Different Arduino IDE versions are stated in the installation guides. This can be confusing.

• Beginner's Guide line 23 (last changed by @Noobilicious) version 1.6.5 is specified. The link given references explicitly the old software releases page.
• ppd42ns-wificonfig-ppd-sds-dht/Readme.md line 40 (last changed by @ricki-z) states that version 1.8.1 is required
• meta/wiki/Firmware-einspielen (last changed by @ricki-z) no version is specified at all

Is it required to use a specific version of Arduino IDE? Otherwise I would like to suggest to soften the specification: In cases where a version is specified, add a statement like

(getestete Version)

In case this change is approved, I volunteer to implement it.

Hi marwe,
the mapping GPIO <-> Pins is defined in Arduino.h (via pins_arduino.h and variants). I.e. you can use D1 to access Pin 1. This saves space for other variables and reduces the size of the compiled binary.

Rajko

https://github.com/cloudzhou/script/blob/master/lua/Upgrader.lua

I think it would be a great addition to the JSON data that is sent in the sensordatavalues to provide also the Sensor ID. If you have multiple sensors you currently have to use URL Parameters or use different endpoints for the different sensors.

line 72 and 73: should be changed to pinMode(xx,INPUT_PULLUP)

activates internal pullup resistor

otherwise input pin can produce random state changes

Tag the stable or near stable sensors firmware to have a better overview.

I have a sensor that currently uses a DHT temp/hum sensor. I would like to upgrade to a BMP180 to also get pressure readings. How do I connect the BMP? Do I need to remove the DHT= Do I need a new Sensor ID for the BMP or will the software use the one of the DHT?

I have the sensor send data to InfluxDB on my Pi and visualize that in Grafana. From today, early afternoon, there are no data points anymore. InfluxDB is up and running just fine, existing data points are still visible in Grafana, just no new ones are coming in.

Judging from the different looking UI there was a software update recently. Is it possible that something broke so data doesn't get send to Influx correctly anymore?

These are some enhancements that will come with the next versions:

• support for InfluxDB as backend
• support for MQTT as backend too many different payload strings and auth methods
• new config page as a more flexible replacement for WiFiManager

Platformio ( http://platformio.org/ ) is a good replacement for Makefiles in embedded development.

Using this setup, you can run integration test builds on CI systems (like Jenkins), set up automated build and deployment chains, and yadda yadda yadda.

Best of it all: your development environment with the Arduino IDE is not impacted in any way, you can continue working how you are used to.

Hi,
where can I modify the firmware so that the sample rate is reduced to e.g. every 5min instead of every minute and thereby increasing the battery life?

Thanks
Jochen

Pin und Sensor sind keine standardisierten HTTP-Header. Sie sollte daher umbenannt werden in X-Pin und X-Sensor. Wofür wird der Pin-Wert überhaupt verwendet?

Find out what part we need to add to tell the other end that we will draw more than 100mA from the USB port.

http://electronics.stackexchange.com/questions/5498/how-to-get-more-than-100ma-from-a-usb-port

intl_de.h forgotten ?

Hallo, gäbe es die Möglichkeit auf noch die MAC-Adresse anzuzeigen. Ich hab in meinem WLAN einen MAC-Filter und es wäre schön wenn man diesen bei der (erst) Konfiguration sehen könnte.

Anosnten biete ich hier noch ein Beispielsketch zum auslesen der MAC-Adresse:

/*
 *  This sketch demonstrates how to scan WiFi networks. 
 *  The API is almost the same as with the WiFi Shield library, 
 *  the most obvious difference being the different file you need to include:
 */
#include "ESP8266WiFi.h"

uint8_t MAC_array[6];
char MAC_char[18];

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

  // Set WiFi to station mode and disconnect from an AP if it was previously connected
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);

  WiFi.macAddress(MAC_array);
  for (int i = 0; i < sizeof(MAC_array); ++i){
      sprintf(MAC_char,"%s%02x:",MAC_char,MAC_array[i]);
    }

  Serial.println(MAC_char);
  Serial.println("Setup done");
}

void loop() { 
}

Just a reminder @ricki-z
ppd42ns-wificonfig-ppd-sds-dht needs to push each sensor separately with pin, see
https://github.com/opendata-stuttgart/sensors-software/blob/master/esp8266-arduino/dht22-wifi/dht22-wifi.ino#L74

String pinstr=String('-');
// [...]
           "Host: " + host + "\r\n" +
           "Pin: " + pinstr + "\r\n" +
           "Content-Type: application/json\r\n" +
// [...]

