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Using the gauge widget works good, and the current value shows up below the gauge. But I've seen articles where the value is shown inside the gauge, not below it. It that possible to do? If so, how?

I do really like the ability of applying colors to ranges of the gauge's values. I'm plotting Air Quality AQI numbers and this works really well for that.

Thanks,

Rick

I am a new user to ThingSpeak. Generally things are going well. I've been able to create channels and use widgets. I am embedding charts into my own web site (using Google Sites) and that is working fine.

My question has to do with labels that I put on the charts in the 'public view'. I can change the title and the X and Y axis text and this shows up as I want. But when I click on the 'export URL' button and a new tab opens up with the chart, the title and X & Y labels are not what I put in (and yes, I did 'save' after changing them). Is this a bug, or is there some other thing I need to do here?

Thanks,

Rick

Im posting data every 10 minutes to this field as you can see, yet when i pull the data back down there are 2 timestamps in between each post with 'nothing' in them which in tern screws up any matlab script trying to average the data. Why is this happening? thanks see below

created_at,entry_id,field2
2021-08-21 09:54:27 -0600,38811,5.416666666666667
2021-08-21 09:57:02 -0600,38812,
2021-08-21 10:03:59 -0600,38813,
2021-08-21 10:04:27 -0600,38814,5.0
2021-08-21 10:07:02 -0600,38815,
2021-08-21 10:13:59 -0600,38816,
2021-08-21 10:14:28 -0600,38817,5.0
2021-08-21 10:17:03 -0600,38818,
2021-08-21 10:23:59 -0600,38819,
2021-08-21 10:24:28 -0600,38820,5.416666666666667
2021-08-21 10:27:03 -0600,38821,
2021-08-21 10:34:00 -0600,38822,
2021-08-21 10:34:29 -0600,38823,8.333333333333334
2021-08-21 10:37:04 -0600,38824,
2021-08-21 10:44:00 -0600,38825,
2021-08-21 10:44:29 -0600,38826,6.25
2021-08-21 10:47:09 -0600,38827,
2021-08-21 10:54:01 -0600,38828,
2021-08-21 10:54:30 -0600,38829,6.666666666666667
2021-08-21 10:57:10 -0600,38830,
2021-08-21 11:04:01 -0600,38831,
2021-08-21 11:04:34 -0600,38832,7.083333333333334
2021-08-21 11:07:10 -0600,38833,
2021-08-21 11:14:01 -0600,38834,
2021-08-21 11:14:35 -0600,38835,9.583333333333334
2021-08-21 11:17:11 -0600,38836,
2021-08-21 11:24:02 -0600,38837,
2021-08-21 11:24:35 -0600,38838,7.083333333333334

The ThingSpeak Communication Library for Arduino, ESP8266 and ESP32 enables an Arduino or other compatible hardware to write or read data to or from ThingSpeak, an open data platform for the Internet of Things with MATLAB analytics and visualization.

Link: https://github.com/mathworks/thingspeak-arduino

Installation: In the Arduino IDE, choose Sketch/Include Library/Manage Libraries. Click the ThingSpeak Library from the list, and click the Install button.

Compatible Hardware:

  • Arduino/Genuino or compatible using a WiFi Shield
  • Arduino/Genuino or compatible using a WiFi Shield 101 (Use the WiFi101 library version 0.13.0 or older.)
  • Arduino/Genuino or compatible using an Ethernet Shield
  • Arduino/Genuino or compatible using a MKR ETH Shield
  • Arduino MKR1000
  • Arduino MKR1010
  • Arduino VIDOR 4000
  • Arduino GSM 14000
  • Arduino Uno WiFi Rev2
  • Arduino Yún (Rev1 and Rev2)
  • ESP8266 programming directly (tested with SparkFun ESP8266 Thing - Dev Board and NodeMCU 1.0 module)
  • ESP8266 via AT commands
  • ESP32 (tested with SparkFun ESP32 Thing)

Tutorial: https://nothans.com/thingspeak-tutorials/arduino/send-data-to-thingspeak-with-arduino

SHUAI TAN
SHUAI TAN
Last activity on 16 Aug 2021

MatLab license=? ThingSpeak license

Hi I got MatLab license for thingspeak. But I am not sure this MatLab is also valid for thingspeak or not? Do i need to buy add-on license for thingspeak?

Gord Pinard
Gord Pinard
Last activity on 13 Aug 2021

NEWBIE requesting some basic help.

Hello, I was asked to help on a local community project to study Air Quality. I have two monitoring stations via PurpleAir. I can see data/ weekly graphs from both these stations. It appears that PurpleAir only holds/displays data for 1 week and it was suggested that ThingSpeak would [a]store historical data [b]able to "graph for longer periods of time". Is this true? Second question. It was only last week that I have heard of PurpleAir and ThingSpeak... is it possible for a Newbie to setup ThingSpeak to be able to visualize the AQI from my two monitors?

