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Problem with Optional CO2 sensor

Tue, 10 Feb 2026 17:04:30 +0000

Hi.
After a long time and a lot of reading I managed to get the AQM-III working.
But the only problem I have is with the Sensirion SCD30, it worked for 2 reboots then stopped and shows me 0.
I have Arduino IDE 1.8.19 / ESP32 2.0.3 and firmware 6.1_b013.
I would appreciate any help. Is there a chance that the Sensor is broken?

George.

Screenshot_20260210_185831_Chrome.jpg Size: 222,91 KB Downloads: 71

WeatherDuino (Local JSON) – Home Assistant Integration (v0.5.6)

Wed, 28 Jan 2026 06:33:54 +0000

WeatherDuino (Local JSON) – Home Assistant Integration (v0.5.6)
Local-only Home Assistant integration for WeatherDuino devices using the built-in HTTP JSON interface – no cloud, no YAML, UI setup via Config Flow.

Supported devices:
WeatherDuino 4Pro, WeatherDisplay 4Pro, AQM2, AQM3

Features:

Local JSON (/json or / )
Automatic sensor creation
Correct scaling & display precision
CO₂ shown as real ppm (no decimals)
Wind, rain, solar, air quality, soil & external sensors supported

Repository:
👉 https://github.com/Sundancer78/weatherduino-homeassistant

----old
WeatherDuino 4Pro (Local JSON) – Home Assistant Integration
I’ve released a custom Home Assistant integration specifically for the WeatherDuino 4Pro, reading sensor data locally via HTTP JSON – no cloud, no YAML configuration required.

Quote:⚠️ Important:
At the moment, this integration is tested and confirmed to work only with the WeatherDuino 4Pro.
Other WeatherDuino models may require adjustments to the JSON structure and are not yet supported.

🔧 Key Features

Local-only integration via the WeatherDuino 4Pro JSON endpoint ( /json)
Config Flow (UI setup) – just enter IP/hostname
Automatic sensor creation
Clean naming (no WeatherDuino
prefixes in Home Assistant)
Uses the device-reported ID for proper device naming
Supported sensors (depending on your 4Pro configuration):
- Temperature & humidity (indoor / outdoor)
- Barometric pressure
- Wind (speed, gust, direction)
- Rain (rate & total today)
- Solar radiation / UV index
- Air quality (CO₂, PM2.5, PM10, AQI)
- Soil moisture sensors
- Additional external sensors (ES1–ES4)

📊 Dashboard Examples Included

Windrose Card (24h / 4h wind distribution)
ApexCharts for wind, gusts and rain history
Rain Gauge Card for daily rainfall
Mushroom Cards for clean status & quick values

All Lovelace dashboard examples (including full YAML) are documented in the repository.
📦 Installation

Via HACS (Custom Repository) or manual installation
After installation, add the integration via
Settings → Devices & Services → Add Integration

🔗 Repository
👉 https://github.com/Sundancer78/weatherdu...eassistant
Feedback, issues, and pull requests are very welcome — especially from other WeatherDuino 4Pro users 😊

WeatherDuino (Local JSON) – Home Assistant Integration

Wed, 28 Jan 2026 06:23:38 +0000

WeatherDuino (Local JSON) – Home Assistant Integration
I’ve released a custom Home Assistant integration for WeatherDuino that reads sensor data locally via HTTP JSON – no cloud, no YAML configuration required.
🔧 Key Features

Local integration via JSON endpoint (/ json )
Config Flow (UI setup) – just enter IP/hostname
Automatic sensor creation
Clean naming (no “WeatherDuino + IP” prefixes)
Supports a wide range of sensors, including:
- Temperature & humidity (indoor / outdoor)
- Barometric pressure
- Wind (speed, gust, direction)
- Rain (rate & total today)
- Solar radiation / UV
- Air quality (CO₂, PM2.5, PM10, AQI)
- Soil moisture & additional external sensors

📊 Included Dashboard Examples

Windrose Card (24h / 4h wind distribution)
ApexCharts (wind, gusts, rain history)
Rain Gauge Card
Mushroom Cards for quick status & values
All Lovelace YAML examples are documented in the repository.

