148 lines
3.1 KiB
C++
148 lines
3.1 KiB
C++
//Built-in
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#include <Arduino.h>
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#include <SPI.h>
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#include <Ethernet.h>
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// Additoinal Libraries
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#include <ArduinoJson.h>
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#include <MQTT.h>
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#include <LiquidCrystal_I2C.h>
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#include <LiquidMenu.h> // LiquidMenu_config.h needs to be modified to use I2C.
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#include <Button.h>
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#include <MD_REncoder.h>
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// Secret stuff
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#include "config.h"
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// Pin definitions
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#define encoderCLK 2
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#define encoderDT 3
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#define encoderBTN 4
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#define kettlePWM 5
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#define TOPIC_PREFIX "brewery/"
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#define BKTOPIC "setpoint/bk"
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// Global variables.
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byte KettleDuty = 0;
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bool KettleOn = false;
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// User I/O objects.
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Button Enter(encoderBTN);
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MD_REncoder rotary = MD_REncoder(encoderDT, encoderCLK);
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LiquidCrystal_I2C lcd(0x27,20,4);
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float output = 0;
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int updateInterval = 1000;
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EthernetClient net;
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MQTTClient mqtt_client;
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// Return a character array to represent the
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// On/Off state of the kettle.
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char* KettleState() {
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if (KettleOn) {
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return (char*)"On";
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} else {
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return (char*)"Off";
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}
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}
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// Interrupt function to run when encoder is turned.
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//
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// Increases/decreases the kettle output to a max
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// of 100% and minimum of 0%.
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void doEncoder()
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{
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uint8_t result = rotary.read();
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if (result == DIR_CW && KettleDuty < 100) {
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KettleDuty++;
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} else if (result == DIR_CCW && KettleDuty > 0) {
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KettleDuty--;
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}
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}
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void UpdateBoilKettle(){
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static byte last_kettle_duty = 0;
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if (Enter.pressed()) {
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KettleOn = !KettleOn;
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menu.update();
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}
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if (last_kettle_duty != KettleDuty) {
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last_kettle_duty = KettleDuty;
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menu.update();
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}
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if (KettleOn) {
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slowPWM(kettlePWM, KettleDuty, 1000);
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} else {
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slowPWM(kettlePWM, 0, 1000);
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}
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}
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// LCD menu setup.
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LiquidLine KettleState_line(0, 0, "Boil Kettle ", KettleState);
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LiquidLine kettle_power_line(0, 1, "Kettle Power % ", KettleDuty);
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LiquidScreen home_screen(KettleState_line, kettle_power_line);
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LiquidMenu menu(lcd);
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void setup() {
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Serial.begin(9600);
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rotary.begin();
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Ethernet.begin(mac, ip);
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Serial.println("Setting up...");
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attachInterrupt(digitalPinToInterrupt(encoderCLK), doEncoder, CHANGE);
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attachInterrupt(digitalPinToInterrupt(encoderDT), doEncoder, CHANGE);
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pinMode(encoderCLK, INPUT_PULLUP);
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pinMode(encoderDT, INPUT_PULLUP);
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pinMode(encoderBTN, INPUT_PULLUP);
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// if you get a connection, report back via serial:
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if (net.connect("www.google.com", 80)) {
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Serial.print("you connected to ");
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Serial.println(net.remoteIP());
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// Make a HTTP request:
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net.println("GET /search?q=arduino HTTP/1.1");
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net.println("Host: www.google.com");
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net.println("Connection: close");
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net.println();
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SetupMQTT("192.168.1.198");
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} else {
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// if you didn't get a connection to the server:
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Serial.println("connection failed");
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}
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lcd.init();
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lcd.backlight();
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menu.init();
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menu.add_screen(home_screen);
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menu.update();
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};
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void loop() {
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UpdateBoilKettle();
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static unsigned long lastRun = millis() - updateInterval;
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unsigned long elapsedTime = (millis() - lastRun);
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if (elapsedTime >= updateInterval) {
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mqtt_client.loop();
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//if (!mqtt_client.connected()) ConnectMQTT();
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SendSensorData();
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lastRun = millis();
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}
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}
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