With ESP8266 send data to fhem

[Porky666]

Go Robin go.

Und dann alles in dein meintechblog.de.
Großartig diese Seite.

Gruß Stefan

[fh168]

i will test this. i have a dth here, but not today.

[fh168]

@stefan, no i will write a short statement my own blog.
But the interesting part of the 8266 is the sleep mode, because at the moment i takes too much current.

Robin

[kroonen]

Yes we must now look at deep sleep, but I think it's not easy on an esp-01. I think needed is the esp8266-12 for that.

Goal: dht22 with deep sleep fully battery powered push data to fhem every 1 minutes.

[fh168]

Hello kroonen,

i used your code in my blog with a few modifications. I hope its okay.

http://blog.moneybag.de/fhem-temperaturmessung-mit-dem-esp-8266-und-ds18b20-ohne-arduino-datenuebertragung-per-wlan/

@Stefan. Du kannst den Beitrag abschreiben und bei dir im blog setzen.

LG
/robin

[kroonen]

No problem, mostly I also copied from others.

Let me know if it is up for a week or so, to see how stable it is.

regards Richard

[Porky666]

Hi,
The Site meintechblog.de is not mine,
This Site belongs to another User from FhemForum.

Thx
Stefan

[kroonen]

Hi,

I'm also busy with the dht22, but the temp and humidity are not stable, any ideas are welcome. I used a dht22 with resistor 4.7k and without, and also tried this schema

http://www.esp8266.com/viewtopic.php?f=19&t=1363

output in log file

2015-03-09_13:16:31 Testtemp T: 21.9 H: 42.2
2015-03-09_13:17:01 Testtemp T: 24.3 H: 44.2
2015-03-09_13:17:31 Testtemp T: 21.3 H: 43.7
2015-03-09_13:18:01 Testtemp T: 21 H: 45
2015-03-09_13:18:31 Testtemp T: 20.8 H: 45
2015-03-09_13:19:01 Testtemp T: 20.6 H: 45.5
2015-03-09_13:19:31 Testtemp T: 20.4 H: 45.8
2015-03-09_13:20:01 Testtemp T: 20.4 H: 46.2
2015-03-09_13:20:31 Testtemp T: 20.3 H: 46.6
2015-03-09_13:21:01 Testtemp T: 20.2 H: 46.8
2015-03-09_13:21:31 Testtemp T: 20.7 H: 47.4
2015-03-09_13:22:01 Testtemp T: 20 H: 47.1
2015-03-09_13:22:31 Testtemp T: 20 H: 47.4
2015-03-09_13:23:01 Testtemp T: 19.9 H: 47.5
2015-03-09_13:23:31 Testtemp T: 20.7 H: 48.1
2015-03-09_13:24:01 Testtemp T: 20 H: 48.1
2015-03-09_13:24:31 Testtemp T: 19.8 H: 47.8
2015-03-09_13:25:01 Testtemp T: 21 H: 49.2
2015-03-09_13:25:31 Testtemp T: 19.8 H: 47.9
2015-03-09_13:26:01 Testtemp T: 20.7 H: 48.5


using this config

laster dht22.lua from node mcu , the init.la like above for ds18b20

https://github.com/nodemcu/nodemcu-firmware/tree/master/lua_modules/dht22

and fhem.lua

tmr.alarm(0,30000, 1, function()
PIN = 4 --  data pin, GPIO2

dht22 = require("dht22")
dht22.read(PIN)
t = dht22.getTemperature()
h = dht22.getHumidity()
humi=dht22.getHumidity()/10
temp=dht22.getTemperature()/10
if h == nil then
  print("Error reading from DHT22")
else
  -- temperature in degrees Celsius  and Farenheit
  -- floating point and integer version:
  print("Temperature: "..((t-(t % 10)) / 10).."."..(t % 10).." deg C")
  -- only integer version:
  print("Temperature: "..(9 * t / 50 + 32).."."..(9 * t / 5 % 10).." deg F")
  -- only float point version:
  print("Temperature: "..(9 * t / 50 + 32).." deg F")

  -- humidity
  -- floating point and integer version
  print("Humidity: "..((h - (h % 10)) / 10).."."..(h % 10).."%")
end

-- release module
dht22 = nil
package.loaded["dht22"]=nil


conn=net.createConnection(net.TCP, 0)
conn:on("receive", function(conn, payload) print(payload) end )
conn:connect(8083,"192.168.180.5")
conn:send('GET /fhem?cmd=setreading%20Testtemp%20state%20T:%20' ..temp.. '%20H:%20'..humi..'\r\n HTTP/1.1\r\nHost: www.local.lan\r\n".."Connection: keep-alive\r\nAccept: */*\r\n\r\n"')
end)

[kroonen]

