | * [[https://randomnerdtutorials.com/esp32-pinout-reference-gpios/]] | ||
| + | * [[https://randomnerdtutorials.com/esp32-adc-analog-read-arduino-ide/]] | ||
| + | * [[https://randomnerdtutorials.com/esp32-web-server-arduino-ide/]] | ||
| + | * [[https://randomnerdtutorials.com/solved-failed-to-connect-to-esp32-timed-out-waiting-for-packet-header/]] | ||
| + | * [[https://docs.espressif.com/projects/esptool/en/latest/esp32/advanced-topics/boot-mode-selection.html?highlight=manual%20boot]] | ||
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| + | ---- | ||
