Arduino Uno Example Projects for Students - Revision history

EdmondLascaris: /* Arduino Uno code to send rain forecast code = */

2023-05-29T19:37:23Z

Arduino Uno code to send rain forecast code =

← Older revision		Revision as of 19:37, 29 May 2023
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	== Arduino Uno code to send rain forecast ~~code =~~==		== Arduino Uno code to send rain forecast ==

	<syntaxhighlight lang="c++">		<syntaxhighlight lang="c++">

EdmondLascaris: /* Send the Arduino Uno rain data using the Serial Monitor */

2023-05-29T19:37:03Z

Send the Arduino Uno rain data using the Serial Monitor

← Older revision		Revision as of 19:37, 29 May 2023
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	[[File:Screenshot 2023-05-30 at 5.34.26 am.png \| 900px]]		[[File:Screenshot 2023-05-30 at 5.34.26 am.png \| 900px]]


			== Arduino Uno code to send rain forecast code ===

	<syntaxhighlight lang="c++">		<syntaxhighlight lang="c++">

EdmondLascaris: /* Send the Arduino Uno rain data using the Serial Monitor */

2023-05-29T19:36:18Z

Send the Arduino Uno rain data using the Serial Monitor

← Older revision		Revision as of 19:36, 29 May 2023
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	* The '''Serial Monitor''' can display data from the Arduino Uno and also send data to the Arduino Uno.		* The '''Serial Monitor''' can display data from the Arduino Uno and also send data to the Arduino Uno.
	* Data can be sent using the '''input bar''' at the top of the Serial Monitor.		* Data can be sent using the '''input bar''' at the top of the Serial Monitor.
			* Enter a value from 0 to 60 and then press '''Enter''' or click on the '''Send''' button to send the value to the Arduino Uno.
	* In this example we will send predicted rainfall data to the Arduino Uno.		* In this example we will send predicted rainfall data to the Arduino Uno.

			[[File:Screenshot 2023-05-30 at 5.34.26 am.png \| 900px]]

	<syntaxhighlight lang="c++">		<syntaxhighlight lang="c++">

EdmondLascaris: /* Arduino Uno code */

2023-05-29T19:31:40Z

Arduino Uno code

← Older revision		Revision as of 19:31, 29 May 2023
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	* If tank is too full a peristaltic pump controlled using Pin 12 will empty the tank		* If tank is too full a peristaltic pump controlled using Pin 12 will empty the tank
	* Tank water level is measured using a distance sensor		* Tank water level is measured using a distance sensor
	* Hand gestures will ~~simulated~~ tank levels		* Hand gestures will simulate tank levels
	*/		*/

EdmondLascaris: /* Adding Relay Control for Water pump */

2023-05-29T19:31:23Z

Adding Relay Control for Water pump

← Older revision		Revision as of 19:31, 29 May 2023
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	* The relay will be controlled using Arduino Uno '''Pin 12'''		* The relay will be controlled using Arduino Uno '''Pin 12'''

			== Fritzing - Circuit Diagram showing Distance sensor and Relay ==

			[[File:Screenshot 2023-05-30 at 5.30.22 am.png \| 900px]]

			== Arduino Uno code ==

	<syntaxhighlight lang="c++">		<syntaxhighlight lang="c++">

EdmondLascaris: /* STEM Lab experiment and Control Logic */

2023-05-29T19:20:21Z

STEM Lab experiment and Control Logic

← Older revision		Revision as of 19:20, 29 May 2023
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	* In this experiment we will enter our own Bureau of Meteorology rain data to control the operation of the smart tank.		* In this experiment we will enter our own Bureau of Meteorology rain data to control the operation of the smart tank.
	* Rain data will represent rain forecasts for the following day (24 hour forecast).		* Rain data will represent rain forecasts for the following day (24 hour forecast).
	* Rain water tank levels will be measured using an ultrasonic distance sensor.		* Rain water tank water levels will be constantly measured using ultrasonic distance sensor.
	* ~~The upper and lower tank levels will be assigned to~~ the ~~following variables:~~		* In this example the operation of the smart tank will be kept simple.
	** '''float upper_tank_level''' - float means that the ~~number is a Real or Decimal number (e.g. 4.5, 0.25)~~		** If rain event is '''0mm''' - Pump will turn off.
	** '''float lower_tank_level'''		** If rain event is '''1-20mm''' - Pump will turn on.
	* Rainwater tank ~~levels~~ will be ~~displayed as '''Full, Half, Empty'''~~		** If rain event is '''20-60mm''' - Pump will turn on.
	** If rain event is '''0mm''' - Pump will ~~not operate~~
	** If rain event is '''1-20mm''' - Pump will ~~operate until tank is '''Half or less'''~~
	** If rain event is '''20-~~100mm~~''' - Pump will ~~operate until tank is '''Empty'''~~
	* Rain tank levels will be signalled using hand gestures (simulation of water levels in rainwater tank)		* Rain tank levels will be signalled using hand gestures (simulation of water levels in rainwater tank)

