mirror of
https://github.com/brendanhaines/kilncontroller.git
synced 2024-09-19 20:35:57 -06:00
146 lines
2.8 KiB
C++
146 lines
2.8 KiB
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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#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266WebServer.h>
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///// USER SETTINGS /////
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// WiFi Settings
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const char *ssid = "ESPap";
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const char *password = "thereisnospoon";
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// Temperature Offsets
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int t1off = 0;
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int t2off = 0;
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int t3off = 0;
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// Pinout
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int CLK0 = 13;
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int MISO0 = 12;
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int CS1 = 16;
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int CS2 = 14;
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int CS3 = 15;
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///// END USER SETTINGS /////
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// Thermocouple stuff
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MAX6675 t1(CLK0, CS1, MISO0);
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MAX6675 t2(CLK0, CS2, MISO0);
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MAX6675 t3(CLK0, CS3, MISO0);
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int temp1, temp2, temp3;
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// Output Stuff
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LiquidCrystal_I2C lcd(0x3f, 20, 4);
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Adafruit_MCP23017 mcp;
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// WiFi Stuff
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ESP8266WebServer server(80);
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// Control Stuff
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int onTemp = 70;
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int offTemp = 80;
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///// WEB SERVER /////
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void handleRoot() {
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server.send(200, "text/html", ""
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"<h1>Kiln Controller V1</h1>"
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"<a href=\"/page2\">Page 2</a>"
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"");
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}
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void handlePage2() {
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server.send(200, "text/html", ""
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"<h1>Page 2</h1>"
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"<a href=\"/\">Home</a>"
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"");
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}
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///// SETUP /////
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void setup() {
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// Onboard LED
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pinMode(2, OUTPUT);
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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(0, OUTPUT);
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mcp.pinMode(1, OUTPUT);
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mcp.pinMode(2, OUTPUT);
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mcp.pinMode(3, OUTPUT);
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mcp.pinMode(4, OUTPUT);
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mcp.digitalWrite(0, HIGH);
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mcp.digitalWrite(1, HIGH);
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mcp.digitalWrite(2, HIGH);
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mcp.digitalWrite(3, HIGH);
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delay(100);
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mcp.digitalWrite(0, LOW);
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mcp.digitalWrite(1, LOW);
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mcp.digitalWrite(2, LOW);
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mcp.digitalWrite(3, LOW);
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// Temperature Inital Values
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temp1 = t1.readFahrenheit();
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temp2 = t2.readFahrenheit();
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temp3 = t3.readFahrenheit();
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// Access Point Setup
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WiFi.softAP(ssid, password);
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IPAddress myIP = WiFi.softAPIP();
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server.on("/", handleRoot);
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server.on("/page2", handlePage2);
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server.begin();
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lcd.clear();
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lcd.setCursor(0, 0); lcd.print("SSID: "); lcd.print(ssid);
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lcd.setCursor(0, 1); lcd.print("PSWD: "); lcd.print(password);
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lcd.setCursor(0, 2); lcd.print("IP : "); lcd.print(myIP);
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delay(1000);
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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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server.handleClient();
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// Get values
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temp1 = t1.readFahrenheit() + t1off;
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temp2 = t2.readFahrenheit() + t2off;
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temp3 = t3.readFahrenheit() + t3off;
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// Write to LCD
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lcd.clear();
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lcd.setCursor(0, 0);
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lcd.print("1: ");
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lcd.print(temp1);
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lcd.print(" F");
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lcd.setCursor(0, 1);
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lcd.print("2: ");
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lcd.print(temp2);
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lcd.print(" F");
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lcd.setCursor(0, 2);
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lcd.print("3: ");
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lcd.print(temp3);
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lcd.print(" F");
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// Heartbeat LED
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digitalWrite(2, LOW);
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delay(100);
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digitalWrite(2, HIGH);
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delay(900);
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}
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