107 lines
3.2 KiB
C++
107 lines
3.2 KiB
C++
// In your secrets.h file, define the following:
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// char ssid[] = "";
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// char password[] = "";
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// const char *mqttUsername = "";
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// const char *mqttPassword = "";
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// const int port = 1883;
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// IPAddress server(192, 168, 1, 2);
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#include <Bounce2.h>
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#include <ESP8266WiFi.h>
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#include <PubSubClient.h>
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#include "secrets.h"
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const unsigned int motorPin = 14;
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const unsigned int feedButtonPin = 0;
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const unsigned int motorSwitchPin = 12;
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Bounce feedButtonDebounced = Bounce();
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Bounce motorSwitchDebounced = Bounce();
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const unsigned int jamTimeout = 2000;
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const unsigned int networkTimeout = 5000;
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const unsigned int debounce = 50;
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const char myName[] = "PrawnBot-ESP";
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const char *controlTopic = "devices/prawnbot";
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char statusTopic[] = "devices/prawnbot/status";
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long modeStartTime = 0;
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long lastWifiConnectAttempt = 0;
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long lastMQTTConnectAttempt = 0;
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int botMode = 0; // 0: Listening; 1: Dispensing; 2: Jam
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WiFiClient wifiClient;
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PubSubClient mqttClient(server, 1883, MQTTReceived, wifiClient);
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void MQTTReceived(char* incomingTopic, byte* incomingPayload, unsigned int payloadLength){
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String incomingString = String((char *)incomingPayload);
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incomingString = incomingString.substring(0, payloadLength);
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Serial.println(String(incomingTopic) + ": " + incomingString);
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if(incomingString == "ping") mqttClient.publish(incomingTopic, (char*)("pong"));
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if(incomingString == "feed" && botMode != 2) botMode = 1; //if not jammed
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}
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void setup(){
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pinMode(motorPin, OUTPUT);
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pinMode(feedButtonPin, INPUT_PULLUP);
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pinMode(motorSwitchPin, INPUT_PULLUP);
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motorSwitchDebounced.attach(motorSwitchPin);
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feedButtonDebounced.attach(feedButtonPin);
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motorSwitchDebounced.interval(debounce);
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feedButtonDebounced.interval(debounce);
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Serial.begin(115200);
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delay(10); //wait for serial
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}
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void connectWifi(){
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED){
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delay(250);
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Serial.print("-");
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}
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Serial.println("WiFi OK. IP: " + WiFi.localIP());
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}
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boolean connectMQTT(){
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if(mqttClient.connect(myName, mqttUsername, mqttPassword, statusTopic, 2, true, (char*)("offline"))){
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mqttClient.publish(statusTopic, (byte*)("online"), 6, true);
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mqttClient.subscribe(controlTopic);
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}
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}
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void loop(){
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if(WiFi.status() != WL_CONNECTED){
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if(millis() - lastWifiConnectAttempt > networkTimeout){
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lastWifiConnectAttempt=millis();
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connectWifi();
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}
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} else if(!mqttClient.loop()){
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if(millis() - lastMQTTConnectAttempt > networkTimeout){
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lastMQTTConnectAttempt=millis();
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connectMQTT();
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}
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}
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feedButtonDebounced.update();
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motorSwitchDebounced.update();
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switch (botMode){
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case 0: // Listening
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if(feedButtonDebounced.fell()){
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Serial.println("Button pressed");
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botMode = 1;
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}
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break;
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case 1: // Dispensing
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modeStartTime=millis();
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digitalWrite(motorPin, HIGH);
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if(motorSwitchDebounced.fell()){
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digitalWrite(motorPin, LOW);
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botMode = 0;
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modeStartTime = 0;
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Serial.println("Fed");
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mqttClient.publish(controlTopic, (char*)("fed"));
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}
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else if(millis() - modeStartTime > jamTimeout){
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botMode = 2; //jammed
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Serial.println("Jammed");
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mqttClient.publish(statusTopic, (char*)("jam"));
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}
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break;
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}
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}
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