📦 Installation

Via HACS (Custom Repository) or manual installation
After installation, the integration can be added directly via
Settings → Devices & Services

🔗 Repository
👉 https://github.com/Sundancer78/weatherdu...eassistant
Feedback, issues, and feature requests are very welcome 😊

Load error and system reboot issue

Fri, 09 Jan 2026 04:19:12 +0000

I am getting the following error when the AQ111 initially loads.

E (4070) gpio: gpio_set_level(226): GPIO output gpio_num error

Also, the AQ111 reboots the cpu every second refresh of the PMS7003, refer towards the end of the output from the serial port I have attached. Would appear that the reset is triggered by the load error.

Am using Arduino 1.8.19 and libraries supplied.

Any assistance would be appreciated.

Code:
39:44.603 -> 

39:44.603 -> rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)

39:44.603 -> configsip: 0, SPIWP:0xee

39:44.603 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00

39:44.603 -> mode:DIO, clock div:1

39:44.603 -> load:0x3fff0030,len:1184

39:44.603 -> load:0x40078000,len:12812

39:44.603 -> load:0x40080400,len:3032

39:44.603 -> entry 0x400805e4

39:44.942 -> Brownout detector disabled

39:44.942 ->   WeatherDuino 4Pro

39:44.942 -> Air Quality Monitor III

39:44.942 ->   Firmware: 6.1_b012

39:44.942 -> 

39:48.979 -> E (4070) gpio: gpio_set_level(226): GPIO output gpio_num error

39:48.979 -> 

39:48.979 -> Connecting to zzzzzzzzzzz

39:49.221 -> .......

39:49.846 -> WiFi connected!

39:49.846 -> IP address: 192.168.0.228

39:49.846 -> MDNS responder setup correctly.

39:50.761 -> Get time OK.

39:50.761 -> UTC Time  : 1767931790

39:50.761 -> Local Time: Friday, 09 January 2026 14:39:50

39:50.761 -> Reading Temp, Hum and Pressure

39:50.761 -> Temperature: 31.28

39:50.761 -> Humidity: 38.76

39:50.761 -> Amb. Pressure: 995.09

39:50.761 -> SL Pressure: 1006.65

39:50.761 -> 

39:50.761 -> Setting measurement range to: 5000

39:50.810 -> FF,99,1,0,0,0,0,0,66,

39:50.810 -> 66,66

39:50.810 -> Measurement range changed!

39:53.833 -> Enabling ABC

40:06.871 -> Initial reading: 1

40:07.867 -> 80,30,27,FB,3F,30,36,FC,3F,

40:07.867 -> Calculated crc: D

40:07.867 -> Wrong reply from CO2 sensor!

