Updated readme

.gitignore

@@ -0,0 +1,2 @@
+.vscode
+*.code-workspace

P1Meter.ino

@@ -1,22 +1,68 @@
-// #include <TimeLib.h>
+#include <TimeLib.h>
+#include <NTPClient.h>
 #include <SoftwareSerial.h>
 #include <ESP8266WiFi.h>
 #include <ESP8266mDNS.h>
 #include <ESP8266HTTPClient.h>
 #include <WiFiUdp.h>
 #include <ArduinoOTA.h>
+#include <Button2.h>
+#include <Timer.h>
 #include "CRC16.h"
+#include <SPI.h>
+#include <Adafruit_GFX.h>
+#include <Fonts/Org_01.h>
+#include <Adafruit_PCD8544.h>
 
-//===Change values from here===
+// Function prototypes
-const char* ssid = "WIFISSID";
+void reboot();
-const char* password = "PASSWORD";
+time_t NTPgetTime();
+void drawMenu();
+
+// Time related settings
+Timer t;
+WiFiUDP ntpUDP;
+NTPClient timeClient(ntpUDP, "europe.pool.ntp.org", 3600, 10000);
+
+// Display settings
+//// Software SPI (slower updates, more flexible pin options):
+//// pin 7 - Serial clock out (SCLK)
+//// pin 6 - Serial data out (DIN)
+//// pin 5 - Data/Command select (D/C)
+//// pin 4 - LCD chip select (CS)
+//// pin 3 - LCD reset (RST)
+Adafruit_PCD8544 display = Adafruit_PCD8544(D7, D6, D5, D4, D3);
+int tab = 0;
+int tabCount = 3;
+
+// LED settings
+#define ledPin D8
+int ledBrightness = 192;
+void ledOff();
+int ledTimeout;
+
+// Button settings
+#define buttonPin D2
+Button2 button = Button2(buttonPin);
+
+// Wifi Settings
+const char *ssid = "*";
+const char *password = "*";
 const char *hostName = "ESPP1Meter";
-const char* domoticzIP = "192.168.1.35";
+
-const int domoticzPort = 8090;
+// Server settings
-const int domoticzGasIdx = 291;
+const char *apiIP = "192.168.2.6";
-const int domoticzEneryIdx = 294;
+const int apiPort = 3000;
-const bool outputOnSerial = true;
+const char *apiKey = "*";
-//===Change values to here===
+const int gasIdx = 291;
+const int energyIdx = 294;
+const bool outputOnSerial = false;
+
+// Statistics variables
+unsigned long telegramsTotal = 0;
+unsigned long telegramsInvalid = 0;
+unsigned long postedTotal = 0;
+unsigned long postedFailed = 0;
 
 // Vars to store meter readings
 long mEVLT = 0; //Meter reading Electrics - consumption low tariff
@@ -28,135 +74,350 @@ long mEAT = 0;  //Meter reading Electrics - Actual return
 long mGAS = 0;  //Meter reading Gas
 long prevGAS = 0;
 
-
 #define MAXLINELENGTH 128 // longest normal line is 47 char (+3 for \r\n\0)
 char telegram[MAXLINELENGTH];
-
-#define SERIAL_RX     D5  // pin for SoftwareSerial RX
-SoftwareSerial mySerial(SERIAL_RX, -1, true, MAXLINELENGTH); // (RX, TX. inverted, buffer)
-
 unsigned int currentCRC = 0;
 
-void SendToDomoLog(char* message)
+// P1 Serial settings
-{
+#define SERIAL_RX D1                           // pin for SoftwareSerial RX
-  char url[512];
+SoftwareSerial mySerial(SERIAL_RX, -1, false); // (RX, TX, inverted)
-  sprintf(url, "http://%s:%d/json.htm?type=command&param=addlogmessage&message=%s", domoticzIP, domoticzPort, message); 
-}
 
