commit 92d6218a582a5abc218aaa9503c366375ace702b
Author: David Zalesak <dz@pixx.cz>
Date:   Thu Dec 15 13:39:26 2022 +0100

    initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0e56cf2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+config.h
diff --git a/ESPsiton.ino b/ESPsiton.ino
new file mode 100644
index 0000000..a14d048
--- /dev/null
+++ b/ESPsiton.ino
@@ -0,0 +1,189 @@
+//========== Preprocesor ==========
+
+//---- Required ----
+#include <ESP8266WiFi.h>
+#include <ArduinoOTA.h>
+#include <SoftwareSerial.h>
+//------------------
+#include <ESPAsyncTCP.h>
+#include <ESPAsyncWebServer.h>
+
+#include "Tasker.h"
+
+#include "config.h"
+
+//========== Create objects ==========
+
+AsyncWebServer server(80);
+Tasker tasker;
+SoftwareSerial mySerial(5, 4);
+
+//========== Init variables ==========
+
+String metrics = "";
+byte nodeID;
+int napeti;
+int proud;
+int vykon;
+int teplota;
+int strida;
+unsigned long vyroba;
+byte byteRec;
+byte delka;
+byte cs;
+byte prijem[40];
+bool dataOK = false;
+
+
+//=================================
+
+
+void setup() {
+  //========== Wi-Fi setup ==========
+
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(STASSID, STAPSK);
+  while (WiFi.waitForConnectResult() != WL_CONNECTED) {
+    //Connection Failed! Rebooting...
+    delay(5000);
+    ESP.restart();
+  }
+
+  //========== OTA setup ==========
+
+  // Port defaults to 8266
+  // ArduinoOTA.setPort(8266);
+
+  // Hostname defaults to esp8266-[ChipID]
+  // ArduinoOTA.setHostname("myesp8266");
+
+  // No authentication by default
+  // ArduinoOTA.setPassword("admin");
+
+  // Password can be set with it's md5 value as well
+  // MD5(admin) = 21232f297a57a5a743894a0e4a801fc3
+  // ArduinoOTA.setPasswordHash("21232f297a57a5a743894a0e4a801fc3");
+  ArduinoOTA.begin();
+  SPIFFS.begin();
+
+  //========== Pin setup ==========
+
+  pinMode(4, OUTPUT);
+  digitalWrite(4, LOW);
+  pinMode(5, INPUT);
+
+  pinMode(LED_PIN, OUTPUT);
+  digitalWrite(LED_PIN, HIGH);
+
+  //========== Serial setup ==========
+
+  mySerial.begin(9600);
+
+  //========== Tasks init ==========
+
+  tasker.setInterval(otaHandle, 1000);
+
+  //========== Web server setup ==========
+
+  if (METRICS_EXPORT) {
+    server.on("/metrics", HTTP_GET, [](AsyncWebServerRequest * request) {
+      tasker.setTimeout(tripleLedBlink, 10);
+      request->send(200, "text/plain; charset=utf-8", metrics);
+    });
+    server.onNotFound(notFound);
+    server.begin();
+  }
+}
+
+// the loop routine runs over and over again forever:
+void loop() {
+  tasker.loop();
+
+  readSiton();
+}
+
+void otaHandle() {
+  ArduinoOTA.handle();
+}
+
+void notFound(AsyncWebServerRequest *request) {
+  request->send(404, "text/plain", "Not found");
+}
+void ledBlink() {
+  digitalWrite(LED_PIN, LOW);
+  delay(200);
+  digitalWrite(LED_PIN, HIGH);
+}
+void tripleLedBlink() {
+  digitalWrite(LED_PIN, LOW);
+  delay(50);
+  digitalWrite(LED_PIN, HIGH);
+  delay(50);
+  digitalWrite(LED_PIN, LOW);
+  delay(50);
+  digitalWrite(LED_PIN, HIGH);
+  delay(50);
+  digitalWrite(LED_PIN, LOW);
+  delay(50);
+  digitalWrite(LED_PIN, HIGH);
+}
+void readSiton() {
+  //===========================================================================
+  //cte ze serial portu data ve formatu EasyTransfer
+  if (mySerial.available() >= 0x25) {
+    delay(10);
+    byteRec = mySerial.read();    // Precte byte
+    if (byteRec == 0x06) {
+      byteRec = mySerial.read();
+      if (byteRec == 0x85) {
+        ledBlink();
+        delka = mySerial.read();
+        cs = delka;
+        for (byte i = 0; i < delka ; i++) {
+          byteRec = mySerial.read();
+          prijem[i] = byteRec;
+          cs ^= byteRec; //kontrolni soucet
+        }
+        //Serial.println();
+        byteRec = mySerial.read();
+        //Serial.println(byteRec, HEX);
+        //Serial.print(cs, HEX);
+        if (cs == byteRec) { //kontrolni soucet OK data jsou platna
+          dataOK = true;
+          nodeID = prijem[0];
+          napeti = word(prijem[5], prijem[4]);
+          proud  = word(prijem[7], prijem[6]);
+          vykon  = word(prijem[9], prijem[8]);
+          teplota = word(prijem[11], prijem[10]);
+          strida = word(prijem[13], prijem[12]);
+
+          vyroba  = (long)prijem[23] << 24;
+          vyroba += (long)prijem[22] << 16;
+          vyroba += (long)prijem[21] << 8;
+          vyroba += (long)prijem[20];
+
+          metrics = "dataOK ";
+          metrics += dataOK;
+          metrics += "\nnodeID ";
+          metrics += nodeID;
+          metrics += "\nnapeti ";
+          metrics += napeti;
+          metrics += "\nproud ";
+          metrics += proud;
+          metrics += "\nvykon ";
+          metrics += vykon;
+          metrics += "\nteplota ";
+          metrics += teplota;
+          metrics += "\nstrida ";
+          metrics += strida;
+          metrics += "\nvyroba ";
+          metrics += vyroba;
+        } else {
+          dataOK = false;
+          metrics = "dataOK ";
+          metrics += dataOK;
+        }
+      }
+    }
+  }
+}
diff --git a/config.h.example b/config.h.example
new file mode 100644
index 0000000..b406423
--- /dev/null
+++ b/config.h.example
@@ -0,0 +1,7 @@
+#define STASSID "SSID"
+#define STAPSK  "heslo"
+
+//Light on power on, blink on request
+#define LED_PIN 2
+
+#define METRICS_EXPORT 1