EdmondLascaris: /* Adding Relay Control for Water pump */

2023-05-29T19:16:50Z

Adding Relay Control for Water pump

← Older revision		Revision as of 19:16, 29 May 2023
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	String rain_string;		String rain_string;
	int rain_integer = 0;		int rain_integer = 0;
	~~float upper_tank_level = 18.0;~~
	~~float lower_tank_level = 4.0;~~

	// the setup function runs once when you press reset or power the board		// the setup function runs once when you press reset or power the board

EdmondLascaris: /* Adding Relay Control for Water pump */

2023-05-29T19:16:26Z

Adding Relay Control for Water pump

← Older revision		Revision as of 19:16, 29 May 2023
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	* The pump will be powered using a 5V power supply.		* The pump will be powered using a 5V power supply.
	* The relay will be controlled using Arduino Uno '''Pin 12'''		* The relay will be controlled using Arduino Uno '''Pin 12'''


			<syntaxhighlight lang="c++">

			/* Sending simulated rain forecast data to the Arduino Uno
			* If tank is too full a peristaltic pump controlled using Pin 12 will empty the tank
			* Tank water level is measured using a distance sensor
			* Hand gestures will simulated tank levels
			*/

			#define trigPin 10
			#define pump 12
			#define echoPin 13

			String rain_string;
			int rain_integer = 0;
			float upper_tank_level = 18.0;
			float lower_tank_level = 4.0;

			// the setup function runs once when you press reset or power the board
			void setup() {
			Serial.begin(9600);
			pinMode(trigPin, OUTPUT);
			pinMode(echoPin, INPUT);
			pinMode(pump, OUTPUT);
			Serial.println("Enter the amount of predicted rain from 0 to 60mm");
			}

			// the loop function runs over and over again forever
			void loop() {
			// * Measure water level using distance sensor *
			float duration, distance;
			digitalWrite(trigPin, LOW);
			delayMicroseconds(2);

			digitalWrite(trigPin, HIGH);
			delayMicroseconds(10);
			digitalWrite(trigPin, LOW);

			duration = pulseIn(echoPin, HIGH);
			distance = (duration / 2) * 0.0344;

			if (distance >= 400 \|\| distance <= 2){
			Serial.print("Distance = ");
			Serial.println("Out of range");
			}
			else {
			Serial.print("Distance = ");
			Serial.print(distance);
			Serial.println(" cm");
			delay(500);
			}

			delay(1000);

			// * Read rain forecast data using input from the Serial Monitor *
			if(Serial.available()){
			rain_string = Serial.readStringUntil('\n');
			rain_integer = rain_string.toInt(); // convert String to integer

			if(rain_integer == 0){
			Serial.println("No rain is forecast.");
			Serial.println("Turning pump OFF");
			digitalWrite(pump, LOW);

			}
			else if(rain_integer >=1 && rain_integer <= 20){
			Serial.print("Modest rain (mm) predicted: ");
			Serial.println(rain_integer);
			Serial.println("Turning pump ON");
			digitalWrite(pump, HIGH);
			}
			else if(rain_integer >20 && rain_integer <=60){
			Serial.print("Large rain (mm) event predicted: ");
			Serial.println(rain_integer);
			Serial.println("Turning pump ON");
			digitalWrite(pump, HIGH);
			}
			}
			}

			</syntaxhighlight>

			== Example output of Smart Tank code ==

			[[File:Screenshot 2023-05-30 at 5.15.25 am.png \| 900px]]

EdmondLascaris: /* STEM Lab experiment and Control Logic */

2023-05-29T18:58:45Z

STEM Lab experiment and Control Logic

← Older revision		Revision as of 18:58, 29 May 2023
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	* Rain water tank levels will be measured using an ultrasonic distance sensor.		* Rain water tank levels will be measured using an ultrasonic distance sensor.
	* The upper and lower tank levels will be assigned to the following variables:		* The upper and lower tank levels will be assigned to the following variables:
	** upper_tank_level		** '''float upper_tank_level''' - float means that the number is a Real or Decimal number (e.g. 4.5, 0.25)
	** lower_tank_level		** '''float lower_tank_level'''
	* Rainwater tank levels will be displayed as '''Full, Half, Empty'''		* Rainwater tank levels will be displayed as '''Full, Half, Empty'''
	** If rain event is '''0mm''' - Pump will not operate		** If rain event is '''0mm''' - Pump will not operate

EdmondLascaris: /* Smart Tank - Water Level sensor and Water Pump */

2023-05-29T18:55:15Z

Smart Tank - Water Level sensor and Water Pump

← Older revision		Revision as of 18:55, 29 May 2023
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	[[File:Screenshot 2023-05-30 at 4.42.10 am.png \| 900px]]		[[File:Screenshot 2023-05-30 at 4.42.10 am.png \| 900px]]

			== Adding Relay Control for Water pump ==
			* A relay will control a peristaltic water pump.
			* The pump will be powered using a 5V power supply.
			* The relay will be controlled using Arduino Uno '''Pin 12'''