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brentru remove print for pins 3c71f1c Apr 19, 2019
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/****************************************************************
Adafruit MQTT Library, Adafruit IO SSL/TLS Example for AirLift
Must use the latest version of nina-fw from:
https://github.com/adafruit/nina-fw
Works great with Adafruit AirLift ESP32 Co-Processors!
--> https://www.adafruit.com/product/4201
--> https://www.adafruit.com/product/4116
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Brent Rubell for Adafruit Industries.
MIT license, all text above must be included in any redistribution
*******************************************************************/
#include <WiFiNINA.h>
#include <SPI.h>
// For AirLift Breakout/Wing/Shield: Configure the following to match the ESP32 Pins!
#if !defined(SPIWIFI_SS)
// Don't change the names of these #define's! they match the variant ones
#define SPIWIFI SPI
#define SPIWIFI_SS 11 // Chip select pin
#define SPIWIFI_ACK 10 // a.k.a BUSY or READY pin
#define ESP32_RESETN 9 // Reset pin
#define ESP32_GPIO0 -1 // Not connected
#define SET_PINS 1 // Pins were set using this IFNDEF
#endif
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "WLAN_SSID"
#define WLAN_PASS "WIFI_PASSWORD"
int keyIndex = 0; // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
// Using port 8883 for MQTTS
#define AIO_SERVERPORT 8883
// Adafruit IO Account Configuration
// (to obtain these values, visit https://io.adafruit.com and click on Active Key)
#define AIO_USERNAME "YOUR_ADAFRUIT_IO_USERNAME"
#define AIO_KEY "YOUR_ADAFRUIT_IO_KEY"
/************ Global State (you don't need to change this!) ******************/
// WiFiSSLClient for SSL/TLS support
WiFiSSLClient client;
// Setup the MQTT client class by WLAN_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 'test' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish test = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/test");
/*************************** Sketch Code ************************************/
void setup()
{
//Initialize serial and wait for port to open:
Serial.begin(115200);
while (!Serial)
{
; // wait for serial port to connect. Needed for native USB port only
}
// if the AirLift's pins were defined above...
#ifdef SET_PINS
WiFi.setPins(SPIWIFI_SS, SPIWIFI_ACK, ESP32_RESETN, ESP32_GPIO0, &SPIWIFI);
#endif
// check for the wifi module
while (WiFi.status() == WL_NO_MODULE)
{
Serial.println("Communication with WiFi module failed!");
delay(1000);
}
String fv = WiFi.firmwareVersion();
if (fv < "1.0.0")
{
Serial.println("Please upgrade the firmware");
}
// attempt to connect to Wifi network:
Serial.print("Attempting to connect to SSID: ");
Serial.println(WLAN_SSID);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
do
{
status = WiFi.begin(WLAN_SSID, WLAN_PASS);
delay(100); // wait until connected
} while (status != WL_CONNECTED);
Serial.println("Connected to wifi");
printWiFiStatus();
}
uint32_t x = 0;
void loop()
{
// 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();
// Now we can publish stuff!
Serial.print(F("\nSending val "));
Serial.print(x);
Serial.print(F(" to test feed..."));
if (!test.publish(x++))
{
Serial.println(F("Failed"));
}
else
{
Serial.println(F("OK!"));
}
// wait a couple seconds to avoid rate limit
delay(2000);
}
// 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!");
}
void printWiFiStatus()
{
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your board's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
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