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In questo video scoprirai come usare il display a 7 segmenti con Arduino.
Imparerai come visualizzare e modificare le cifre e come trasformare il display in un dado digitale.
#define DATA_PIN 4#define LATCH_PIN 3#define CLOCK_PIN 2 byte numbers[] = { B11111100, // 0 B01100000, // 1 B11011010, // 2 B11110010, // 3 B01100110, // 4 B10110110, // 5 B10111110, // 6 B11100000, // 7 B11111110, // 8 B11110110 // 9}; int n = 0; void setup() { pinMode(DATA_PIN, OUTPUT); pinMode(LATCH_PIN, OUTPUT); pinMode(CLOCK_PIN, OUTPUT);} void loop(){ n = (n+1) % 10; writeRegister(numbers[n]); delay(500);} void writeRegister(byte value){ digitalWrite(LATCH_PIN, LOW); shiftOut(DATA_PIN, CLOCK_PIN, MSBFIRST, value); digitalWrite(LATCH_PIN, HIGH);}
#define DATA_PIN 4#define LATCH_PIN 3#define CLOCK_PIN 2 #define BUTTON_PIN 6 byte numbers[] = { B11111100, // 0 B01100000, // 1 B11011010, // 2 B11110010, // 3 B01100110, // 4 B10110110, // 5 B10111110, // 6 B11100000, // 7 B11111110, // 8 B11110110 // 9}; int n = 0; void setup() { pinMode(DATA_PIN, OUTPUT); pinMode(LATCH_PIN, OUTPUT); pinMode(CLOCK_PIN, OUTPUT); pinMode(BUTTON_PIN, INPUT); randomSeed(analogRead(A1)); writeRegister(0);} void loop(){ if (digitalRead(BUTTON_PIN) == HIGH) { do { displayNextNumber(); } while(digitalRead(BUTTON_PIN)); int r = random(20, 26); for (int i = 0; i < r; i++) { displayNextNumber(); } writeRegister(numbers[n]); } delay(10);} void displayNextNumber() { n = n % 6 + 1; writeRegister(numbers[n] | B00000001); delay(30);} void writeRegister(byte value){ digitalWrite(LATCH_PIN, LOW); shiftOut(DATA_PIN, CLOCK_PIN, MSBFIRST, value); digitalWrite(LATCH_PIN, HIGH);}
#define DATA_PIN 4#define LATCH_PIN 3#define CLOCK_PIN 2 #define PLUS_PIN 6#define MINUS_PIN 7#define POTENTIOMETER_PIN A0 byte numbers[] = { B11111100, // 0 B01100000, // 1 B11011010, // 2 B11110010, // 3 B01100110, // 4 B10110110, // 5 B10111110, // 6 B11100000, // 7 B11111110, // 8 B11110110 // 9}; int n = 0;int lastPotentiometerValue = 0; void setup() { pinMode(DATA_PIN, OUTPUT); pinMode(LATCH_PIN, OUTPUT); pinMode(CLOCK_PIN, OUTPUT); pinMode(PLUS_PIN, INPUT); pinMode(MINUS_PIN, INPUT);} void loop(){ updateNumber(); writeRegister(numbers[n]); delay(10);} void updateNumber() { int input = analogRead(POTENTIOMETER_PIN); int potentiometerValue = input * 10 / 1024; if (potentiometerValue != lastPotentiometerValue) { n = potentiometerValue; lastPotentiometerValue = potentiometerValue; } if (digitalRead(PLUS_PIN) == HIGH) { n = (n+1) % 10; delay(200); } else if (digitalRead(MINUS_PIN) == HIGH) { n--; if (n < 0) { n = 9; } delay(200); }} void writeRegister(byte value){ digitalWrite(LATCH_PIN, LOW); shiftOut(DATA_PIN, CLOCK_PIN, MSBFIRST, value); digitalWrite(LATCH_PIN, HIGH);}In qualità di Affiliato Amazon riceviamo un guadagno dagli acquisti idonei