40:07.867 -> 

40:13.880 -> Initial reading: 2

40:13.880 -> FF,86,1,9A,4B,0,0,0,94,

40:13.880 -> Calculated crc: 94

40:13.880 -> CO2 RAW: 410

40:13.880 -> CO2 Comp: 412

40:13.880 -> Z19 Temp: 35

40:13.880 -> 

40:19.887 -> Initial reading: 3

40:19.936 -> FF,86,1,9A,4B,0,0,0,94,

40:19.936 -> Calculated crc: 94

40:19.936 -> CO2 RAW: 410

40:19.936 -> CO2 Comp: 412

40:19.936 -> Z19 Temp: 35

40:19.936 -> 

40:25.942 -> Initial reading: 4

40:25.942 -> FF,86,1,9A,4B,0,0,0,94,

40:25.942 -> Calculated crc: 94

40:25.942 -> CO2 RAW: 410

40:25.942 -> CO2 Comp: 412

40:25.942 -> Z19 Temp: 35

40:25.942 -> 

40:31.948 -> Initial reading: 5

40:31.948 -> FF,86,1,9A,4B,0,0,0,94,

40:31.948 -> Calculated crc: 94

40:31.948 -> CO2 RAW: 410

40:31.948 -> CO2 Comp: 412

40:31.997 -> Z19 Temp: 35

40:31.997 -> 

40:37.986 -> Initial reading: 6

40:37.986 -> FF,86,1,9A,4B,0,0,0,94,

40:37.986 -> Calculated crc: 94

40:37.986 -> CO2 RAW: 410

40:37.986 -> CO2 Comp: 412

40:37.986 -> Z19 Temp: 35

40:37.986 -> 

40:43.977 -> Initial reading: 7

40:44.024 -> FF,86,1,9A,4B,0,0,0,94,

40:44.024 -> Calculated crc: 94

40:44.024 -> CO2 RAW: 410

40:44.024 -> CO2 Comp: 412

40:44.024 -> Z19 Temp: 35

40:44.024 -> 

40:50.021 -> Initial reading: 8

40:50.021 -> FF,86,1,9A,4B,0,0,0,94,

40:50.021 -> Calculated crc: 94

40:50.021 -> CO2 RAW: 410

40:50.021 -> CO2 Comp: 412

40:50.069 -> Z19 Temp: 35

40:50.069 -> 

40:56.055 -> Initial reading: 9

40:56.055 -> FF,86,1,9A,4B,0,0,0,94,

40:56.055 -> Calculated crc: 94

40:56.055 -> CO2 RAW: 410

40:56.055 -> CO2 Comp: 412

40:56.055 -> Z19 Temp: 35

40:56.055 -> 

41:02.068 -> Initial reading: 10

41:02.068 -> FF,86,1,9A,4B,0,0,0,94,

41:02.068 -> Calculated crc: 94

41:02.116 -> CO2 RAW: 410

41:02.116 -> CO2 Comp: 412

41:02.116 -> Z19 Temp: 35

41:02.116 -> 

41:08.072 -> Initial reading: 11

41:08.119 -> FF,86,1,9A,4B,0,0,0,94,

41:08.119 -> Calculated crc: 94

41:08.119 -> CO2 RAW: 410

41:08.119 -> CO2 Comp: 412

41:08.119 -> Z19 Temp: 35

41:08.119 -> 

41:14.110 -> Initial reading: 12

41:14.157 -> FF,86,1,8F,4B,0,0,0,9F,

41:14.157 -> Calculated crc: 9F

41:14.157 -> CO2 RAW: 399

41:14.157 -> CO2 Comp: 401

41:14.157 -> Z19 Temp: 35

41:14.157 -> 

41:20.118 -> Initial reading: 13

41:20.166 -> FF,86,1,8F,4B,0,0,0,9F,

41:20.166 -> Calculated crc: 9F

41:20.166 -> CO2 RAW: 399

41:20.166 -> CO2 Comp: 401

41:20.166 -> Z19 Temp: 35

41:20.166 -> 

41:26.158 -> Initial reading: 14

41:26.207 -> FF,86,1,8E,4B,0,0,0,A0,

41:26.207 -> Calculated crc: A0

41:26.207 -> CO2 RAW: 398

41:26.207 -> CO2 Comp: 400

41:26.207 -> Z19 Temp: 35

41:26.207 -> 

41:32.203 -> Init MH-Z19 Ended

41:32.203 -> 

41:32.203 -> 

41:32.203 -> Waking up the dust sensor...

41:32.203 -> Reading will be done 40s later.

41:32.203 -> 

42:03.753 -> Reading Temp, Hum and Pressure

42:03.753 -> Temperature: 31.27

42:03.753 -> Humidity: 38.70

42:03.753 -> Amb. Pressure: 995.08

42:03.753 -> SL Pressure: 1006.64

42:03.753 -> 

42:12.180 -> Fan State: 1

42:12.180 -> Reading the dust sensor...