-void setup() {
+void setup()
+{
+  // Init Serial
   Serial.begin(115200);
-  Serial.println("Booting");
+  delay(50);
+
+  // Init LED
+  pinMode(ledPin, OUTPUT);
+  analogWrite(ledPin, ledBrightness);
+
+  // Init Button
+  button.setReleasedHandler(press);
+
+  // Init Display
+  display.begin();
+  display.setContrast(50);
+  display.setFont(&Org_01);
+  drawMenu();
+
+  // Init WiFi
   WiFi.mode(WIFI_STA);
+
+  display.println("Connecting to:");
+  display.print(" ");
+  display.println(ssid);
+  display.display();
+
   WiFi.begin(ssid, password);
 
-  while (WiFi.waitForConnectResult() != WL_CONNECTED) {
+  while (WiFi.waitForConnectResult() != WL_CONNECTED)
+  {
     Serial.println("Connection Failed! Rebooting...");
+    drawMenu();
+    display.println("Connection Failed!");
+    display.display();
     delay(5000);
     ESP.restart();
   }
+
+  // Init P1 Serial
   mySerial.begin(115200);
 
-  // Port defaults to 8266
+  // Init ArduinoOTA
-  // ArduinoOTA.setPort(8266);
+  //// Port defaults to 8266
+  ArduinoOTA.setPort(8266);
 
-  // Hostname defaults to esp8266-[ChipID]
+  //// Hostname defaults to esp8266-[ChipID]
   ArduinoOTA.setHostname(hostName);
 
-  // No authentication by default
+  //// No authentication by default
   // ArduinoOTA.setPassword((const char *)"123");
 
   ArduinoOTA.onStart([]() {
+    drawMenu();
+    display.println("OTA Update");
+    display.display();
+
     Serial.println("Start");
   });
   ArduinoOTA.onEnd([]() {
     Serial.println("\nEnd");
   });
   ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+    drawMenu();
+    display.println("OTA Update");
+    display.printf("Progress: %u%%\r", (progress / (total / 100)));
+    display.display();
+
     Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
   });
   ArduinoOTA.onError([](ota_error_t error) {
+    drawMenu();
+    display.println("OTA Update");
+    display.printf("Error[%u]: ", error);
+    display.display();
+
     Serial.printf("Error[%u]: ", error);
-    if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");
+    if (error == OTA_AUTH_ERROR)
-    else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");
+      Serial.println("Auth Failed");
-    else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");
+    else if (error == OTA_BEGIN_ERROR)
-    else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");
+      Serial.println("Begin Failed");
-    else if (error == OTA_END_ERROR) Serial.println("End Failed");
+    else if (error == OTA_CONNECT_ERROR)
+      Serial.println("Connect Failed");
+    else if (error == OTA_RECEIVE_ERROR)
+      Serial.println("Receive Failed");
+    else if (error == OTA_END_ERROR)
+      Serial.println("End Failed");
   });
   ArduinoOTA.begin();
-  Serial.println("Ready");
+
-  Serial.print("IP address: ");
+  // Init Time
-  Serial.println(WiFi.localIP());
+  timeClient.begin();
+
+  time_t test = NTPgetTime();
+  while (test < 10000)
+  {
+    test = NTPgetTime();
   }
 
+  setTime(NTPgetTime());
+  getExternalTime NtpTime = &NTPgetTime;
+  setSyncProvider(NtpTime);
+  setSyncInterval(3600);
 