Einige Sensoren haben regelmäßige, kurze Aussetzer bei der Übertragung der Werte.
Beispiele:
303, 304
1010, 1011
1044, 1045
1517, 1518

Wer auch solche Aussetzer z.B. in den Grafiken hat, bitte kurz melden. Am Besten mit Angaben zum Internetanschluß: Provider, Geschwindigkeit des Ansschlusses, Router-Modell.

This library could help to clean up the code:
https://github.com/kadamski/arduino_sds011/tree/master/lib/Sds011

Your opinion on this?

Hallo,

Ich habe in meiner Sensorbox zusätzlich eine BME280 verbaut und lasse die Daten auch an die opensensemap weiterleiten.

Box: esp8266-1447335

Gegenstelle:
http://opensensemap.org/explore/58fa358b63572200114d6b97

Dabei ist mir aufgefallen dass die Box den Druck in Pascal anzeigt und an die sensemap schickt, die sensemap allerdings mit hPa rechnet.

Tschüß,
Hakan

My sensor (301) reboots frequently. I checked the power and think it's not a power issue. It works fine after a reboot but the Wifi config is lost.

Is there a way to configure the SSID and Wifi password persistently so that I don't have to go through the manual configuration each time?

Is there a script to configure the sensor so that I don't have to go through the manual configuration each time?

Hi!
I want to send the sensor data to my own API on port 443. I'm running an Apache with a proper configured let's encrypt certificate.

The only debug out put via serial is as follows:

## Sending to custom api: 
Start connecting to api.xxxxxxxxxx.com
connection failed

Is there something "special" I need to configure? Is it possible to get a more detailed debug output?

Update 4: 30. Mai 2017
Auf aktuelle Version: NRZ-2017-082 gehoben

Update 3: 17. Mai 2017 21:40
VEML6070 UV-Sensor integriert
Für jeden Sensor kann nun bestimmt werden, ob seine Daten an die APIs gehen.

Hallo,

ich habe den Code um den Luminosity-Sensor TSL2561 und den VEML6070 erweitert und den BME280 so umgebaut, dass zwei davon betrieben werden können.

In den Adafruit Library's habe ich die Objektorientierung entfernt und sie so angepasst, dass durch Übergabe der Sensoradresse die Funktionen direkt aufrufbar sind. Die .cpp und .h ist nun als .ino und .h ins Sketchverzeichnis gewandert. Meine Ergänzungen habe ich etwas schöner gemacht und die aktuellen Änderungen zur Mehrsprachigkeit übernommen.

Vielleicht habt Ihr ja Lust das zu übernehmen.

Grüße Jörg

airrohr-firmware.zip

Hi there,
I have cloned the sensors software from this repository.

I have compiled and flashed the firmware in /esp8266-arduino/ppd42ns-wificonfig-ppd-sds-dht/ successfully for my NodeMCU.

The sensor's WiFi for configuration came up once, as described in http://luftdaten.info/feinstaubsensor-bauen/. I have set the credentials to connect to my own WiFi. As I wanted to take another look at the sensor's "webpage" within the config WiFi (to check for valid sensor data) and I tried to reflash the Arduino sketch.

I cannot find the "Feinstaubsensor-*" SSID again. Is this also covered by "Bitte beachten: Wenn die Konfiguration des Sensors funktioniert hat, ist diese Seite nicht mehr erreichbar", i.e. are the credentials stored in a part of the flash memory not overwritten by the sketch and therefore expected functionality? If not, can you give some hints on how to debug this issue, please?

Cheers,
maehw

The sensors software could publish the data to a central broker using the widely spread http://mqtt.org/.
Some of the advantages over http would be more flexibility, lightweight and reduced code.

Possible brokers:

• https://opensensors.io/
• http://mosquitto.org/

After 10-12h of operation:

Connecting to MQTT broker. Please wait...
DNS retry 1!
DNS retry 2!
DNS retry 3!
DNS retry 4!
DNS Fail!