42:12.979 -> PMS7003 valid read: 1

42:12.979 -> 

42:12.979 -> 

PMS7003 readings:

42:12.979 -> PM1.0 : 0.00

42:12.979 -> PM2.5 : 2.99

42:12.979 -> PM10.0: 3.98

42:12.979 -> 

42:13.027 -> FF,86,1,8D,4B,0,0,0,A1,

42:13.027 -> Calculated crc: A1

42:13.027 -> CO2 RAW: 397

42:13.027 -> CO2 Comp: 399

42:13.027 -> Z19 Temp: 35

42:13.027 -> 

42:13.027 -> CO2 1H Avg: 399

42:46.216 -> E (181277) gpio: gpio_set_level(226): GPIO output gpio_num error

42:46.554 -> 

42:46.554 -> abort() was called at PC 0x40085797 on core 1

42:46.554 -> 

42:46.554 -> 

42:46.554 -> Backtrace:0x400842b1:0x3ffbec2c |<-CORRUPTED

42:46.554 -> 

42:46.554 -> 

42:46.554 -> 

42:46.554 -> 

42:46.554 -> ELF file SHA256: 0000000000000000

42:46.554 -> 

42:46.554 -> Rebooting...

42:46.554 -> ets Jul 29 2019 12:21:46

42:46.554 -> 

42:46.554 -> rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)

/code]

Help with Arduino IDE

Mon, 17 Nov 2025 10:42:05 +0000

Hello
I downloaded your firmware for the AQMIII to start work on my current AQMIII but I get the following error :

Code:
Arduino: 1.8.19 (Windows 10), Πλακέτα:"MH ET LIVE ESP32MiniKit, 80MHz, Default with spiffs, 921600, None"

In file included from C:\Users\user\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b012\WeatherDuino_AQM_III_v6.1_b012.ino:39:

Config_Options.h:61:1: error: 'define' does not name a type; did you mean 'rewind'?

 define SDC30_ELEVATION_CALIBRATION_METHOD   1   // 0= Elevation defined above, 1= Atmospheric Pressure from BME280 sensor (overrides ELEVATION)

 ^~~~~~

 rewind

In file included from C:\Users\user\Documents\Arduino\libraries\esp8266-OLED-SSD1306/SH1106Wire.h:31,

                 from C:\Users\user\Documents\Arduino\libraries\esp8266-OLED-SSD1306/SH1106.h:30,

                 from C:\Users\user\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b012\WeatherDuino_AQM_III_v6.1_b012.ino:57:

C:\Users\user\Documents\Arduino\libraries\esp8266-OLED-SSD1306/OLEDDisplay.h: In member function 'virtual bool OLEDDisplay::connect()':

C:\Users\user\Documents\Arduino\libraries\esp8266-OLED-SSD1306/OLEDDisplay.h:253:29: warning: no return statement in function returning non-void [-Wreturn-type]

     virtual bool connect() {};

                             ^

C:\Users\user\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b012\WeatherDuino_AQM_III_v6.1_b012.ino: In function 'void setup()':

WeatherDuino_AQM_III_v6.1_b012:510:12: error: 'SCD30_TemperatureOffset' was not declared in this scope

        if (SCD30_TemperatureOffset != 0)

            ^~~~~~~~~~~~~~~~~~~~~~~

C:\Users\user\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b012\WeatherDuino_AQM_III_v6.1_b012.ino:510:12: note: suggested alternative: 'SCD30_Temperature'

        if (SCD30_TemperatureOffset != 0)

            ^~~~~~~~~~~~~~~~~~~~~~~

            SCD30_Temperature

Βρέθηκαν πολλαπλές βιβλιοθήκες για "WiFi.h"

Σε χρήση: C:\Users\user\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\libraries\WiFi

Όχι σε χρήση: C:\Program Files (x86)\Arduino\libraries\WiFi

exit status 1

'define' does not name a type; did you mean 'rewind'?

