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Have you ever heard of Arduino®? It is a microcontroller that helps you do many things such as robotics.
Recently, I have been tinkering with the Arduino Uno R3 and the Arduino Sensor Kit from Seeed Studio. Since it's almost 2024 (Yay!) and the blog hasn't seen any new posts recently, I thought this was the perfect way to get back to it.
What will you need?
- Arduino Uno R3 Board
- Arduino Sensor Kit Base (from Seeed Studio)
A note about the Sensor Kit's contents:
The Sensor Kit from Seeed Studio includes the following:
- LED
- Buzzer/Piezo (used in this project)
- OLED (Organic Light-Emitting Diode) Display, 128×64 dots (used in this project)
- Button
- Rotary Potentiometer
- Light Sensor
- Sound Sensor
- Temperature and Humidity Sensor
- Air Pressure Sensor
- Acceleration/Movement Sensor
- Some wires to connect the sensors to the base (everything is already connected inside, but to be able to hear the audio, you need to connect the buzzer to D8.)
That's all you need!
What to Wire
Code
The Sketch (click on the drop-down to view)
#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
// things include for audio
#include "pitches.h"
// OLED specs
#define OLED_WIDTH 128
#define OLED_HEIGHT 64
#define OLED_ADDR 0x3C
Adafruit_SSD1306 display(OLED_WIDTH, OLED_HEIGHT);
// only for audio
int melody[] = {
NOTE_C4, NOTE_CS4, NOTE_D4, NOTE_DS4, NOTE_E4, NOTE_F4, NOTE_FS4, NOTE_G4
};
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
4, 4, 4, 4, 4, 4, 4, 4
};
int thisNote = 0;
void playMelody() {
for(int thisNote = 0; thisNote < 8; thisNote++) {
int noteDuration = 1000 / noteDurations[thisNote];
tone(8, melody[thisNote], noteDuration);
int pauseBetweenNotes = noteDuration * 1.30;
delay(pauseBetweenNotes);
noTone(8);
}
}
// play melody 8 times function {if you want to change # of times melody plays}
void playMelody8Times() {
for (int nTimes = 0; nTimes < 8; nTimes++) {
playMelody();
delay(5000);
}
}
void setup() {
display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
}
void loop() {
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 10);
// Display static text
display.println("Happy");
display.println(" New");
display.println(" Year!");
display.display();
playMelody();
display.clearDisplay();
display.setTextSize(4);
display.setTextColor(WHITE);
display.setCursor(0, 10);
// Display static text
display.println(" 2024");
display.display();
playMelody();
display.clearDisplay();
display.setTextSize(3);
display.setTextColor(WHITE);
display.setCursor(0, 10);
// Display static text
display.println(". .");
display.println(" v");
display.display();
playMelody();
}
The output panel should tell you that there is no pitches.h file. To solve this, create a new file in the same folder (I call mine arduino4 since it's my fourth Arduino program on this machine) and paste in the following code:
pitches.h (Click on drop-down to view)
/*************************************************
Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978
Once you have gotten the error to stop appearing (it may take multiple tries), make sure the kit is wired correctly and enjoy!
Errors That May Occur With Tips To Fix Them
- error: pitches.h: No such file or directory
- This error can happen when you have said "#include" the file. In some cases, this means you do not have the library files in your computer. However, in our case, this means that the file is not in the same folder and not open in the same window. Try to put it in the same folder.
- error: Attempt [] out of 10: programmer is not responding
- I got this error multiple times. Although I don't know what the cause of it is, restarting the computer seemed to fix the issue.
Acknowledgements
- elithecomputerguy.com/2019/07/draw-shapes-on-oled-screen-with-arduino
- randomnerdtutorials.com/guide-for-oled-display-with-arduino (go to the heading Write Text -- OLED Display >> "Hello, world!" OLED Display.)
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