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  1. Hello everyone !! I have a small problem and it is the following: First I'm simulating sensors with approximate random's values, and I need to upload this data to pubnub and freeboard as monitoring platform, the problem I have is that in pubnub I find the values updated in real time, What happens, is that when I upload to freeboard are not updated, they take a fixed number. I am hesitating in the way of storing them, I think it is not appropriate. I have the well-linked accounts between pubnub and freeboard. Greetings. MR this is my code !! #include <SPI.h> #include <WiFi.h> #include "PubNub.h" #include <aJSON.h> #define NUM_CHANNELS 4 // How many analog channels do you want to read double randomDouble(double min, double max, int numCasas){ long _min = min * pow(10, numCasas) + 0.1; long _max = max * pow(10, numCasas) + 0.1; return (double) random(_min, _max) / pow(10, numCasas) ; } int sn=0; char pubkey[] = "***"; char subkey[] = "***"; char channel[] ="***"; char uuid[] = "***"; // your network name also called SSID char ssid[] = "***"; // your network password char password[] = "***"; static int keyIndex = 0; void setup() { Serial.begin(115200); randomSeed(analogRead(0)); PubNub.begin(pubkey, subkey); PubNub.set_uuid(uuid); Serial.println("PubNub set up"); } void loop() { double Freq = randomDouble(10.71, 10.79, 2)+1839755.00; double voltage_1 = randomDouble(0.82, 0.88, 2); double temperature = randomDouble(18.30, 20.00, 2); double vol = randomDouble(3.10, 3.29, 2); double data[] = {Freq, voltage_1, temperature, vol}; PubSubClient *client; // create JSON objects aJsonObject *msg, *dataReadings; msg = aJson.createObject(); aJson.addItemToObject(msg, "DataReading", dataReadings = aJson.createObject()); // get latest sensor values then add to JSON message for (int i = 0; i < NUM_CHANNELS; i++) { String Channel = String(data[i]); char charBuf[Channel.length()+1]; Channel.toCharArray(charBuf, Channel.length()+1); double Values = data[i]; aJson.addNumberToObject(dataReadings, charBuf, Values); } // convert JSON object into char array, then delete JSON object char *json_String = aJson.print(msg); aJson.deleteItem(msg); // publish JSON formatted char array to PubNub Serial.print("publishing a message: "); Serial.println(json_String); PubNub.publish(channel, json_String); free(json_String); delay(500); }