Fermenter History

data/Fermenter/config.json

@@ -1,6 +1,6 @@
 {
   "pid": {
-    "p": 5,
+    "p": 1,
     "i": 0,
     "d": 0,
     "target": 0

src/node/Fermenter/Fermenter.cpp

@@ -16,7 +16,7 @@ void patrixSetup() {
   heater.setup();
   rotary.setup();
 
-  pid.setup();
+  pidSetup();
   httpSetup2();
 }
 
@@ -25,7 +25,7 @@ void patrixLoop() {
 
   ds18b20.loop();
   temperature.loop();
-  pid.loop();
+  pidLoop();
   rotary.loop();
   program.loop();
 

src/node/Fermenter/pid.cpp

@@ -1,8 +1,25 @@
+#include <patrix/Patrix.h>
 #ifdef NODE_FERMENTER
 
 #include "pid.h"
 #include "config.h"
 
+struct History {
+
+  int16_t target;
+
+  int16_t temperature;
+
+  uint8_t heater;
+
+};
+
+History history[3 * 60];
+
+History* historyPtr = history;
+
+unsigned long historyLastMinute = 0;
+
 DS18B20 ds18b20(
   "DS18B20",
   D4
@@ -39,4 +56,20 @@ void addTarget(const double delta) {
   config.markDirty();
 }
 
+void pidSetup() {
+  pid.setup();
+}
+
+void pidLoop() {
+  pid.loop();
+  const auto currentMinute = millis() / 60000;
+  if (historyLastMinute != currentMinute) {
+    historyLastMinute = currentMinute;
+    historyPtr = (historyPtr - history + 1) % std::size(history) + history;
+  }
+  historyPtr->heater = static_cast<uint8_t>(heater.getPercent());
+  historyPtr->target = static_cast<int16_t>(pid.getTarget() * 10);
+  historyPtr->temperature = static_cast<int16_t>(temperature.getValue() * 10);
+}
+
 #endif

src/node/Fermenter/pid.h

@@ -17,4 +17,8 @@ extern PIDController pid;
 
 void addTarget(double delta);
 
+void pidSetup();
+
+void pidLoop();
+
 #endif

src/patrix/Patrix.cpp

@@ -1,6 +1,8 @@
 #include <LittleFS.h>
+
 #include "Patrix.h"
 #include "http.h"
+#include "mqtt.h"
 #include "system.h"
 
 void setup() {

src/patrix/Patrix.h

@@ -1,9 +1,6 @@
 #ifndef PATRIX_H
 #define PATRIX_H
 
-#include "wifi.h"
-#include "mqtt.h"
-
 void patrixSetup();
 
 void patrixLoop();