結果:

Hi everyone. I updated my IoT Debugger project on GitHub. You can use the debugger to view channel data from ThingSpeak.

hello, i have done my iot project using thingspeak as the monitoring source and its working well and good.But now i need get text message to a mobile when the field value gets reached to given threshold value and i have to get a alert text message.Is there any way to resolve my problem from thigspeak data to alert text message.

Thankyou.

My dear friend Ram and I have finished our latest movie series. You can watch the final movie , or see the whole series.

In this movie we show how you can use TimeControls and Reacts to control devices or to schedule your MATLAB code that you can write in ThingSpeak. We also discuss a bit about channel sharing.

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,

I am currently having this internship which we are required to send sensor data to Thingspeak as well receiving data of '0' or '1' from Thingspeak to remotely control the LED.

We have done sending of sensor values to Thingspeak and I was able to send data of '0' and '1' ( on and off) to Thingspeak using a software called "Mendix". Our job is to control the LED from a mobile app and a web dashboard by pressing a button which sends the data to Thingspeak I have created. I am using REST call API to send data to thingspeak by using these 2 URLs: https://api.thingspeak.com/update?api_key=UHVD1PPGDS2X&field1=0 or https://api.thingspeak.com/update?api_key=UHVD1PPGDS&field1=1

This is the C++ code we used to send sensor values to Thingspeak:

void setWifiMode(void){ u8 tx[]="AT+CWMODE=3\r\n"; u32 num = strlen((char *) tx); xil_printf((char *) tx); ESP32_SendBuffer(&ESP32, tx, num); usleep(100); receiveData(3); }

void connectWifi(void){ u8 tx[] = "AT+CWJAP=\"eee-iot\",\"hWV4IOcKp0JX\"\r\n";

    u32 num = strlen((char *) tx);
    xil_printf((char *) tx);
    ESP32_SendBuffer(&ESP32, tx, num);
    usleep(100);
    receiveData(30);
}

void establishConnection(void){ u8 tx[] = "AT+CIPSTART=\"TCP\",\"api.thingspeak.com\",80\r\n"; u32 num = strlen((char *) tx); xil_printf((char *) tx); ESP32_SendBuffer(&ESP32, tx, num); receiveData(10); }

void cipsend(float temp, u16 co2, u8 light, float humidity){ u8 command[150]; u8 finalcmd[50]; //field1 Ph field2 Temp field3 co2 field4 humidity field5 light sprintf((char*)command, "GET http://api.thingspeak.com/update?api_key=CE8E8ZJNGZM8&field1=0&field2=%d.%02d&field3=%d&field4=%d.%02d&field5=%d\r\n" ,(int) temp_degc,((int) (temp_degc * 100)) % 100,co2,(int) hum_perrh,((int) (hum_perrh * 100)) % 100,light); u32 length = strlen((char*)command); sprintf((char*)finalcmd, "AT+CIPSEND=%d\r\n", (int)length); u32 cmdlength =strlen((char*)finalcmd); xil_printf("Length %d\r\n", length); xil_printf((char *)finalcmd); ESP32_SendBuffer(&ESP32, finalcmd, cmdlength); sleep(1); xil_printf((char *)command); ESP32_SendBuffer(&ESP32, command, length); receiveData(4); }

We are using a FPGA hardware called Zybo if that helps. I will really appreciate it if anyone could guide us on this as we are just students. My teammate is doing this alone while I am doing the mobile app and web dashboard alone as well and it is quite taxing for us to achieve this without any professional help.

Our difficulty right now is that we are unable to receive data '1' or '0' from Thingspeak to our FPGA hardware, Zybo. We are using Pmod ESP32 for wifi communication and we are currently using C++ language.

An error occurred while executing the code. I was referring this site : https://in.mathworks.com/help/thingspeak/monitor-channel-inactivity-using-multiple-thingSpeak-apps.html

While executing the code

Error using matlab.internal.webservices.HTTPConnector/copyContentToByteArray (line 373) The server returned the status 400 with message "Bad Request" in response to the request to URL https://api.thingspeak.com/apps/thinghttp/send_request?3DOHBYUXDXD4OVIV=WA327EPXB1DWM0FA.

Error in readContentFromWebService (line 46) byteArray = copyContentToByteArray(connection);

Error in webread (line 125) [varargout{1:nargout}] = readContentFromWebService(connection, options);

Error in Custom (no starter code) 2 (line 3) Trigger_TalkBack = webread(url,'3DOHBYUXDXD4OVIV',ThingHTTP_APIKEYS.To_Trigger_TalkBack) %Trigger TalkBack via ThingHTTP

This is been showing

My Code :

ThingHTTP_APIKEYS = struct('To_Trigger_TalkBack','WA327EPXB1DWM0FA');% Your ThingHTTP app API keys url = 'https://api.thingspeak.com/apps/thinghttp/send_request'; Trigger_TalkBack = webread(url,'3DOHBYUXDXD4OVIV',ThingHTTP_APIKEYS.To_Trigger_TalkBack) %Trigger TalkBack via ThingHTTP

Hi, i was wondering if there is defined skill or some other way to display channel data on an amazon echo show device?

I've been working with several collaborators on an indoor air quality monitoring project. You can see the post at Hackster . It would be interesting to deploy many of these throughout a building to investigate interactions between different rooms and the flow of people. So far I've got two in my house. Let us know if you plan to make a few of them.

I'm presently working on an Air Quality monitor to be able to check the status of my environment and remote environments on ThingSpeak. I was planning on using the BME680 sensor. Does anyone have any experience with this or other air quality sensors? I'm looking probably for CO2 and the like (Volatile Organics), not so much particle sensors, though a combination may be best.

Right now ThingSpeak supports up to 8 fields of data plus the status and three position fields. If you could have more fields, how many would you want? I have one channel of control settings for a project that I would have used up to 12, but no more than that.