Code: Select all
#include <Adafruit_NeoPixel.h> // 1
const int pixelPin = 9; // 2
const int numPixels = 5; // 3
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(numPixels, pixelPin, NEO_GRB + NEO_KHZ800); // 4
void setup() {
pixels.begin(); // 5
}
void loop() {
for (int i = 0; i < numPixels; i++) { // 6
int red = random(255);
int green = random(255);
int blue = random(255);
pixels.setPixelColor(i, pixels.Color(red, green, blue)); // 7
pixels.show(); // 8
}
delay(100L);
}
Code: Select all
#include <OneWire.h>
#include <DallasTemperature.h>
#include <PID_v1.h>
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
const double minTemp = 0.0;
const double maxTemp = 20.0;
double kp = 1500;
double ki = 50.0;
double kd = 0.0;
const int tempPin = 2;
const int coolPin = 9;
const int potPin = A0;
const long period = 1000; // >750
OneWire oneWire(tempPin);
DallasTemperature sensors(&oneWire);
Adafruit_SSD1306 display(4);
double setTemp = 0.0;
double measuredTemp = 0.0;
double outputPower = 0.0;
long lastSampleTime = 0;
PID myPID(&measuredTemp, &outputPower, &setTemp, kp, ki, kd, REVERSE);
void setup() {
pinMode(coolPin, OUTPUT);
Serial.begin(9600);
sensors.begin();
myPID.SetSampleTime(1000); // (4)
myPID.SetMode(AUTOMATIC);
display.begin(SSD1306_SWITCHCAPVCC, 0x3c);
}
void loop() {
long now = millis();
if (now > lastSampleTime + period) {
checkTemperature();
lastSampleTime = now;
}
setTemp = readSetTempFromPot();
}
void checkTemperature() {
measuredTemp = readTemp();
Serial.print(measuredTemp);
Serial.print(", ");
Serial.print(setTemp);
Serial.print(", ");
Serial.println(outputPower);
myPID.Compute();
analogWrite(coolPin, outputPower);
updateDisplay();
}
double readSetTempFromPot() {
static double oldTemp = 0;
int raw = analogRead(potPin);
double temp = map(raw, 0, 1023, minTemp, maxTemp);
if (oldTemp != temp) {
updateDisplay();
oldTemp = temp;
}
return temp;
}
double readTemp() {
sensors.requestTemperatures();
return sensors.getTempCByIndex(0);
}
void updateDisplay() {
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0,0);
display.print("Temp:");
display.println(measuredTemp);
display.print("Set: ");
display.println(setTemp);
display.display();
}
Code: Select all
void updateDisplay() {
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.print("Температура:");
display.println(measuredTemp);
display.print("Установка: ");
display.println(setTemp);
display.display();
}