Merge remote-tracking branch 'origin/use-eeprom' into no-more-strings

boil_kettle/boil_kettle.ino

@@ -2,6 +2,7 @@
 #include <Arduino.h>
 #include <SPI.h>
 #include <Ethernet.h>
+#include <EEPROM.h>
 
 // Additoinal Libraries
 #include <cJSON.h>
@@ -13,6 +14,7 @@
 
 // My Includes
 #include "config.h"
+#include "eeprom_init.h"
 #include "button.h"
 #include "slowPWM.h"
 
@@ -72,6 +74,7 @@ LiquidScreen home_screen(KettleState_line, kettle_power_line);
 LiquidMenu menu(lcd);
 
 void setup() {
+  StoreEEPROM();
 
   unsigned long lastRun = millis() - UpdateInterval;
   Serial.begin(9600);

boil_kettle/eeprom_init.h

@@ -0,0 +1,83 @@
+#include <EEPROM.h>
+
+const uint8_t CompileTimeP[] PROGMEM = __DATE__ " " __TIME__;
+const size_t ConfAddress = sizeof(CompileTimeP);
+
+unsigned char b, e = -1, *p = (uint8_t*)CompileTimeP - 1;
+
+struct Vessel {
+  char name[16];
+  char setpoint[20];
+  char sensor[20];
+  double Rref;
+  double RNominal;
+};
+
+struct Topic {
+  char root[10];
+  Vessel mash;
+  Vessel boil;
+};
+
+struct Mqtt {
+  IPAddress broker;
+  char user[10];
+  char password[21];
+  Topic topic;
+};
+
+struct ConfigData {
+  Mqtt mqtt;
+  int interval;
+  int period;
+  uint8_t threshold;
+  uint8_t hysteresis;
+};
+
+void StoreEEPROM() {
+  while( b = pgm_read_byte( ++p ) ){
+    if( b !=  EEPROM[++e] ){
+
+      Vessel BoilKettle;
+      strcpy(BoilKettle.name, "boil_kettle");
+      strcpy(BoilKettle.setpoint, BOIL_SETPOINT_TOPIC);
+      strcpy(BoilKettle.sensor, BOIL_ACTUAL_TOPIC);
+      BoilKettle.Rref = RREF_KETTLE;
+      BoilKettle.RNominal = RNOMINAL_KETTLE;
+
+    //  Vessel MashTun {mashname, MASH_SETPOINT_TOPIC, MASH_ACTUAL_TOPIC, RREF_MASH, RNOMINAL_MASH};
+      Vessel MashTun;
+      strcpy(MashTun.name, "mash_tun");
+      strcpy(MashTun.setpoint, MASH_SETPOINT_TOPIC);
+      strcpy(MashTun.sensor, MASH_ACTUAL_TOPIC);
+      MashTun.Rref = RREF_MASH;
+      MashTun.RNominal = RNOMINAL_MASH;
+
+      Topic mqtt_topics;
+      strcpy(mqtt_topics.root,TOPIC_ROOT);
+      mqtt_topics.mash = MashTun;
+      mqtt_topics.boil = BoilKettle;
+
+      Mqtt mqtt_data;
+      mqtt_data.broker = MQTT_BROKER;
+      strcpy(mqtt_data.user, MQTT_USER);
+      strcpy(mqtt_data.password, MQTT_PASSWORD);
+      mqtt_data.topic = mqtt_topics;
+
+
+      ConfigData conf {
+        mqtt_data,
+        UpdateInterval,
+        PeriodPWM,
+        ThreshPWR,
+        Hysteresis
+      };
+
+      EEPROM.put(ConfAddress, conf);
+      Serial.println(conf.mqtt.broker);
+
+      while( b = pgm_read_byte( p++ ) ) EEPROM[e++] = b;
+      break;
+    }
+  }
+}

boil_kettle/mqtt.ino

@@ -1,21 +1,34 @@
 void ConnectMQTT() {
-  static const char *password = MQTT_PASSWORD;
+  ConfigData config;
-  static const char *user = MQTT_USER;
+  EEPROM.get(ConfAddress, config);
+  
+  static const char *user = config.mqtt.user;
+  static const char *password = config.mqtt.password;
+  //config.mqtt.topic.root
+  //config.mqtt.broker
+
   while (!mqtt_client.connect("brewhouse", user, password)) {
     Serial.print(".");
     delay(1000);
   }
 
   char topic[30];
-  strcpy(topic,TOPIC_ROOT);
+  strcpy(topic,config.mqtt.topic.root);
-  strcat(topic,BOIL_SETPOINT_TOPIC);
+  strcat(topic,config.mqtt.topic.boil.setpoint);
+  mqtt_client.subscribe(topic);
+
+  strcpy(topic,config.mqtt.topic.root);
+  strcat(topic,config.mqtt.topic.mash.setpoint);
   mqtt_client.subscribe(topic);
 }
 
 void MessageReceived(char* topic, byte* payload, unsigned int length) {
+  ConfigData config;
+  EEPROM.get(ConfAddress, config);
+
   char buf[30];
-  strcpy(buf,TOPIC_ROOT);
+  strcpy(buf,config.mqtt.topic.root);
-  strcat(buf,BOIL_SETPOINT_TOPIC);
+  strcat(buf,config.mqtt.topic.boil.setpoint);
 
   char msg[length+1];
 
@@ -37,6 +50,8 @@ void MessageReceived(char* topic, byte* payload, unsigned int length) {
 }
 
 static void SendSensorData() {
+  ConfigData config;
+  EEPROM.get(ConfAddress, config);
 
   char *string = NULL;
   cJSON *entity = NULL;
@@ -44,14 +59,15 @@ static void SendSensorData() {
   cJSON *units = NULL;
 
   cJSON *monitor = cJSON_CreateObject();
-  cJSON_AddStringToObject(monitor, "entity", "boil_kettle");
+  cJSON_AddStringToObject(monitor, "entity", config.mqtt.topic.boil.name);
   cJSON_AddNumberToObject(monitor, "setpoint", KettleDuty);
   cJSON_AddStringToObject(monitor, "units", "%");
   char *msg = cJSON_Print(monitor);
 
   char topic[30];
-  strcpy(topic,TOPIC_ROOT);
+  strcpy(topic,config.mqtt.topic.root);
-  strcat(topic,BOIL_ACTUAL_TOPIC);
+  strcat(topic,config.mqtt.topic.boil.sensor);
+
 
   mqtt_client.publish(topic, msg);