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Hi, how do I convert daily data to yearly?
This is a small portion of my data:
27/12/2017 0.805 8.467 4.849 28/12/2017 0.554 4.936 3.72 29/12/2017 1.098 7.71 5.999 30/12/2017 2.725 19.78 14.78 31/12/2017 1.238 10.59 8.414 1/1/2018 1.187 8.252 7.914 2/1/2018 1.521 10.36 10.05 3/1/2018 1.922 12.83 15.46 4/1/2018 1.692 10.28 13.63
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
Did you know you can use most emoticons in text objects?
Most emoticons are just unicode characters. Using them as characters in Matlab is as simple as finding their numeric representation and then converting the numeric value back to character. Not all emoticons are convertible in Matlab.
Here's a secret message with emoticons. Use char(x) to decode it.
x = [79 77 71 33 32 55357 56878 32 104 97 118 101 32 121 111 ...
117 32 117 112 100 97 116 101 100 32 116 111 32 77 97 116 ...
108 97 98 32 55358 56595 32 114 50 48 50 49 97 32 121 101 116 32 8265];
Happy St. Patrick's Day!
fig = figure('MenuBar','none','Color', [0 .62 .376]); % Shamrock green
ax = axes(fig,'Units','Normalized','Position',[0 0 1 1]);
axis(ax,'off')
axis(ax,'equal')
hold(ax,'on')
xlim(ax,[-1,1]); ylim(ax,[-1,1])
text(ax, 0, 0, char(9752), 'VerticalAlignment','middle','HorizontalAlignment','center','FontSize', 200)
str = num2cell('Happy St Patrick''s day!');
th = linspace(-pi/2,pi/2,numel(str));
txtHandle = text(ax,sin(th)*.8, cos(th)*.8, str, 'VerticalAlignment','middle','HorizontalAlignment','center','FontSize', 25);
set(txtHandle,{'rotation'}, num2cell(rad2deg(-th')))
thr = 0.017;
rotateCCW = @(xyz)([cos(thr) -sin(thr) 0; sin(thr), cos(thr), 0; 0 0 1]*xyz.').';
while all(isvalid(txtHandle))
newposition = rotateCCW(vertcat(txtHandle.Position));
set(txtHandle,{'position'}, mat2cell(newposition,ones(numel(txtHandle),1),3), ...
{'rotation'}, num2cell([txtHandle.Rotation].'+thr*180/pi))
drawnow()
end
Can't get the last data from a particular channel. is there any way to help me out
I have constructed a circuit with a particle argon device and a temperature/humidity sensor. I am receiving the data to my argon console and it is working properly as there is a hook-sent happening as well as a successful hook-response. Also when I take a look at my ThingSpeak channel it says that there are 77 entries but my problem is there is no drawing in the graph. Everything seems to be done correctly but still no graph.
We've all been there. You've got some kind of output that displays perfectly in the command window and you just want to capture that display as a string so you can use it again somewhere else. Maybe it's a multidimensional array, a table, a structure, or a fit object that perfectly displays the information you need in a neat and tidy format but when you try to recreate the display in a string variable it's like reconstructing the Taj Mahal out of legos.
Enter Matlab r2021a > formattedDisplayText()
Use str=formattedDisplayText(var) the same way you use disp(var) except instead of displaying the output, it's stored as a string as it would appear in the command window.
Additional name-value pairs allow you to
- Specify a numeric format
- Specify loose|compact line spacing
- Display true|false instead of 1|0 for logical values
- Include or suppress markup formatting that may appear in the display such as the bold headers in tables.