These sensors stopped working on 1.4.2016:

sensor IDs are:
36, 54, 56, 59, 76, 77, 82

see http://mqtt.opendataset.click/output_plots/plots_sensordata_overview.pdf

Hi,

rein aus Interesse habe ich mir mal den billigeren PPD42NS Sensoren bestellt um die Werte mit denen eines Frenudes zu vergleichen der den teureren SDS011 hat.

Aufgefallen ist, dass der SDS011 die Werte in µg/m³ angiebt, so wie es auch jede öffentliche Feinstaubmesstation macht. Der PPD42NS zeigt die Werte jedoch in #Partikel/Liter an. Damit kann man leider nicht wirklich was anfangen. Eine kurze Googlesuche hat gezeigt dass man die Werte eigentlich ineinander umrechnen kann.

Gibt es einen Grund wieso das aktuell in der Software nicht gemacht wird? Weil in dieser Einheit sind die Werte halt ziemlich Nutzlos mMn.
Falls nein, würd ich mich die Tage mal hinsetzen und versuchen das reinzubauen und einen PR basteln.

Viele Grüße,
Felix

For mobile sensors, there should be a GPS position included with the data.
In that case, GPS lat lon alt PDOP fixtype, maybe RMS info (azimuth, speed) and GPS time might be of interest. All these values are measurement values (define a sensor accordingly).

Possible approaches:

• the GPS sends messages in parallel (e.g. push lat lon with same nodeID), maybe the easiest/most flexible way (nodeID needs to be configurable).
  • generally no direct sync between measurements, needs to be handled by analysis
• The GPS position is directly parsed by node (connect to serial, parse NMEA messages, at least RMC/GGA messages)
  • regularly handle serial (certain interrupt intervals?), assemble messages, check CRC, tokenize
  • see https://github.com/adafruit/Adafruit-GPS-Library/ http://arduiniana.org/libraries/tinygpsplus/
  • needs some CPU cycles/interrupts
• the GPS position can be received by node via network (e.g. from a gpsd) and be added/sent

Hardware:

• https://www.sparkfun.com/pages/GPS_Guide
• https://www.adafruit.com/products/746
• NEO-6M Ublox http://www.instructables.com/id/Arduino-Ublox-GPS/
• http://www.mr-lee-catcam.de/pe_cc_i6.htm

Since the project has attracted good attention and there are multiple sensors outside of Germany I think it is important to capture the time zone of the actual sensor location.
This should be a setting in the sensor software.

This is the sensors and components wish list:

- [x] MQ2 (limited lifetime, comsumes too much power, needs calibration)
- [x] MQ135 (limited lifetime, comsumes too much power needs calibration)

• BMP280 (temp., humidity, pressure)
• Plantower PMS1003, PMS3003, PMS7003 (PM10, PM2.5, PM1)
• Plantower PMS5003, PMS6003 (PM10, PM2.5, PM1)
• BME680 (temp., humidity, pressure, VOC)
• DS18B20 (temp.)
• TSL45315 (light)
• VEML6070 (uv)
• LCD 1602/1604

aktuelle Version von ArduinoJson (5.8.2) funktioniert nicht mit Projekt, die 5.7.3 geht, die 5.8.1 compiliert auch.

5.8.2 Fehlermeldungen:

Build-Optionen wurden verändert, alles wird neu kompiliert
C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino: In function 'String create_influxdb_string(const String&)':

C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino:1401:88: warning: 'const char* ArduinoJson::JsonVariantBase::asString() const [with TImpl = ArduinoJson::JsonObjectSubscript<const char*>]' is deprecated (declared at C:\Users\andreas\Documents\Arduino\libraries\ArduinoJson/include/ArduinoJson/Deserialization/../JsonVariantBase.hpp:36): use as<char*>() instead [-Wdeprecated-declarations]

tmp_str = jsonBuffer.strdup(json2data["sensordatavalues"][i]["value_type"].asString());

                                                                                    ^

C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino:1403:83: warning: 'const char* ArduinoJson::JsonVariantBase::asString() const [with TImpl = ArduinoJson::JsonObjectSubscript<const char*>]' is deprecated (declared at C:\Users\andreas\Documents\Arduino\libraries\ArduinoJson/include/ArduinoJson/Deserialization/../JsonVariantBase.hpp:36): use as<char*>() instead [-Wdeprecated-declarations]

tmp_str = jsonBuffer.strdup(json2data["sensordatavalues"][i]["value"].asString());

