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Questions tagged [thingspeak]

ThingSpeak is an open source Internet of Things (IoT) application and API to store and retrieve data from things using the HTTP protocol over the Internet or via a Local Area Network. ThingSpeak enables the creation of sensor logging applications, location tracking applications, and a social network of things with status updates.

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Why does my Arduino stop uploading to the Thingspeak server after several hours?

I'm using a Maduino Zero 4G SIM7600 device to upload data from 28 sensors to a ThingSpeak IoT server. It works well for a few hours, then stops uploading the data. Sometimes it starts again after an ...
Zurn's user avatar
  • 21
0 votes
1 answer
571 views

Play audio on an ESP32 or an Arduino

I am in the process of making a talking robot and I have linked my ESP32 to a Google text-to-speech service. The service returns me a base64 8-bit audio response. I need to play this audio and I can't ...
Fernando Troya's user avatar
1 vote
1 answer
146 views

How to increase the frequency of data transmission of SIM900A GSM Module connected to Arduino Uno? [closed]

I have a SIM900A GSM Module hooked onto an Arduino Uno board. The Arduino is connected to a MPU6050 Accelerometer which is constantly monitoring data at 1 second interval. I am trying to transmit the ...
Tamoghna Bhattacharya's user avatar
0 votes
2 answers
6k views

Why am I getting "expected primary-expression before '.' token"?

I know this is a common question but the truth is every code is different. Sometimes it's hard to apply the concept to your code, it does not work. So please help me. What is wrong with this code? I ...
Agent 96's user avatar
1 vote
2 answers
90 views

Temperature anomaly on BS18B20 + NodeMCU on Tingspeak

Temperature drops occasionally from 59+C to -13C or to other random values. Used sketch and info from this site: http://internetofthinking.blogspot.com/2016/02/upload-ds18b20-temperature-sensor-data....
user60654's user avatar
1 vote
0 answers
56 views

HTTP request is not being executed in Arduino script for sending sensor data to Thingspeak cloud

I am trying to send the data from DHT sensor (temperature and humidity on 2 channels of Thingspeak cloud server) and firstly display them on Thingspeak cloud. Afterwards I will need to get those data ...
Miloš Mladenović's user avatar
-1 votes
1 answer
200 views

Serial monitor shows repeated CIPSEND and CIPCLOSE

I'm trying to build a heart rate monitor using ESP-01. The code compiles and uploads well but once uploaded, in the serial monitor it shows the following. It keeps repeat CIPSEND and CIPCLOSE over and ...
T.L.D's user avatar
  • 1
2 votes
0 answers
885 views

Can't push data to ThingSpeak - Status 400 Bad Request

I'm trying to push some data to ThingSpeak using the EtherCard library with the ENC28J60 ethernet module. At the moment I'm using the exemple code that comes with the library just for tests. But no ...
Shinforinpola's user avatar
0 votes
1 answer
865 views

Can't extract basic data using ThingspeakHTTP

I don't know anything about HTML, but I want to extract the % probability of the Northern lights being visible from this webpage http://aurorawatch.ca/. I entered this into the URL field, and selected ...
Alex Kuebel's user avatar
-1 votes
1 answer
805 views

Data is not sending to Thingspeak using SIM900 with an interrupt in the code

I'm currently working in a weather station with online recording on Thingspeak. When I send a set of parameters (T, Pressure, Humidity, light), I don't have any problem with sending data. But when I ...
Ricardo Carrillo's user avatar
0 votes
1 answer
3k views

Unable to parse my JSON Data in Arduino IDE

i want to get my thingSpeak channel data into arduino by performing GET request every things works fine.Further i used Arduinojson lib to parse the JSON but i am getting failed every time when i try ...
Wisal's user avatar
  • 15
0 votes
1 answer
6k views

Reading data from ThingSpeak via Arduino Uno+ESP8266

I am integrating thingspeak and arduino plus Esp8266 mean making a simple project which contain my android app to update the thingspeak channel and then want to read the data of that channel via ...
Wisal's user avatar
  • 15
0 votes
2 answers
3k views

Unable to upload the data on thingspeak using uno and esp8266

I am able to connect to thingspeak but now able to upload the data. here are my set of commands: AT+CIPMUX=0 OK AT+CIPSTART="TCP","184.106.153.149", 80 OK Linked AT+CIPSTATUS STATUS:3 +CIPSTATUS:...
Prasad's user avatar
  • 101