Demo: Record the input table and results of a polynomial curve fit
load census [fitobj, gof] = fit(cdate, pop, 'poly3', 'normalize', 'on')
Results printed to the command window:
fitobj =
Linear model Poly3:
fitobj(x) = p1*x^3 + p2*x^2 + p3*x + p4
where x is normalized by mean 1890 and std 62.05
Coefficients (with 95% confidence bounds):
p1 = 0.921 (-0.9743, 2.816)
p2 = 25.18 (23.57, 26.79)
p3 = 73.86 (70.33, 77.39)
p4 = 61.74 (59.69, 63.8)
gof = struct with fields:
sse: 149.77
rsquare: 0.99879
dfe: 17
adjrsquare: 0.99857
rmse: 2.9682Capture the input table, the printed fit object, and goodness-of-fit structure as strings:
rawDataStr = formattedDisplayText(table(cdate,pop),'SuppressMarkup',true) fitStr = formattedDisplayText(fitobj) gofStr = formattedDisplayText(gof)
Display the strings:
rawDataStr =
" cdate pop
_____ _____
1790 3.9
1800 5.3
1810 7.2
1820 9.6
1830 12.9
1840 17.1
1850 23.1
1860 31.4
1870 38.6
1880 50.2
1890 62.9
1900 76
1910 92
1920 105.7
1930 122.8
1940 131.7
1950 150.7
1960 179
1970 205
1980 226.5
1990 248.7
"
fitStr =
" Linear model Poly3:
ary(x) = p1*x^3 + p2*x^2 + p3*x + p4
where x is normalized by mean 1890 and std 62.05
Coefficients (with 95% confidence bounds):
p1 = 0.921 (-0.9743, 2.816)
p2 = 25.18 (23.57, 26.79)
p3 = 73.86 (70.33, 77.39)
p4 = 61.74 (59.69, 63.8)
"
gofStr =
" sse: 149.77
rsquare: 0.99879
dfe: 17
adjrsquare: 0.99857
rmse: 2.9682
"
Combine the strings into a single string and write it to a text file in your temp directory:
txt = strjoin([rawDataStr; fitStr; gofStr],[newline newline]); file = fullfile(tempdir,'results.txt'); fid = fopen(file,'w+'); cleanup = onCleanup(@()fclose(fid)); fprintf(fid, '%s', txt); clear cleanup
Open results.txt.
winopen(file) % for Windows platforms
Hi,
i have made a data logger with arduino and esp8266.the data being the temperature and humidity.
what i wanted to know is there some way i can set a threshold value and thingspeak reacts on it if data is not uploaded for 5 mins and the thinkspeak should through a message to arudio ide
can i use talkback for this?
Hallo,ich bin Anfänger und nutze ThingSpeak um meine Wetterdaten (ESP8266 mit BME280 Sensor) und meine Feinstaubdaten (ESP8266 und PMS5003) anzuzeigen. Der erste ESP überträgt Temperatur, Luftfeuchte und Luftdruck in die Felder 1-3 bei ThingSpeak und der zweite ESP die Feinstaubwerte in die Felder 5-7 bei ThingSpeak. Alle 30 Sekunden werden jeweils Daten geschickt. Im Serial Monitor erfolgt die Übertragung wie geplant im Programm. Mein Problem: Die Ausgabe in ThingSpeak enthält viele Aussetzer. Es gehen Daten verloren und werden nicht angezeigt.
Freue mich über Rückmeldungen. Ulli
Hello, while posting the data i am not getting the Acknoweldgement
Hola a todos, trabajo en un proceso de investigación para mi clase de IoT, donde tengo que presentar un SWOT, sobre la plataforma ThingSpeak ? algún aporte para este tema: gracias anticipadas.!
i have pushed my temperature and humidity data to thinkspeak from ardino ide . now i need a communication between thinkspeak and nodemcu . for example after analysising the data if there is gad in the data then thinkspeak should notify the arudino ide . Is there any way to help me out?