                                                                               ^

C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino: In function 'void send_csv(const String&)':

C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino:1431:88: warning: 'const char* ArduinoJson::JsonVariantBase::asString() const [with TImpl = ArduinoJson::JsonObjectSubscript<const char*>]' is deprecated (declared at C:\Users\andreas\Documents\Arduino\libraries\ArduinoJson/include/ArduinoJson/Deserialization/../JsonVariantBase.hpp:36): use as<char*>() instead [-Wdeprecated-declarations]

tmp_str = jsonBuffer.strdup(json2data["sensordatavalues"][i]["value_type"].asString());

                                                                                    ^

C:\Users\andreas\Documents\GitHub\sensors-software\esp8266-arduino\ppd42ns-wificonfig-ppd-sds-dht\ppd42ns-wificonfig-ppd-sds-dht.ino:1433:83: warning: 'const char* ArduinoJson::JsonVariantBase::asString() const [with TImpl = ArduinoJson::JsonObjectSubscript<const char*>]' is deprecated (declared at C:\Users\andreas\Documents\Arduino\libraries\ArduinoJson/include/ArduinoJson/Deserialization/../JsonVariantBase.hpp:36): use as<char*>() instead [-Wdeprecated-declarations]

tmp_str = jsonBuffer.strdup(json2data["sensordatavalues"][i]["value"].asString());

Kann ich die Daten mehrere Sensoren (z.B. SDS011 und BME280) in einem Request an api.luftdaten.info übertragen? TLS-Handshakes sind ziemlich teuer - das macht sich auch auf eurem Server bemerkbar.

Beispiel:

{
  "software_version": "NRZ-2016-054",
  "sensordatavalues": [
    {
      "value_type": "P1",
      "value": "11.25"
    },
    {
      "value_type": "P2",
      "value": "10.12"
    },
    {
      "value_type": "temperature",
      "value": "22.70"
    },
    {
      "value_type": "humidity",
      "value": "34.57"
    },
    {
      "value_type": "pressure",
      "value": "103294.48"
    }
  ]
}

Hallo,
ich hab Version #define SOFTWARE_VERSION "NRZ-2016-048"
in der readme steht was von:

Bis Version NRZ-2016-15:
DHT https://github.com/adafruit/DHT-sensor-library
(DHT.cpp und DHT.h downloaden und in das Softwareverzeichnis kopieren)
ist damit die "NRZ-2016-015" gemeint? (die dht brauchte ich jedenfalls nicht)

h = dht.readHumidity(); //Read Humidity  
t = dht.readTemperature(); //Read Temperature

and connecting to 5V (Vin) instead of 3,3V

solved the issue for me!

Using DHT Sensor Library by Adafruit Version 1.3.0

According to the esp8266 documentation, "endless" loops without delays can break wlan functionality.

Are the any changes in measurement if we include a yield() (euivalent to delay(0)) at the end of loop(). This will give the cpu a chance to work on interrupts and to reconnect on wlan errors.

Hi,
after adding all recommended libraries, compilation ended up with:
"Adafruit_Sensor.h: No such file or directory"
After adding "Adafruit Unified Sensor", compilation went through without errors.

Kind regards and a happy new year ;-)
Jo

Hallo, im Wiring-pdf ist VUSB mit 2,5µ statt 5V vom Feinstaubsensor (SDS011) verbunden - ist das korrekt? In der Textlichen Beschreibung ist er hingegen auf 5V gelegt und der 2,5µ nicht benutzt (halte ich für richtiger)!
(https://github.com/opendata-stuttgart/sensors-software/tree/master/esp8266-arduino/ppd42ns-wificonfig-ppd-sds-dht)

The sensor interface does not show what date/version the firmware is.

It would be good to have a build date shown in the interface.

Hi,
Do you have any plans for multi-language web interface of ESP?

I know that I can fork repo, but it is not very useful to keep it in sync with master only for translation.
I hope you will choose some technology for multi-language strings in sources.
If you are agree that it must be done and give some ideas, I can take some work to implement it.

