amc2022:groups:start
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| amc2022:groups:start [2022/09/09 21:13] – [Results and Discussion] emilie001 | amc2022:groups:start [2022/09/10 23:57] (current) – [Video] emilie001 | ||
|---|---|---|---|
| Line 13: | Line 13: | ||
| * 10k potentiometer | * 10k potentiometer | ||
| * 220 ohm resistor | * 220 ohm resistor | ||
| - | * Bread boards | + | * Breadboards |
| * male-to-male jumper cable | * male-to-male jumper cable | ||
| ====Elegoo Uno==== | ====Elegoo Uno==== | ||
| - | The Elegoo Uno is a microcontroller board that can be programmed with Arduino IDE. It has several pins than be set as in or output for data with using different functions. By installing additional libraries into Arduino IDE the board is able to communicate with a variety of sensors | + | The Elegoo Uno is a microcontroller board that can be programmed with Arduino IDE. It has several pins than can be set as in or output for data by using different functions. By installing additional libraries into Arduino IDE the board is able to communicate with a variety of sensor |
| ===How to use the Elegoo Uno=== | ===How to use the Elegoo Uno=== | ||
| As mentioned above the Uno is programable with Arduino IDE. To program it you have to connect the board via USB. The written code can then be compiled and uploaded onto the microcontroller. | As mentioned above the Uno is programable with Arduino IDE. To program it you have to connect the board via USB. The written code can then be compiled and uploaded onto the microcontroller. | ||
| ====LCD Display==== | ====LCD Display==== | ||
| - | The LCD display can be used to print values obtained from the measurement of a sensor. It can be used instead of the serial monitor to make a system independent and mobile. The display needs a 5V power supply. Depending on how many of the pins are utilized it can either be used in 4-bit or 8-bit mode. Because of limited availability of digital output pins on the Eleggoo Uno 4-bit or 4-wire mode is usually preferred. | + | The LCD display can be used to print values obtained from the measurement of a sensor. It can be used instead of the serial monitor to make a system independent and mobile. The display needs a 5V power supply. Depending on how many of the pins are utilized it can either be used in 4-bit or 8-bit mode. Because of the limited availability of digital output pins on the Eleggoo Uno 4-bit or 4-wire mode is usually preferred. |
| ===How to use the LCD=== | ===How to use the LCD=== | ||
| Line 70: | Line 70: | ||
| ===How to use DHT11=== | ===How to use DHT11=== | ||
| - | In order to use the sensor module it has to be appropriately connected to the microcontroller board. The module has three pins, VCC, Ground and a data pin (see <imgref dht11.jpeg> | + | In order to use the sensor module, it has to be appropriately connected to the microcontroller board. The module has three pins, VCC, Ground and a data pin (see <imgref dht11.jpeg> |
| <code c++> | <code c++> | ||
| Line 96: | Line 96: | ||
| float temp = dht.readTemperature(); | float temp = dht.readTemperature(); | ||
| float hum = dht.readHumidity(); | float hum = dht.readHumidity(); | ||
| - | float hi = dht.computeHeatIndex(temp, | + | float hi = dht.computeHeatIndex(temp, |
| lcd.setCursor(0, | lcd.setCursor(0, | ||
| Line 120: | Line 120: | ||
| <WRAP group> | <WRAP group> | ||
| <WRAP half column> | <WRAP half column> | ||
| - | The MQ 135 is a sensor that measures the concentration of CO2 and other gases in air. It needs a 5V power supply to operate and has a working current of 150mA. The module has one digital and one analog pin for data output. The material used to sense the gas concentration is SnO< | + | The MQ 135 is a sensor that measures the concentration of CO2 and other gases in air. It needs a 5V power supply to operate and has a working current of 150mA. The module has one digital and one analog pin for data output. The material used to sense the gas concentration is SnO< |
| </ | </ | ||
| Line 159: | Line 159: | ||
| The project went through different development phases. The circuit as well as the code have been changed over time. Every sensor was tested separately before combining the system together. At first, the LCD display was set up as the basis of the project as described [[https:// | The project went through different development phases. The circuit as well as the code have been changed over time. Every sensor was tested separately before combining the system together. At first, the LCD display was set up as the basis of the project as described [[https:// | ||
| - | |||
| - | |||
| Line 275: | Line 273: | ||
| =====Conclusion and Outlook===== | =====Conclusion and Outlook===== | ||
| All in all, the system is functional. The communication between the sensors, the microcontroller and the LCD is working. It is unsure how accurate the obtained measurements are but as it is the system could be used as tool to give meaningful information and improve indoor air quality.\\ | All in all, the system is functional. The communication between the sensors, the microcontroller and the LCD is working. It is unsure how accurate the obtained measurements are but as it is the system could be used as tool to give meaningful information and improve indoor air quality.\\ | ||
| - | Building and expanding the system stepwise helped to understand the different components and the code better. If this same project had to be recreated a bigger LCD and a more controllable environment to calibrate and set-up the gas sensor would be recommended. The bigger LCD would increase the accessibility and even more variables could be displayed. Additionally, | + | Building and expanding the system stepwise helped to understand the different components and the code better. If this same project had to be recreated a bigger LCD and a more controllable environment to calibrate and set-up the gas sensor would be recommended. The bigger LCD would increase the accessibility and even more variables could be displayed. Additionally, |
| + | |||
| + | ====Video==== | ||
| + | {{youtube> | ||
| + | |||
| =====References===== | =====References===== | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | * https:// | ||
| + | |||
amc2022/groups/start.1662750797.txt.gz · Last modified: 2022/09/09 21:13 by emilie001