#ifdef SPARK #include "ThingSpeak/ThingSpeak.h" #else #include "ThingSpeak.h" #endif #include ESP8266WiFi.h #include DHT.h #include WiFiClient.h #include ESP8266WebServer.h String apiKey = "SK93H9OUYLARLFYN"; // Enter your Write API key from ThingSpeak
const char ssid = "Ludo"; // replace with your wifi ssid and wpa2 key const char *pass = "12345678901"; const char server = "api.thingspeak.com"; #define DHTPIN 0 //pin where the dht11 is connected DHT dht(DHTPIN, DHT11); WiFiClient client; void setup() { Serial.begin(115200); delay(10); dht.begin(); Serial.println("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
}
void loop()
{
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t))
{
Serial.println("Failed to read from Sensors!");
return;
}
if (client.connect(server,80)) // "184.106.153.149" or api.thingspeak.com
{
String postStr = apiKey;
postStr +="&field1=";
postStr += String(t);
postStr +="&field2=";
postStr += String(h);postStr += "\r\n\r\n";
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(postStr.length());
client.print("\n\n");
client.print(postStr);
Serial.print("Temperature: ");
Serial.print(t);
Serial.print(" degrees Celcius, Humidity: ");
Serial.print(h);
Serial.println("%. Send to Thingspeak.");
}
client.stop();
Serial.println("Waiting...");
delay(1000);
}
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.
Hi
I am a total newb.
I recently created a Channel and two data Fields with their associated charts.
I was then experimenting; playing around with the timescale setting re one of the charts. I selected a range of options and then wondered some, so looked into the function re the options. I now that worked out and wish to simply return to the plotting of all points as they are delivered up from my data source.
However; I can toggle between timescale numbers - however, I cannot revert to no timescale - in other words; to plot every point on the chart.
Please help me return my chart to how it was by default re timescale.
Dear Sir, I have configure the thing-speak account for our monitoring system.But I have two issue regarding this as shown below; 1.whatever the field i have configure in the channel number 1,2...8,with respective tag, same tag is not reflected on graph.i just shown to you for your reference in the attachments. 2 whatever the excel file is generating based on input data it takes 7 minutes of delay.after live capturing. can you please resolve this issue for me
I am working on a project using Sigfox How to write code to read and Analyze Data in Apps MATLAB Analysis ? I have created fields: Temperature (float) , Humidity(float) , and Moisture(string) . Would you mind helping me?
DOES THE THINGSPEAK STORE GIVEN DATE?
>>
Good evening everyone. I have doubts in the display of graphics. The vertical axis means meant and if collected from my sensor. How often are they being plotted. I modified the code to "tempF = thingSpeakRead (readChannelID, 'Fields', TemperatureFieldID, ... 'NumMinutes', 20 * 60, 'ReadKey', readAPIKey); In this case, it would be samples from the last 20 hours. So what does each value displayed on the vertical axis mean?
% Read temperature for the last 10 hours from a ThingSpeak channel and % visualize temperature variations using the MATLAB HISTOGRAM function.
% Channel 12397 contains data from the MathWorks Weather Station, located % in Natick, Massachusetts. The data is collected once every minute. Field % 4 contains temperature data. % Channel ID to read data from readChannelID = 1265072;
% Temperature Field ID TemperatureFieldID = 1;
% Channel Read API Key % If your channel is private, then enter the read API % Key between the '' below: readAPIKey = 'HGPTIKZABQ4DUC8J';
% Get temperature data from field 4 for the last 10 hours = 10 x 60 % minutes. Learn more about the THINGSPEAKREAD function by going to % the Documentation tab on the right side pane of this page.
tempF = thingSpeakRead(readChannelID,'Fields',TemperatureFieldID,... 'NumMinutes',20*60, 'ReadKey',readAPIKey);
histogram(tempF); xlabel('Temperature em ºC'); ylabel('Amostras coletadas'); title('Variação de temperatura');
Hello! I am working on a project to monitor agricultural variables. The sample rate is 20 minutes, but I need to transmit the data every 2 hours to the server to save power. To send the data I use the SIM800 module. How can I do it?