Got it stable. The dht22 must be connected to the 5v , than it works

2015-03-09_14:29:04 Testtemp T: 19.6 H: 48.5
2015-03-09_14:29:34 Testtemp T: 19.6 H: 48.4
2015-03-09_14:33:04 Testtemp T: 19.6 H: 48.3
2015-03-09_14:33:34 Testtemp T: 19.6 H: 48.4
2015-03-09_14:34:04 Testtemp T: 19.6 H: 48.3
2015-03-09_14:34:34 Testtemp T: 19.7 H: 48.5
2015-03-09_14:35:04 Testtemp T: 19.6 H: 48.4
2015-03-09_14:35:34 Testtemp T: 19.6 H: 48.3
2015-03-09_14:37:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:37:34 Testtemp T: 19.6 H: 48.3
2015-03-09_14:38:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:39:04 Testtemp T: 19.6 H: 48.3
2015-03-09_14:39:34 Testtemp T: 19.7 H: 48.4
2015-03-09_14:40:04 Testtemp T: 19.6 H: 48.3
2015-03-09_14:41:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:41:34 Testtemp T: 19.6 H: 48.3
2015-03-09_14:42:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:46:34 Testtemp T: 19.7 H: 48.3
2015-03-09_14:47:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:47:34 Testtemp T: 19.7 H: 48.3
2015-03-09_14:48:04 Testtemp T: 19.7 H: 48.4
2015-03-09_14:48:34 Testtemp T: 19.7 H: 48.2
2015-03-09_14:49:04 Testtemp T: 19.7 H: 48.3
2015-03-09_14:49:34 Testtemp T: 19.7 H: 48
2015-03-09_14:50:04 Testtemp T: 19.7 H: 48.2

[fh168]

thank you kroonen, i will give it a try

Robin

[chanky]

Nice work guys With your help i've got my ESP8266-201 running. I used arduino to program the ESP8266 instead of lua, and interfacing to the fhem i used your solution. Hat off to Kroonen many thanks.

[kroonen]

@Chunky,

Can you also post the arduino code. It's based on de arduino ide?

regards Richard

[chanky]

Yes of course:

Code Auswählen Erweitern

#include <OneWire.h>
#include <ESP8266WiFi.h>

// OneWire DS18S20, DS18B20, DS1822 Temperature Example
//
// http://www.pjrc.com/teensy/td_libs_OneWire.html
//
// The DallasTemperature library can do all this work for you!
// http://milesburton.com/Dallas_Temperature_Control_Library

OneWire  ds(0);  // on pin 2 (a 4.7K resistor is necessary)

const char* ssid     = "XX-XXXXXX";
const char* password = "XXXXXXXXXXXXXXX";
const char* host     = "10.0.0.15";

void setup(void) {
  Serial.begin(115200);
    delay(10);

  // We start by connecting to a WiFi network

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
 
  WiFi.begin(ssid, password);
 
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected"); 
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}
int value = 0;

void loop(void) {
  byte i;
  byte present = 0;
  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius, fahrenheit;
 
  if ( !ds.search(addr)) {
    Serial.println("No more addresses.");
    Serial.println();
    ds.reset_search();
    delay(250);
    return;
  }
 
  Serial.print("ROM =");
  for( i = 0; i < 8; i++) {
    Serial.write(' ');
    Serial.print(addr[i], HEX);
  }

  if (OneWire::crc8(addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return;
  }
  Serial.println();

  // the first ROM byte indicates which chip
  switch (addr[0]) {
    case 0x10:
      Serial.println("  Chip = DS18S20");  // or old DS1820
      type_s = 1;
      break;
    case 0x28:
      Serial.println("  Chip = DS18B20");
      type_s = 0;
      break;
    case 0x22:
      Serial.println("  Chip = DS1822");
      type_s = 0;
      break;
    default:
      Serial.println("Device is not a DS18x20 family device.");
      return;
  }

  ds.reset();
  ds.select(addr);
  ds.write(0x44, 1);        // start conversion, with parasite power on at the end
 
  delay(60000);     // 1 Minute delay
 
  present = ds.reset();
  ds.select(addr);   
  ds.write(0xBE);         // Read Scratchpad

  Serial.print("  Data = ");
  Serial.print(present, HEX);
  Serial.print(" ");
  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read();
    Serial.print(data[i], HEX);
    Serial.print(" ");
  }
  Serial.print(" CRC=");
  Serial.print(OneWire::crc8(data, 8), HEX);
  Serial.println();

  // Convert the data to actual temperature
  // because the result is a 16 bit signed integer, it should
  // be stored to an "int16_t" type, which is always 16 bits
  // even when compiled on a 32 bit processor.
  int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; // 9 bit resolution default
    if (data[7] == 0x10) {
      // "count remain" gives full 12 bit resolution
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    // at lower res, the low bits are undefined, so let's zero them
    if (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 ms
    else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms
    else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms
    //// default is 12 bit resolution, 750 ms conversion time
  }
  celsius = (float)raw / 16.0;
  fahrenheit = celsius * 1.8 + 32.0;
  Serial.print("  Temperature = ");
  Serial.print(celsius);
  Serial.print(" Celsius, ");
  Serial.print(fahrenheit);
  Serial.println(" Fahrenheit");
  Serial.print("connecting to ");
  Serial.println(host);
 
  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 8083;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }
 
  // We now create a URI for the request
  String url = "/fhem?cmd=setreading%20esp8266temp%20state%20";
  Serial.print("Requesting URL: ");
  Serial.println(url);
 
  // This will send the request to the server
  client.print(String("GET ") + url + celsius + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Authorization: Basic Rsdfsfdsno6MDYwMg==\r\n" +
               "Connection: keep-alive\r\n" +
               "Accept: */*\r\n\r\n");
  delay(10);
 
  // Read all the lines of the reply from server and print them to Serial
  while(client.available()){
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
 
  Serial.println();
  Serial.println("closing connection");
}



It's chanky btw

[cs-online]

Hello,

is there a way to use Telnet-port 7270 with user and Password ?

Greetings Christian

[JoWiemann]

Have a look here: https://forum.fhem.de/index.php?topic=55728



Grüße Jörg

Gesendet von iPad mit Tapatalk