my issue is basically the sensor input part. The guide above is using the analog pin...but says i can use one of the digital gpio without an issue. All i get is a 1 returned when i read pin 12. No matter if the door sensor is closed or open.
Any guidance would be appreciated.
Console output...as follows
WiFi connected
IP address:
192.168.2.45
Connecting to MQTT... MQTT Connected!
reading: 1
Sending reading val 1...OK!
reading: 1
Sending reading val 1...OK!
reading: 1
Sending reading val 1...OK!
reading: 1
Code I've pieced together from various examples....
Code: Select all
#include <Adafruit_MQTT.h>
#include <Adafruit_MQTT_Client.h>
#include <AdafruitIO.h>
#include <AdafruitIO_WIFI.h>
#include <AdafruitIO_Data.h>
#include <AdafruitIO_Definitions.h>
#include <AdafruitIO_Feed.h>
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "..."
#define WLAN_PASS "..."
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 8883 // use 8883 for SSL
#define AIO_USERNAME "..."
#define AIO_KEY "..."
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
//WiFiClient client;
// or... use WiFiFlientSecure for SSL
WiFiClientSecure client;
// Store the MQTT server, username, and password in flash memory.
// This is required for using the Adafruit MQTT library.
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/doordig");
int sensorPin = 12;
/*
* setup() - this function runs once when you turn your Arduino on
* We initialize the serial connection with the computer
*/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup()
{
Serial.begin(115200);
pinMode(sensorPin, INPUT);
delay(1000);
Serial.println(F("ESP8266 WiFi AdafruitIO Sensor Test"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
}
void loop() // run over and over again
{
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
//getting the voltage reading from the temperature sensor
int reading = digitalRead(sensorPin);
Serial.print("reading: ");
Serial.println(reading);
// Now we can publish stuff!
Serial.print(F("\nSending reading val "));
Serial.print(reading);
Serial.print("...");
if (! photocell.publish(reading)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
//wait before submitting the next reading
delay(10000);
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}