-bool SendToDomo(int idx, int nValue, char* sValue)
+  display.println("Time set");
+  display.display();
+  delay(1000);
+
+  // Exit setup
+  drawTab(2);
+  ledTimeout = t.after(5000, ledOff, (void *)0);
+}
+
+// Reboot the ESP
+void reboot()
+{
+  drawMenu();
+  display.println("Scheduled reboot");
+  display.display();
+  delay(5000);
+  ESP.restart();
+}
+
+// Update Time
+time_t NTPgetTime()
+{
+  timeClient.update();
+  return timeClient.getEpochTime();
+}
+
+// Turn of the backlight LEDs
+void ledOff(void *context)
+{
+  tab = 0;
+  drawTab(tab);
+  analogWrite(ledPin, 0);
+}
+
+// Button action
+void press(Button2 &btn)
+{
+  analogWrite(ledPin, ledBrightness);
+  t.stop(ledTimeout);
+  ledTimeout = t.after(10000, ledOff, (void *)0);
+
+  if ((tab + 1) == tabCount)
+  {
+    tab = 0;
+  }
+  else
+  {
+    tab++;
+  }
+  drawTab(tab);
+}
+
+// Draw top bar
+void drawMenu()
+{
+  display.clearDisplay();
+  display.setCursor(0, 4);
+  display.println("P1 Reader");
+  display.drawLine(0, 6, 84, 6, 1);
+
+  display.display();
+  display.setCursor(0, 12);
+}
+
+void drawTab(int no)
+{
+  drawMenu();
+  switch (no)
+  {
+  // Network
+  case 0:
+    drawMenu();
+
+    // SSID
+    display.println("Connected to:");
+    display.print(" ");
+    display.println(ssid);
+
+    // Own IP
+    display.println("IP address: ");
+    display.print(" ");
+    display.println(WiFi.localIP());
+
+    // Target server
+    display.println("Target host: ");
+    display.print(" ");
+    display.println(String(apiIP) + ":" + String(apiPort));
+    break;
+
+  // Stats
+  case 1:
+    drawMenu();
+
+    // Telegrams
+    display.println("Telegrams");
+    display.print(" Total: ");
+    display.println(String(telegramsTotal));
+    display.print(" Invalid: ");
+    display.println(String(telegramsInvalid));
+
+    // Posted
+    display.println("Posted");
+    display.print(" Total: ");
+    display.println(String(postedTotal));
+    display.print(" Failed: ");
+    display.println(String(postedFailed));
+    break;
+
+  // Time
+  case 2:
+    display.println("Current time:");
+
+    // Time
+    display.print(" ");
+    if (hour() < 10)
+    {
+      display.print("0");
+    }
+    display.print(hour());
+    display.print(":");
+    if (minute() < 10)
+    {
+      display.print("0");
+    }
+    display.println(minute());
+
+    // Date
+    display.print(" ");
+    if (day() < 10)
+    {
+      display.print("0");
+    }
+    display.print(day());
+    display.print("-");
+    if (month() < 10)
+    {
+      display.print("0");
+    }
+    display.print(month());
+    display.print("-");
+    display.println(year());
+    break;
+  }
+  display.display();
+}
+
+// Send data to server
+bool Send(int idx, int nValue, char *sValue)
 {
   HTTPClient http;
   bool retVal = false;
-  char url[255];
+  char httpRequestData[255];
-  sprintf(url, "http://%s:%d/json.htm?type=command&param=udevice&idx=%d&nvalue=%d&svalue=%s", domoticzIP, domoticzPort, idx, nValue, sValue);
+
-  Serial.printf("[HTTP] GET... URL: %s\n",url);
+  // "http://%s:%d/json.htm?type=command&param=udevice&idx=%d&nvalue=%d&svalue=%s"
-  http.begin(url); //HTTP
+  // "api_key=tPmAT5Ab3j7F9&sensor=BME280&value1=24.25&value2=49.54&value3=1005.14"
-  int httpCode = http.GET();
+  sprintf(httpRequestData, "api_key=%s&type=%d&nval=%d&sval=%s", apiKey, idx, nValue, sValue);
+
+  Serial.printf("[HTTP] GET... URL: %s\n", httpRequestData);
+
+  http.begin(String("http://" + String(apiIP) + ":" + String(apiPort))); //HTTP
+  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
+
+  postedTotal++;
+  int httpCode = http.POST(httpRequestData);
   // httpCode will be negative on error
   if (httpCode > 0)
   { // HTTP header has been send and Server response header has been handled
     Serial.printf("[HTTP] GET... code: %d\n", httpCode);
 
     // file found at server
-    if (httpCode == HTTP_CODE_OK) {
+    if (httpCode == HTTP_CODE_OK)
+    {
       String payload = http.getString();
       retVal = true;
     }
   }
   else
   {
+    postedFailed++;
     Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
   }
   http.end();
   return retVal;
 }
 
-
+// Update Gas info
-
 void UpdateGas()
 {
-  //sends over the gas setting to domoticz
   if (prevGAS != mGAS)
   {
     char sValue[10];
     sprintf(sValue, "%d", mGAS);
-    if(SendToDomo(domoticzGasIdx, 0, sValue))
+    if (Send(gasIdx, 0, sValue))
       prevGAS = mGAS;
   }
 }
 
