Arduino Music
What is an Arudino buzzer? An arduino buzzer is also called a piezo buzzer.
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Arduino Projects
iR Car Control Arduino
The car is controlled by a remote control with four buttons: front, back, left and right,
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Propeller Led Clock Arduino
POV clock, consists of: Arduino nano, 8 LEDs and A3144 hall sensor. Arduino, based on information
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MultiMeter Arduino nano and OLED i2c 0.96″
Hi, every electronics needs a multimeter, you can buy it or make it yourself at home. Today I will show
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Tachometer / RPM Measure
List Elements: Arduino Nano Display old i2c 0.96″ Hall Effect Sensor A3144 BreadBoard Wires
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#include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> Adafruit_SSD1306 display(4); float value=0; float rev=0; int rpm,count=0; int oldtime=0; int time; void isr() //interrupt service routine { rev++; count++; } void setup() { display.begin(SSD1306_SWITCHCAPVCC,0x3C); display.clearDisplay(); attachInterrupt(0,isr,RISING); //attaching the interrupt } void loop() { delay(1000); detachInterrupt(0); //detaches the interrupt time=millis()-oldtime; //finds the time rpm=(rev/time)*60000; //calculates rpm oldtime=millis(); //saves the current time rev=0; attachInterrupt(0,isr,RISING); display.clearDisplay(); display.setTextSize(2); display.setCursor(0,0); display.println("COUNT"); display.setCursor(70,0); display.println(count); display.setTextSize(3); display.setTextColor(WHITE); display.setCursor(34,20); display.println("RPM:"); display.setTextSize(2); display.setCursor(40,48); display.println(rpm); display.display(); } |
Covid-19 Tracker
You don’t have to watch TV to know what the situation is in your country. In
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NodeMCU and 1.8″ SPI ST7735 display
I am using the 1.8″ color ST7735 TFT display a lot. The reason for that is that this display is
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Start with NodeMCU
NODEmcu is an inexpensive WiFi module that enables makers and entrepreneurs to develop
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Weather Station NODEmcu i2c HD44780
Do you want to know the current weather? This article will show
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Arduino Dice
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/* * ForbiddenBit.com * * Dice Arduino */ #define D3 3 #define D4 4 #define D5 5 #define D6 6 #define D7 7 #define D8 8 #define BUTTON 11 int ButtonValue; long DIGIT; void setup () { Serial.begin(9600); pinMode (3, OUTPUT); pinMode (D4, OUTPUT); pinMode (D5, OUTPUT); pinMode (D6, OUTPUT); pinMode (D7, OUTPUT); pinMode (D8, OUTPUT); pinMode (BUTTON, INPUT_PULLUP); randomSeed(analogRead(0)); } void loop() { ButtonValue = digitalRead(BUTTON); if (ButtonValue == LOW) { DIGIT = random(1, 6); Serial.print(DIGIT); //shuffle(); if(DIGIT == 1){ digitalWrite(D3, HIGH); } else if(DIGIT == 2){ digitalWrite (D5, HIGH); digitalWrite (D8, HIGH); } else if(DIGIT == 3){ digitalWrite (D3, HIGH); digitalWrite (D4, HIGH); digitalWrite (D5, HIGH); } else if(DIGIT == 4){ digitalWrite (D3, HIGH); digitalWrite (D5, HIGH); digitalWrite (D6, HIGH); digitalWrite (D8, HIGH); } else if(DIGIT == 5){ digitalWrite (D3, HIGH); digitalWrite (D5, HIGH); digitalWrite (D6, HIGH); digitalWrite (D7, HIGH); digitalWrite (D8, HIGH); } else if(DIGIT == 6){ digitalWrite (D3, HIGH); digitalWrite (D4, HIGH); digitalWrite (D5, HIGH); digitalWrite (D6, HIGH); digitalWrite (D7, HIGH); digitalWrite (D8, HIGH); } delay(3000); } else { digitalWrite (D3, LOW); digitalWrite (D4, LOW); digitalWrite (D5, LOW); digitalWrite (D6, LOW); digitalWrite (D7, LOW); digitalWrite (D8, LOW); } } void off() { digitalWrite (D3, LOW); digitalWrite (D4, LOW); digitalWrite (D5, LOW); digitalWrite (D6, LOW); digitalWrite (D7, LOW); digitalWrite (D8, LOW); } void shuffle() { } |