Arduino Microcontroller Workshop at UMBC Institute of Electrical and Electronics Engineers Presentation
"Join the technical skills series presentation at UMBC Institute of Electrical and Electronics Engineers on Arduino programming with Piezo. Topics covered include Arduino coding basics, analog & digital signals, piezoelectric sensors, and pulse width modulation. Learn important functions and practical applications. Check out the program details and essential concepts discussed in this engaging workshop."
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Presentation Transcript
Arduino Microcontroller Workshop UMBC Institute of Electrical and Electronics Engineers Sekar Kulandaivel sekark1@umbc.edu Week 2: Arduino Programming with Piezo Technical Skills Series Presentation Arduino UMBC IEEE April 8th 9th, 2014
Topics to Cover Arduino Coding Basics & Functions Analog & Digital Signals Piezoelectric Sensors Pulse Width Modulation
4th band is Tolerance. L R Color Black Brown Red Orange Yellow Green Blue Violet Gray White 1st Digit 0 1 2 3 4 5 6 7 8 9 2nd Digit 0 1 2 3 4 5 6 7 8 9 Multiplier 100 101 102 103 104 105 106 107 108 109
330 x 101 = 3 3 10k x 103 = 0 1 2k x 102 = 0 2 1M x 105 = 0 1
Important Functions int val, time; void setup() { } void loop() { } Serial.begin(9600); Serial.print( Hello ); Serial.println( Hi ); delay(1000); map(var, testLow, testHigh, mapLow, mapHigh); tone(8, pitch, time); pinMode(8, INPUT); pinMode(9, OUTPUT); val = digitalRead(8); digitalWrite(9, out); val = analogRead(A0); analogWrite(9, out); time = millis();
const int sensorPin = 8; int sensorValue; void setup() { Serial.begin(9600); pinMode(sensorPin, INPUT); } void loop() { sensorValue = digitalRead(sensorPin); Serial.println(sensorValue); delay(25); }
const int sensorPin = 8; const int outputPin = 9; int sensorValue; void setup() { Serial.begin(9600); pinMode(sensorPin, INPUT); pinMode(outputPin, OUTPUT); } void loop() { sensorValue = digitalRead(sensorPin); Serial.println(sensorValue); if (sensorValue == HIGH) { digitalWrite(outputPin, HIGH); delay(500); digitalWrite(outputPin, LOW); } delay(25); }
const int sensorPin = A0; const int outputPin = 9; int sensorValue; void setup() { Serial.begin(9600); pinMode(sensorPin, INPUT); pinMode(outputPin, OUTPUT); } void loop() { sensorValue = analogRead(sensorPin); Serial.println(sensorValue); analogWrite(outputPin, sensorValue); delay(25); }
const int sensorPin = A1; const int outputPin = 9; int sensorValue; int low = 300; int high = 450; int range[2] = {0, 255}; void setup() { Serial.begin(9600); pinMode(sensorPin, INPUT); pinMode(outputPin, OUTPUT); } void loop() { sensorValue = analogRead(sensorPin); Serial.println(sensorValue); sensorValue = map(sensorValue, low, high, range[0], range[1]); analogWrite(outputPin, sensorValue); delay(25); }
const int sensorPin = A1; const int outputPin = 11; int wait = 25; int sensorValue, pitch; int range[2] = {1023, 0}; int minTone = 500; int maxTone = 1500; void setup() { Serial.begin(9600); pinMode(sensorPin, INPUT); pinMode(outputPin, OUTPUT); while (millis() < 3000) { sensorValue = analogRead(sensorPin); if (sensorValue < range[0]) { range[0] = sensorValue; } if (sensorValue > range[1]) { range[1] = sensorValue; } } }
void loop() { sensorValue = analogRead(sensorPin); Serial.println(sensorValue); pitch = map(sensorValue, range[0], range[1], minTone, maxTone); tone(outputPin, pitch, wait); delay(wait); }
Challenge Requirements: 1. Sense a knock using the piezoelectric sensor. 2. Flash LED once for a soft knock. 3. Flash LED twice for a loud knock. Analog Notes: Remove photoresistor and potentiometer circuits from your board. Knock on the breadboard or tap the piezo for the best results. Utilize previous code as a guide for your project.