Hello, i use thingspeak to visualize data, when i use the chart, it works well, when i use numeric display, it show NaN.

How can i fix it?

The mouse pointer can't convert into cross cursor when I attempted to open an image processing window so that I can't draw a line on the image.

I recently found some interesting hardware in a demo on Hackster. The Magicbit is an ESP32-based project platform. It includes some plug and play sensors and a built-in display on a brightly colored PCB. The demo shows how to send the data collected by the Magicbit to ThingSpeak. You can see how to use the Arduino IDE to program the device, using the ThingSpeak library for Arduino, ESP 8266, and ESP32 . Of course, once you get the data into ThingSpeak, you can use the integrated MATLAB to do just about anything with the data. The Magicbit is funded from a Kickstarter campaign .

Hi all,

I have created 2 fields in thingspeak, one which displays all datapoints and one which shows the daily average. In the thingview app, both graphs show all datapoints, not the average.

Claudio Buie
Claudio Buie
Last activity on 6 Sep 2021

Testing APPS - TalkBack

Hello,

Opening TalkBack in Firefox and trying to Add a new command, the green button doing nothing. If I refresh the page, it works fine. First time have a issue - not work... Edge is working from the first time.

Buenas tardes. A ver tengo un problema que no se cómo solucionar. Tengo una estación méteo (Arduino) conectada a ThingSpeak y lo cierto es que funciona perfectamente, pero en los gráficos, tanto en el canal privado cómo en el público, me aparecen varias lecturas en una sola hora:

Como se puede observar, es muy mala cosa que en una sola hora aparezcan cuatro datos, algunas veces muy diferentes, ya que en una hora los valores reales pueden cambiar, con lo cual, no puedo hacerme una idea delas variaciones en 60 minutos. Esto ocurre con los datos de temperatura, humedad, presión y resto de gráficos.

Lo que quisiera conseguir, és que solo apareciera un solo dato por cada hora, durante las 24h del día. Es posible que únicamente imprima un punto y un dato a una sola hora en el gráfico? Cómo lo hago? Donde trasteo? Y con qué parámetros?

Agradeceré cualquier ayuda que me permita solucionar este tema.

Gracias por la atención y la ayuda.

Salu2 cordiales.

Haydar Jawad
Haydar Jawad
Last activity on 2 Nov 2023

MQTT API is not in my profile

Hi, i wonder if any one experiencing the same, but in my thing sepak profiel i can only see : 1- User API Key 2- Alert API Key

but no MQTT API key? not sure why Thank you

Hi,

I get 200 after a Python post to a channel like this from my Python script:

Ambient light: 13.3 lux Mass is 943.6 g 10:37 that is today, 7/24/2021 Pacific time <Response [200]

Yet the data is not showing up in the widget after 03:07 today and when I export the data it agrees with that:

2021-07-24 02:57:17 MDT 4123 947.4597598 0.833333333

2021-07-24 03:07:18 MDT 4124 947.5867868 0.833333333

here is a code snippet: note it posts every 10 minutes

-----------

request_headers = {'Content-Type':'application/json'}
          try:
             response = requests.post('http://api.thingspeak.com/update?api_key=' + API_KEY,
             json=planta_json, headers=request_headers)
             print(response)
          except:
             print("did not post for some reason")

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

i never get a "did not post for some reason" debug message from the Python script. its like the data just disappears for some reason.

is there something else in the response i should look at to see why this happens? it will work fine for days then do this.

thanks

I have Thingspeak MATLAB visualizations that I call using https://thingspeak.com/apps/matlab_visualizations/nnnnn?width=800&height=700 (where nnnnn is the visualization number). In the MATLAB code, is it possible to determine the width and height parameters that were sent, in this case 800 and 700?

Thanks! Tom

Hello Thingspeak supporter,

I see that the pleaform had updated the MQTT device feature. But I get the issue related to subscribe channel, please check my descripton below:

A Thingspeak device is added with permission of publish and subscribe to a channel. But when starting subscribe, the server disconnected MQTT connection to the device. I'm using MQTTbox tool for testing.

  • MQTT setting ID, username and password (As thingspeak device info)
  • Connect and publish OK
  • MQTT is disconnected when starting subscibe

This issue doesn't appear when I use my old thingpseak account (before adding MQTT device feadure).

Please help me to check. Thank you!

For example, I can send my latest Thingspeak data to firebase platform? Or I can update my Thingspeak field data from Firebase?

Martin Lorenzo
Martin Lorenzo
Last activity on 12 Jul 2021

¿Wrong messages usage?

Hello. First of all sorry for my English. I was checking that my daily message usage is about 1400/1500 and suddenly yesterday climbed to 13000. Any thoughts? Thanks in advance. Martín.-

generateFunction() failed in MathLab analysis and MathLab vis. where can i put generated function in the Apps->MathLab analysis list?