final deployed version

src/main/kotlin/dev/asdf00/visionfive/hc/GlobalDataStore.kt

@@ -4,9 +4,9 @@ import java.util.*
 
 object GlobalDataStore {
     @Volatile var targetTemp: Double = 22.5
-    @Volatile var reduction: Double = 2.0
+    @Volatile var reduction: Double = 2.5
     @Volatile var pval: Double = 0.1
-    @Volatile var ival: Double = 1.0 / 60
+    @Volatile var ival: Double = 0.02
     @Volatile var dval: Double = 0.0
 
     @Volatile var isSunny = false

src/main/kotlin/dev/asdf00/visionfive/hc/control/PidController.kt

@@ -6,15 +6,11 @@ import java.lang.Math.clamp
 import java.util.*
 
 class PidController(vararg val controlUnits: Controller) {
-    init {
-        if (controlUnits.size < 1)
-            throw IllegalArgumentException("PID-Controller needs motor control units to act")
-    }
 
     private var errorInt = 0.0
     private var errorLast = 0.0
 
-    private fun step(actual: Double, desired: Double): Double {
+    fun step(actual: Double, desired: Double): Double {
         val error = desired - actual
         errorInt = clamp(errorInt + error, 0.0 / GlobalDataStore.ival, 1.0 / GlobalDataStore.ival)
         val rv = GlobalDataStore.pval * error +

src/main/kotlin/dev/asdf00/visionfive/hc/server/Main.kt

@@ -1,16 +1,13 @@
 package dev.asdf00.visionfive.hc.server
 
 import com.sun.net.httpserver.HttpExchange
-
 import dev.asdf00.visionfive.hc.GlobalDataStore
 import dev.asdf00.visionfive.hc.control.PidController
 import dev.asdf00.visionfive.hc.gpio.Controller
 import dev.asdf00.visionfive.hc.gpio.usingPins
-
 import org.json.JSONArray
 import org.json.JSONException
 import org.json.JSONObject
-
 import java.math.BigDecimal
 import java.net.URI
 import java.net.http.HttpClient
@@ -20,12 +17,10 @@ import java.nio.charset.StandardCharsets
 import java.nio.file.Files
 import java.time.Duration
 import java.util.*
-import kotlin.collections.HashMap
 import kotlin.io.path.Path
-
 import kotlin.math.max
 
-const val DEBUG = true
+const val DEBUG = false
 
 const val SENSOR_ID = "sensorId.txt"
 

src/test/kotlin/PidTester.kt

@@ -0,0 +1,28 @@
+
+import dev.asdf00.visionfive.hc.GlobalDataStore
+import dev.asdf00.visionfive.hc.control.PidController
+import java.util.*
+
+
+fun main() {
+    val pid = PidController()
+    var myTime = 0
+    while (true) {
+        print("provide current temp (at ${
+            Calendar.getInstance().also {
+                it.set(Calendar.HOUR_OF_DAY, 0)
+                it.set(Calendar.MINUTE, 0)
+                it.set(Calendar.SECOND, 0)
+                it.add(Calendar.MINUTE, myTime)
+            }.time
+        }): ")
+        val t = readln()
+        if (t.isEmpty()) {
+            break
+        }
+        val nu = pid.step(t.toDouble(), GlobalDataStore.targetTemp)
+        println("setting the valves to ${(nu * 10_000).toInt().toDouble() / 100}%")
+        myTime += 2
+    }
+    println("bye ...")
+}