+// Update Electricity info
 void UpdateElectricity()
 {
   char sValue[255];
   sprintf(sValue, "%d;%d;%d;%d;%d;%d", mEVLT, mEVHT, mEOLT, mEOHT, mEAV, mEAT);
-  SendToDomo(domoticzEneryIdx, 0, sValue);
+  Send(energyIdx, 0, sValue);
 }
 
-
+// Check if value is number
-bool isNumber(char* res, int len) {
+bool isNumber(char *res, int len)
-  for (int i = 0; i < len; i++) {
+{
-    if (((res[i] < '0') || (res[i] > '9'))  && (res[i] != '.' && res[i] != 0)) {
+  for (int i = 0; i < len; i++)
+  {
+    if (((res[i] < '0') || (res[i] > '9')) && (res[i] != '.' && res[i] != 0))
+    {
       return false;
     }
   }
   return true;
 }
 
-int FindCharInArrayRev(char array[], char c, int len) {
+// Find char in array
-  for (int i = len - 1; i >= 0; i--) {
+int FindCharInArrayRev(char array[], char c, int len)
-    if (array[i] == c) {
+{
+  for (int i = len - 1; i >= 0; i--)
+  {
+    if (array[i] == c)
+    {
       return i;
     }
   }
   return -1;
 }
 
+// Check if value is valid
 long getValidVal(long valNew, long valOld, long maxDiffer)
 {
   //check if the incoming value is valid
@@ -165,25 +426,35 @@ long getValidVal(long valNew, long valOld, long maxDiffer)
   return valNew;
 }
 
-long getValue(char* buffer, int maxlen) {
+// Get value from char buffer
+long getValue(char *buffer, int maxlen)
+{
   int s = FindCharInArrayRev(buffer, '(', maxlen - 2);
-  if (s < 8) return 0;
+  if (s < 8)
-  if (s > 32) s = 32;
+    return 0;
+  if (s > 32)
+    s = 32;
   int l = FindCharInArrayRev(buffer, '*', maxlen - 2) - s - 1;
-  if (l < 4) return 0;
+  if (l < 4)
-  if (l > 12) return 0;
+    return 0;
+  if (l > 12)
+    return 0;
   char res[16];
   memset(res, 0, sizeof(res));
 
-  if (strncpy(res, buffer + s + 1, l)) {
+  if (strncpy(res, buffer + s + 1, l))
-    if (isNumber(res, l)) {
+  {
+    if (isNumber(res, l))
+    {
       return (1000 * atof(res));
     }
   }
   return 0;
 }
 
-bool decodeTelegram(int len) {
+// Decode P1 telegram
+bool decodeTelegram(int len)
+{
   //need to check for start
   int startChar = FindCharInArrayRev(telegram, '/', len);
   int endChar = FindCharInArrayRev(telegram, '!', len);
@@ -197,8 +468,8 @@ bool decodeTelegram(int len) {
       for (int cnt = startChar; cnt < len - startChar; cnt++)
         Serial.print(telegram[cnt]);
     }
-    //Serial.println("Start found!");
+    Serial.println("Start found!");
-    
+    telegramsTotal++;
   }
   else if (endChar >= 0)
   {
@@ -214,9 +485,14 @@ bool decodeTelegram(int len) {
     }
     validCRCFound = (strtol(messageCRC, NULL, 16) == currentCRC);
     if (validCRCFound)
+    {
       Serial.println("\nVALID CRC FOUND!");
+    }
     else
-      Serial.println("\n===INVALID CRC FOUND!===");
+    {
+      Serial.println("\nINVALID CRC FOUND!");
+      telegramsInvalid++;
+    }
     currentCRC = 0;
   }
   else
@@ -236,25 +512,21 @@ bool decodeTelegram(int len) {
   if (strncmp(telegram, "1-0:1.8.1", strlen("1-0:1.8.1")) == 0)
     mEVLT = getValue(telegram, len);
 