Αυτή η αναφορά θα παρείχε περισσότερες πληροφορίες με 

"Εμφάνιση πλεονάζουσα έξοδος κατά τη σύνταξη"

Επιλογή από το Αρχείο -> Προτιμήσεις.

i use it Arduino IDE 1.8.19
Sorry but I have no knowledge at all about IDE .
Any help is welcome .

George.

Firmware Update instructions in case you forgot

Wed, 05 Nov 2025 01:54:57 +0000

I had some trouble to remember how to do the firmware update so I made a small howto for those who tend to forget things and don't work often with Arduino IDE. The instructions below should save you some time and are similar to what I published on the CumulusMX forum (in the Alpha thread).

--------------

If you still have the Arduino IDE (1.8.19) config it is easy: just download the new firmware from the site (look at the date), unzip into the Arduino directory and compile and upload to the board.

If you don't have the config:

Install the IDE 1.8.19
Install the ESP32 board:
- In your Arduino IDE, go to File> Preferences.
- Open the Boards Manager. Go to Tools > Board > Boards Manager…
- Search for ESP32 and press install button for the “ESP32 by Espressif Systems“
- Install version 2.0.3
Move the WeatherDuino_AQM_III directory from the zip to the Arduino directory. It contains a libraries, software and utilities directory
Move the libraries directory from the firmware zip up to the Arduino directory first level
Edit the Config_Options.h and Credentials.h to what you need
Verify and when no errors => Upload

I think that should be it.
Don't even try other versions of the IDE and Board unless you want to experiment.
If werk_ag decides to move to a next IDE version no doubt he will indicate which versions you need and publish the libraries accordingly.

Compile errors

Fri, 31 Oct 2025 12:04:23 +0000

Hi,
I downloaded your firmware for the AQMIII to start work on my current AQMIII to get it fixed for the problem I reported earlier.
I finally managed to get the correct board in place (ESP32 Dev Module) and compiled the code as is after configuration.
I get loads of errors, the short version - all library resolve seems to go OK - is below. I can post the long version as well.

Any suggestion? (IDE version 2.3.6; and no this is not my daily doing so you may be verbose)
Should I update the libs, if so howto without damage?

Code:
Compiling sketch...

"C:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-x32\\2507/bin/xtensa-esp32-elf-g++" -MMD -c "@C:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32-arduino-libs\\idf-release_v5.5-07e9bf49-v1\\esp32/flags/cpp_flags" -Os -Werror=return-type -DF_CPU=240000000L -DARDUINO=10607 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"ESP32_DEV\"" "-DARDUINO_VARIANT=\"esp32\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:esp32:UploadSpeed=921600,CPUFreq=240,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,PSRAM=disabled,LoopCore=1,EventsCore=1,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_RUNNING_CORE=1 -DARDUINO_EVENT_RUNNING_CORE=1 -DARDUINO_USB_CDC_ON_BOOT=0 "@C:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32-arduino-libs\\idf-release_v5.5-07e9bf49-v1\\esp32/flags/defines" "-IC:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\software\\WeatherDuino_AQM_III_v6.1_b010" -iprefix "C:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32-arduino-libs\\idf-release_v5.5-07e9bf49-v1\\esp32/include/" "@C:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32-arduino-libs\\idf-release_v5.5-07e9bf49-v1\\esp32/flags/includes" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32-arduino-libs\\idf-release_v5.5-07e9bf49-v1\\esp32/qio_qspi/include" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\cores\\esp32" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\variants\\esp32" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\EspSoftwareSerial\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\WiFi\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\Network\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\ESPmDNS\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\WebServer\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\FS\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\HTTPClient\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\NetworkClientSecure\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\ArduinoOTA\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\Update\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\SPI\\src" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\Wire\\src" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\RadioHead" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\esp8266-OLED-SSD1306" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\Timer" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\BME280-3.0.0\\src" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\ArduinoJson\\src" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\SPS30-master" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\SparkFun_SCD30_Arduino_Library\\src" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\ThingSpeak\\src" "-Ic:\\Users\\hansr\\Documents\\Arduino\\WeatherDuino_AQM_III\\libraries\\RunningAverage" "-IC:\\Users\\hansr\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.2\\libraries\\Hash\\src" "@C:\\Users\\hansr\\AppData\\Local\\arduino\\sketches\\4180D39E9A8D0EE7A69B2AE0F3C4DF00/build_opt.h" "@C:\\Users\\hansr\\AppData\\Local\\arduino\\sketches\\4180D39E9A8D0EE7A69B2AE0F3C4DF00/file_opts" "C:\\Users\\hansr\\AppData\\Local\\arduino\\sketches\\4180D39E9A8D0EE7A69B2AE0F3C4DF00\\sketch\\WeatherDuino_AQM_III_v6.1_b010.ino.cpp" -o "C:\\Users\\hansr\\AppData\\Local\\arduino\\sketches\\4180D39E9A8D0EE7A69B2AE0F3C4DF00\\sketch\\WeatherDuino_AQM_III_v6.1_b010.ino.cpp.o"

