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Output from MCP23017 working

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Brendan Haines 2017-01-24 23:05:59 -07:00
parent ae12993f55
commit ffb56e01da
1 changed files with 22 additions and 11 deletions
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29
Kiln_Controller.ino
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@ -12,40 +12,51 @@ MAX6675 t0(CLK0, CS0, MISO0);
Adafruit_MCP23017 mcp;
void setup() {
Wire.pins(4,5);
// LED
pinMode(2, OUTPUT);
// I2C
Wire.pins(4, 5);
// LCD
lcd.init();
lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
lcd.setCursor(0, 0);
lcd.print("Initializing... ");
// MCP23017 GPIO expander
mcp.begin();
mcp.pinMode(0, OUTPUT);
mcp.digitalWrite(0, HIGH);
digitalWrite(2, LOW);
delay(100);
mcp.digitalWrite(0, LOW);
digitalWrite(2, HIGH);
// Clear LCD
lcd.setCursor(0,0);
lcd.print(" ");
lcd.setCursor(0, 0);
lcd.clear();
}
void loop() {
// Get value
lcd.setCursor(0,0);
lcd.setCursor(0, 0);
lcd.print(t0.readFahrenheit());
lcd.print("F ");
lcd.print(t0.readCelsius());
lcd.print("C");
// LED stuff
lcd.setCursor(0,1);
lcd.setCursor(0, 1);
lcd.print("LED: ON ");
mcp.digitalWrite(0, HIGH);
delay(1000);
lcd.setCursor(0,1);
digitalWrite(2, LOW);
delay(2000);
lcd.setCursor(0, 1);
lcd.print("LED: OFF");
mcp.digitalWrite(0, LOW);
delay(1000);
digitalWrite(2, HIGH);
delay(2000);
}