-
   // 1-0:1.8.2(000560.157*kWh)
   // 1-0:1.8.2 = Elektra verbruik hoog tarief (DSMR v4.0)
   if (strncmp(telegram, "1-0:1.8.2", strlen("1-0:1.8.2")) == 0)
     mEVHT = getValue(telegram, len);
 
-
   // 1-0:2.8.1(000348.890*kWh)
   // 1-0:2.8.1 = Elektra opbrengst laag tarief (DSMR v4.0)
   if (strncmp(telegram, "1-0:2.8.1", strlen("1-0:2.8.1")) == 0)
     mEOLT = getValue(telegram, len);
 
-
   // 1-0:2.8.2(000859.885*kWh)
   // 1-0:2.8.2 = Elektra opbrengst hoog tarief (DSMR v4.0)
   if (strncmp(telegram, "1-0:2.8.2", strlen("1-0:2.8.2")) == 0)
     mEOHT = getValue(telegram, len);
 
-
   // 1-0:1.7.0(00.424*kW) Actueel verbruik
   // 1-0:2.7.0(00.000*kW) Actuele teruglevering
   // 1-0:1.7.x = Electricity consumption actual usage (DSMR v4.0)
@@ -264,7 +536,6 @@ bool decodeTelegram(int len) {
   if (strncmp(telegram, "1-0:2.7.0", strlen("1-0:2.7.0")) == 0)
     mEAT = getValue(telegram, len);
 
-
   // 0-1:24.2.1(150531200000S)(00811.923*m3)
   // 0-1:24.2.1 = Gas (DSMR v4.0) on Kaifa MA105 meter
   if (strncmp(telegram, "0-1:24.2.1", strlen("0-1:24.2.1")) == 0)
@@ -273,10 +544,14 @@ bool decodeTelegram(int len) {
   return validCRCFound;
 }
 
-void readTelegram() {
+// Read P1 telegram
-  if (mySerial.available()) {
+void readTelegram()
+{
+  if (mySerial.available())
+  {
     memset(telegram, 0, sizeof(telegram));
-    while (mySerial.available()) {
+    while (mySerial.available())
+    {
       int len = mySerial.readBytesUntil('\n', telegram, MAXLINELENGTH);
       telegram[len] = '\n';
       telegram[len + 1] = 0;
@@ -290,12 +565,18 @@ void readTelegram() {
   }
 }
 
-
+void loop()
-
+{
-void loop() {
+  if (hour() == 0 && minute() == 0 && second() == 0)
-  readTelegram();
+  {
-  ArduinoOTA.handle();
+    reboot();
   }
 
+  readTelegram();
 
+  button.loop();
 
+  t.update();
+
+  ArduinoOTA.handle();
+}

README.md

@@ -1,15 +1,23 @@
+
+
 # P1-Meter-ESP8266
+
+## Original code by [jantenhove on GitHub](https://github.com/jantenhove/P1-Meter-ESP8266), I altered the code to add a screen and make it work with my own server. The original code works with Domoticz, be sure to check it out!
+
 Software for the ESP2866 that sends P1 smart meter data to Domoticz (with CRC checking and OTA firmware updates)
 
 ### Installation instrucions
-- Make sure that your ESP8266 can be flashed from the Arduino environnment: https://github.com/esp8266/Arduino
+
-- Install the SoftSerial library from: https://github.com/plerup/espsoftwareserial
+* Make sure that your ESP8266 can be flashed from the Arduino environnment: https://github.com/esp8266/Arduino
-- Place all files from this repository in a directory. Open the .ino file.
+* Install the SoftSerial library from: https://github.com/plerup/espsoftwareserial
-- Adjust WIFI, Domoticz and debug settings at the top of the file
+* Place all files from this repository in a directory. Open the .ino file.
-- Compile and flash
+* Adjust WIFI, Domoticz and debug settings at the top of the file
+* Compile and flash
 
 ### Connection of the P1 meter to the ESP8266
+
 You need to connect the smart meter with a RJ11 connector. This is the pinout to use
+
 ![RJ11 P1 connetor](http://gejanssen.com/howto/Slimme-meter-uitlezen/RJ11-pinout.png)
 
 Connect GND->GND on ESP, RTS->3.3V on ESP and RxD->any digital pin on ESP. In this sketch I use D5