In file included from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\esp8266-OLED-SSD1306/SH1106Wire.h:31,

                 from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\esp8266-OLED-SSD1306/SH1106.h:30,

                 from C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\WeatherDuino_AQM_III_v6.1_b010.ino:57:

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\esp8266-OLED-SSD1306/OLEDDisplay.h: In member function 'virtual bool OLEDDisplay::connect()':

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\esp8266-OLED-SSD1306/OLEDDisplay.h:253:29: error: no return statement in function returning non-void [-Werror=return-type]

  253 |     virtual bool connect() {};

      |                             ^

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino: In function 'void send_PMaverages()':

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino:146:34: warning: 'DynamicJsonDocument' is deprecated: use JsonDocument instead [-Wdeprecated-declarations]

  146 |     DynamicJsonDocument AQ_sensor(420);

      |                                  ^

In file included from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson.hpp:65,

                 from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson.h:9,

                 from C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\WeatherDuino_AQM_III_v6.1_b010.ino:61:

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/compatibility.hpp:125:58: note: declared here

  125 | class ARDUINOJSON_DEPRECATED("use JsonDocument instead") DynamicJsonDocument

      |                                                          ^~~~~~~~~~~~~~~~~~~

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino: In function 'void send_PMdata()':

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino:178:32: warning: 'DynamicJsonDocument' is deprecated: use JsonDocument instead [-Wdeprecated-declarations]

  178 |     DynamicJsonDocument AQMData(280);

      |                                ^

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/compatibility.hpp:125:58: note: declared here

  125 | class ARDUINOJSON_DEPRECATED("use JsonDocument instead") DynamicJsonDocument

      |                                                          ^~~~~~~~~~~~~~~~~~~

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino: In function 'void send_AirLink()':

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino:207:5: warning: 'template class ArduinoJson::V742PB22::StaticJsonDocument' is deprecated: use JsonDocument instead [-Wdeprecated-declarations]

  207 |     StaticJsonDocument<800> airlink;

      |     ^~~~~~~~~~~~~~~~~~

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/compatibility.hpp:63:58: note: declared here

   63 | class ARDUINOJSON_DEPRECATED("use JsonDocument instead") StaticJsonDocument

      |                                                          ^~~~~~~~~~~~~~~~~~

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino:210:49: warning: 'ArduinoJson::V742PB22::JsonObject ArduinoJson::V742PB22::JsonDocument::createNestedObject(TChar*) [with TChar = const char]' is deprecated: use doc[key].to() instead [-Wdeprecated-declarations]

