Particle Photon Door Lock and Sensor

// This #include statement was automatically added by the Particle IDE.
#include <Ubidots.h>

// This #include statement was automatically added by the Particle IDE.
#include <HttpClient.h>

// This #include statement was automatically added by the Particle IDE.
#include <ThingSpeak.h>

TCPClient client;
HttpClient http;

//These values come from Ubidots profile information.
#define VARIABLE_ID "a4f0088407e1381b61f4e681b387569f43f7a16e"
#define TOKEN "qfMt66OyPkjURdKUjzRHliGVVzQmEL"


// Headers currently need to be set at init, useful for API keys etc.
http_header_t headers[] = {

    { "Content-Type", "application/json" },
    { "X-Auth-Token" , TOKEN },
    { NULL, NULL } // NOTE: Always terminate headers with NULL
};

http_request_t request;
http_response_t response;

// List your variables for each scenario:
char resultstr[64];
char resultstrAnalog[64];
int unixTime = 0;
int doorStat = 0;
int doorStatOLD = 0;
int rawAnalogStrength = 0;
unsigned long myChannelNumber = 256818;
const char * myWriteAPIKey = "S745NICTJUQMU26R";

// Create the setup for the Particle code.
void setup() {
//Create particle variables    
    Particle.variable("isClosed", &doorStat, INT);
    Particle.variable("whenToggle", &unixTime, INT);
    Particle.variable("analogSignal", &rawAnalogStrength, INT);
// Initialize D0 pin as output   
    pinMode(D0, OUTPUT);
// WKP pin is reed switch input.
    pinMode(WKP, INPUT);
    request.hostname = "things.ubidots.com";
    request.port = 80;
// Run the Thingspeak Application
    ThingSpeak.begin(client);
}

void loop() {
// The returned value from the Core is going to be in the range from 0 to 4095

        rawAnalogStrength = analogRead(WKP);
        if (rawAnalogStrength < 400) {
            doorStatOLD = doorStat; // Save current value for later
            doorStat = 1; //closed
            digitalWrite(D0, LOW);    // Turn OFF the LED pins
            delay(100); 
           
            float voltage = rawAnalogStrength * (3.3 / 4095.0);
            ThingSpeak.writeField(myChannelNumber, 1, voltage, myWriteAPIKey);
            delay(20000); // ThingSpeak will only accept updates every 15 seconds.
            
        } else {
            doorStatOLD = doorStat; // Save current value for later
            doorStat = 0; //open
            digitalWrite(D0, HIGH);   // Turn ON the LED pins
            delay(100); 
            
            Particle.publish("doorStat","0"); // Publishes to IFTT
            
            float voltage = rawAnalogStrength * (3.3 / 4095.0);
            ThingSpeak.writeField(myChannelNumber, 1, voltage, myWriteAPIKey);
            delay(20000); // ThingSpeak will only accept updates every 15 seconds
        
            Particle.publish("door_opened");
        }
//Thanks to Hans for the Thinspeak code base.  
if (doorStatOLD != doorStat) { //If the door has opened or closed since the last reading then
// Send to Ubidots
    request.path = "/api/v1.6/variables/"VARIABLE_ID"/values"; //send binary result
    sprintf(resultstr, "{\"value\":%i}",doorStat); 
    request.body = resultstr;
    http.post(request, response, headers);
    Serial.println(response.body);
    delay(100);
}
}