Reservoir Mount Coolant Temp Display

thingiverse

#include <Adafruit_SSD1306.h> #include <splash.h> /********************************************************************* This is an example for reading the temperature out of a DS18B20 sensor and displaying the result on an SSD1306 128x64 OLED display over the I2C bus. Temperature is displayed in degrees C and F. Gadget Reboot *********************************************************************/ #include <Wire.h> #include <OneWire.h> #include <DallasTemperature.h> #include <Adafruit_SSD1306.h> #include <adafruit_GFX.h> #include <Fonts/Org_01.h> #define ONE_WIRE_BUS 2 // DS18B20 data wire is connected to input 2 #define OLED_RESET 4 // Adafruit needs this but we don't use for I2C #define NUM_LEDS 10 #define DATA_PIN 7 DeviceAddress thermometerAddress; // custom array type to hold 64 bit device address Adafruit_SSD1306 display(OLED_RESET); // create a display instance OneWire oneWire(ONE_WIRE_BUS); // create a oneWire instance to communicate with temperature IC DallasTemperature tempSensor(&oneWire); // pass the oneWire reference to Dallas Temperature void setup() { Serial.begin(9600); display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C address of the display display.clearDisplay(); // clear the display buffer display.display(); // update display Serial.println("DS18B20 Temperature IC Test"); Serial.println("Locating devices..."); tempSensor.begin(); // initialize the temp sensor if (!tempSensor.getAddress(thermometerAddress, 0)) Serial.println("Unable to find Device."); else { Serial.print("Device 0 Address: "); printAddress(thermometerAddress); Serial.println(); } tempSensor.setResolution(thermometerAddress, 11); // set the temperature resolution (9-12) } void loop() { tempSensor.requestTemperatures(); // request temperature sample from sensor on the one wire bus displayTemp(tempSensor.getTempC(thermometerAddress)); // show temperature on OLED display delay(500); // update readings every half a second } void displayTemp(float temperatureReading) { // temperature comes in as a float with 2 decimal places display.clearDisplay(); display.setTextSize(1); display.setTextColor(WHITE); display.setCursor(10, 0); display.println("Coolant Temperature"); display.setTextSize(3); display.setCursor(14, 10); display.print(temperatureReading, 1); // rounded to 1 decimal place display.print((char)247); // degree symbol display.println("C"); Serial.print(temperatureReading); Serial.print("°"); Serial.print("C"); display.display(); // update the OLED display with all the new text } void printAddress(DeviceAddress deviceAddress) { // for (uint8_t i = 0; i < 8; i++) // { // if (deviceAddress[i] < 16) Serial.print("0"); // Serial.print(deviceAddress[i], HEX); // } }