  210 |     JsonObject data = airlink.createNestedObject("data");

      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~

In file included from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson.hpp:42:

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/Document/JsonDocument.hpp:376:14: note: declared here

  376 |   JsonObject createNestedObject(TChar* key) {

      |              ^~~~~~~~~~~~~~~~~~

C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\software\WeatherDuino_AQM_III_v6.1_b010\NET.ino:215:73: warning: 'ArduinoJson::V742PB22::JsonObject ArduinoJson::V742PB22::detail::VariantRefBase::createNestedObject() const [with TDerived = ArduinoJson::V742PB22::detail::MemberProxy]' is deprecated: use add() instead [-Wdeprecated-declarations]

  215 |     JsonObject data_conditions_0 = data["conditions"].createNestedObject();

      |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~

In file included from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/Array/ElementProxy.hpp:7,

                 from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/Array/JsonArray.hpp:7,

                 from c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson.hpp:38:

c:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson\src/ArduinoJson/Variant/VariantRefBase.hpp:233:14: note: declared here

  233 |   JsonObject createNestedObject() const;

      |              ^~~~~~~~~~~~~~~~~~

cc1plus.exe: some warnings being treated as errors

Using library EspSoftwareSerial at version 8.1.0 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\EspSoftwareSerial 

Using library WiFi at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\WiFi 

Using library Networking at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\Network 

Using library ESPmDNS at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\ESPmDNS 

Using library WebServer at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\WebServer 

Using library FS at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\FS 

Using library HTTPClient at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\HTTPClient 

Using library NetworkClientSecure at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\NetworkClientSecure 

Using library ArduinoOTA at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\ArduinoOTA 

Using library Update at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\Update 

Using library SPI at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\SPI 

Using library Wire at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\Wire 

Using library RadioHead at version 1.143.1 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\RadioHead 

Using library ESP8266 and ESP32 Oled Driver for SSD1306 display at version 3.2.7 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\esp8266-OLED-SSD1306 

Using library Timer in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\Timer (legacy)

Using library BME280 at version 3.0.0 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\BME280-3.0.0 

Using library ArduinoJson at version 7.4.2 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ArduinoJson 

Using library sensirion-sps at version 1.0.0 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\SPS30-master 

Using library SparkFun SCD30 Arduino Library at version 1.0.20 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\SparkFun_SCD30_Arduino_Library 

Using library ThingSpeak at version 2.1.1 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\ThingSpeak 

Using library RunningAverage at version 0.4.8 in folder: C:\Users\hansr\Documents\Arduino\WeatherDuino_AQM_III\libraries\RunningAverage 

Using library Hash at version 3.3.2 in folder: C:\Users\hansr\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.2\libraries\Hash 

exit status 1

Compilation error: exit status 1

AirLink response

Thu, 30 Oct 2025 11:58:12 +0000

Hi,

I am running CumulusMX with an AQMIII sensor in an Alpha test setup for version CMX 4.7 (with .NET10 and VS2026). This development setup did not read/register data from my AQMIII (dated 2021 I think). Mcrossley wrote:

"OK, your AirLink issue is tracked down. The now stricter JSON parsing is throwing an error because the JSON being returned does not comply with the Davis specification.

It is the final field "error".

My real AirLink returns ...."error":null
yours returns.... "error":0

The Davis spec says

Quote:The error field is usually null on success, but in the event of an error, will be an object with two fields - code and message.
code is a numeric error code
message is a human readable error message string describing the error.

So error should normally be null or...

Code:
"error":{"code":123,"message":"Error message"}

"

Could you change the firmware to reflect this please?

You can contact Mark on the CMX forum if need be.

