mirror of
https://github.com/brendanhaines/kilncontroller.git
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56 lines
947 B
C++
56 lines
947 B
C++
#include <Wire.h>
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#include <LiquidCrystal_I2C.h>
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#include <max6675.h>
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#include "Adafruit_MCP23017.h"
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int MISO0 = 12;
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int CLK0 = 13;
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int CS0 = 2;
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LiquidCrystal_I2C lcd(0x27, 16, 2);
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MAX6675 t0(CLK0, CS0, MISO0);
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Adafruit_MCP23017 mcp;
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void setup() {
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// I2C
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Wire.pins(4, 5);
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// LCD
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lcd.init();
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lcd.init();
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lcd.backlight();
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lcd.setCursor(0, 0);
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lcd.print("Initializing... ");
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// MCP23017 GPIO expander
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mcp.begin();
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mcp.pinMode(8, OUTPUT);
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mcp.digitalWrite(8, HIGH);
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delay(100);
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mcp.digitalWrite(8, LOW);
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// Clear LCD
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lcd.setCursor(0, 0);
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lcd.clear();
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}
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void loop() {
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// Get value
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lcd.setCursor(0, 0);
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lcd.print(t0.readFahrenheit());
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lcd.print("F ");
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lcd.print(t0.readCelsius());
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lcd.print("C");
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// LED stuff
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lcd.setCursor(0, 1);
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lcd.print("LED: ON ");
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mcp.digitalWrite(8, HIGH);
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delay(2000);
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lcd.setCursor(0, 1);
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lcd.print("LED: OFF");
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mcp.digitalWrite(8, LOW);
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delay(2000);
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}
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