Best regards

I am referring to this line. Is there any reason the path is restricted to 50 characters?

in der "ppd42ns-wificonfig-ppd-sds-dht.ino" wird diese Zeile (1898) angemosert.

#if defined(ESP8266)
	Wire.pins(D3,D4);					// must be set before all other I2C cmds

Soweit meine Recherche ist ein Wire.pins(D3,D4); nicht mehr nötig, das macht ja das Wire.begin(D3,D4); was dahinter kommt.
Wenn ich es auskommentiere compiliert es ohne Meldungen.

Es sollte möglich sein, bei der Konfiguration die GPS-Koordinaten einzugeben, damit diese zusammen mit den Messwerten übertragen werden. Ähnliches machen z.B. die Freifunker in ihrer Gluon-Software.

Das vereinfacht bei euch ebenso die Verwaltung der Positionen von Sensoren.

Just leaving this here as a reminder, because I was too stupid to address it to the correct repo at the first approach.

opendata-stuttgart/feinstaub-map#22

@ricki-z already gave me the hint, that this will be changed in the future to maxlenght=64. (This is the maximum length for WPA2 passwords).

My initial issue reads:

Unfortunately it is not possible to enter WiFi passwords with more than 32 characters in the config form >provided with the latest firmware binary:

https://github.com/opendata-stuttgart/sensors-software/blob/master/esp8266-arduino/ppd42ns-wificonfig-ppd-sds-dht/ppd42ns-wificonfig-ppd-sds-dht.ino.nodemcu.bin

maxlength= "32"

<input name="wlanpwd" id="wlanpwd" placeholder="Passwort" >value="IWouldLikeToEnterALongPasswordHe" maxlength="32" type="password">

The ESP will freeze (Firmware Version: NRZ-2016-062) if the values http page was updated (refresh button at the browser) while the firmware is communicating with the SDS011 sensor (led on the sensor flashing).
If this occurs, the ESP is was completely dead, no more http communication, no ping possible (timeout) EDIT: I am not sure anymore about the ping, but http communication was definite down.
If the web pages are not used, the ESP works like a charm.

The Freeze will then occur exactly after the communication with the SDS011 ends.

Last log lines at log level 5 are at every freeze:
...
End connecting to api.luftdaten.info

Sending to luftdaten.info (DHT):

Start connecting to api.luftdaten.info
Requesting URL: /v1/push-sensor-data/
1197671
{"software_version": "NRZ-2016-062", "sensordatavalues":[{"value_type":"temperature","value":"22.10"},{"value_type":"humidity","value":"35.60"}]}

From @h0lz on April 2, 2017 11:15

Hi,
Opensensmap.org accepts light sensors like the TSL45315 and UV sensors like the VEML6070.
Both connect via i2c.
I would like to submit theese data as well.
Would it be possible to add the function in the firmware?
I've ordered a bmp180 already to submit the barometric pressure to Opensensemap as well.

Copied from original issue: opendata-stuttgart/feinstaub-map#30

ist auch bei der Installation von nöten (sorry hab die readme editiert)

Add location (machine readable e.g latlong) to each of the sensors, so that the air quality can be compared in different city regions. The info can be stored at the API too and can be added even after the sensor is in production.

Keep in mind that we have to protect the sensor host's privacy and not reveal the exact location, or obfuscate it some other way.

Opensensors is a convenient and free way to make the particle data open/public.
The account holder can publish to a topic, topics can be public or private, a public topic can be used by anyone.

Usage in the CLI:

mosquitto_pub -h mqtt.opensensors.io -i <client_id> -t <topic> -u <dusty> -m 'measure and timestamp' -P <your password> 

Use cases:

1. Sensors publish directly to opensensors (permissions must be reviewed)
2. Only dusty publishes to opensensors

Public topic example:
https://opensensors.io/topics/orgs/London-Air-Quality-Network/westminster/westminster-oxford-street

platformio with standard espressif8266 compiles with error '.pioenvs/nodemcuv2_bg/firmware.elf section .text' will not fit in region iram1_0_seg'
with espressif8266_stage compile is okay, but SPIFFS is not read. Saved config isn't found and connect to internal webserver is not possible.

WifiConfig doesn't save the configured state of custom api.