Compiling issue

Thu, 16 Oct 2025 14:52:03 +0000

Hello, I'm surely doing something very obviously wrong, but I cannot get the software to compile, I get an error that the libraries are missing. I've updated the location of the files in the IDE preferences (I'm using 1.8.19 on mac Sonoma) to the provided libraries:

/Users/user/Documents/Arduino Projects/Weatherduino/Current software/WeatherDuino_4PRO_DB_v6.3_b004_20240826/libraries

ide library location.png Size: 160,51 KB Downloads: 33

I'm using esp32 board manager 2.0.14

Board Manager.png Size: 48,9 KB Downloads: 33

The error message:

Code:
Multiple libraries were found for "WiFi.h"

 Used: /Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.14/libraries/WiFi

 Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi

WeatherDuino_4PESP32_RX_v6.3_b004:60:10: fatal error: ESP32Ping.h: No such file or directory

 #include             // https://github.com/Maidbot/ESP32Ping - This lib works, others cause problems!!!

          ^~~~~~~~~~~~~

compilation terminated.

exit status 1

ESP32Ping.h: No such file or directory

Arduino: 1.8.19 (Mac OS X), Board: "MH ET LIVE ESP32MiniKit, 80MHz, Default with spiffs, 921600, None, Disabled"

Cannot figure out what I'm doing wrong - I'm surely missing something very obvious! I haven't messed around with the weather station since last year and got a new wifi network so needed to update those credentials, and also upload the latest firmware.

Apologies for the very basic question and thanks in advance for any help,

Zac

3D printable Stevenson Screen

Sun, 21 Sep 2025 05:38:49 +0000

Hi Forks.
I couldn't find a Stevenson screen that looked like a real one, so I had a crack at designing on in Fusion. I'm still a novice designer but thought it turn out really well, especiallt the print in place door. Any feed back appreciated.

Find it here: https://makerworld.com/en/models/1813916...on-sensors

More images and the files at the above link.

4Pro Dual Band Receiver - New firmware

Tue, 05 Aug 2025 23:34:05 +0000

New firmware upgrade for the 4Pro Dual Band Receiver

WeatherDuino_4PESP32_RX_v6.3_b006 - Release date: 2025-08-05

Existing users can download it from here.

New Firmware - 4Pro Wireless Display II

Tue, 05 Aug 2025 23:32:11 +0000

There is a new firmware for the 4Pro Wireless Display II units.

WeatherDuino Wireless Display - v2.0_b003 - Release date: 2025-08-05

Existing users can download it from here.

Display with inverted colors

Tue, 05 Aug 2025 18:53:06 +0000

Units supplied after August 2025 may have a new display type. If after programing your display starts with the colors inverted,
please change on the Config_Options.h (line 529) the defined display type.
By default it remains being Display_Type 1

Looking for Advice on a Reliable Personal Weather Station

Tue, 29 Jul 2025 18:27:49 +0000

Hi everyone,
I'm planning to set up a personal weather station at home to track temperature, humidity, pressure, and wind. I'd appreciate any advice on what equipment to choose.
Here’s what I’m looking for:

Budget: around €200–€500
Accurate sensors, especially for temperature and humidity
Easy setup with Weather Underground or MeteoCercal
Low maintenance (solar or long battery life)
Good outdoor durability

As someone who works in custom plastic fabrication, I’m also curious if anyone here has ever designed or modified enclosures or sensor housings to handle harsh weather better. I’d love to hear how you’ve customized your setup.
Thanks in advance for the tips!

Professional Ultrasound wind sensors.

Sat, 03 May 2025 15:10:03 +0000

Has anyone manged to use the pPro2 TX with a professional ultrasonic wind sensor?
I have a Gill Windsonic unit which can out put both serial in both proprietery and NMEA, as well as 0-5Vdc analog data.
Serial I'm guessing is out so probably have to use analog?
The Analog data for direction is output as 0v for 0 degrees, 2.5v for 180 degrees and 5v for 360 degrees.
Speed is 0-5v with the max at 5v being selectable up to 60 M/s

I was wondering if anyone has ever done this and has code for it, if not I'll have to write if myself

Regards

Bob