Sorry Geir. I see your issue now.
Overall, our libraries are not set up to use the FONA connection libraries, yet. However, here is what I would suggest:
You can use MQTT directly with Losant:
https://docs.losant.com/mqtt/overview/
Since Adafruit’s MQTT libraries support the FONA hardware, we can use this library to connect to Losant via MQTT. We don’t have that device here ( so I couldn’t test ), but I changed the example code to what should work. Starting form the example, all you need to do is connect to Losant instead of Adafruit.io.
/***************************************************
Adafruit MQTT Library FONA Example
Designed specifically to work with the Adafruit FONA
----> http://www.adafruit.com/products/1946
----> http://www.adafruit.com/products/1963
----> http://www.adafruit.com/products/2468
----> http://www.adafruit.com/products/2542
These cellular modules use TTL Serial to communicate, 2 pins are
required to interface.
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <Adafruit_SleepyDog.h>
#include <SoftwareSerial.h>
#include "Adafruit_FONA.h"
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_FONA.h"
/*************************** FONA Pins ***********************************/
// Default pins for Feather 32u4 FONA
#define FONA_RX 9
#define FONA_TX 8
#define FONA_RST 4
SoftwareSerial fonaSS = SoftwareSerial(FONA_TX, FONA_RX);
Adafruit_FONA fona = Adafruit_FONA(FONA_RST);
/************************* WiFi Access Point *********************************/
// Optionally configure a GPRS APN, username, and password.
// You might need to do this to access your network's GPRS/data
// network. Contact your provider for the exact APN, username,
// and password values. Username and password are optional and
// can be removed, but APN is required.
#define FONA_APN ""
#define FONA_USERNAME ""
#define FONA_PASSWORD ""
/************************* Adafruit.io Setup *********************************/
#define LOSANT_SERVER "broker.losant.com"
#define LOSANT_SERVERPORT 1883
#define LOSANT_ACCESS_KEY "my-access-key"
#define LOSANT_ACCESS_SECRET "my-access-secret"
#define LOSANT_DEVICE_ID "my-device-id"
/************ Global State (you don't need to change this!) ******************/
// Setup the FONA MQTT class by passing in the FONA class and MQTT server and login details.
Adafruit_MQTT_FONA mqtt(&fona, LOSANT_SERVER, LOSANT_SERVERPORT, LOSANT_DEVICE_ID, LOSANT_ACCESS_KEY, LOSANT_ACCESS_SECRET);
// You don't need to change anything below this line!
#define halt(s) { Serial.println(F( s )); while(1); }
// FONAconnect is a helper function that sets up the FONA and connects to
// the GPRS network. See the fonahelper.cpp tab above for the source!
boolean FONAconnect(const __FlashStringHelper *apn, const __FlashStringHelper *username, const __FlashStringHelper *password);
/****************************** Feeds ***************************************/
// Publish Losant state
// Notice MQTT paths for Losant follow the form: losant/<device-id>/state
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, "losant/" + LOSANT_DEVICE_ID "/state");
// subscribe Losant commands
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, "losant/" + LOSANT_DEVICE_ID "/command");
/*************************** Sketch Code ************************************/
// How many transmission failures in a row we're willing to be ok with before reset
uint8_t txfailures = 0;
#define MAXTXFAILURES 3
void setup() {
while (!Serial);
// Watchdog is optional!
//Watchdog.enable(8000);
Serial.begin(115200);
Serial.println(F("Adafruit FONA MQTT demo"));
mqtt.subscribe(&onoffbutton);
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
// Initialise the FONA module
while (! FONAconnect(F(FONA_APN), F(FONA_USERNAME), F(FONA_PASSWORD))) {
Serial.println("Retrying FONA");
}
Serial.println(F("Connected to Cellular!"));
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
}
uint32_t x=0;
void loop() {
// Make sure to reset watchdog every loop iteration!
Watchdog.reset();
// 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();
Watchdog.reset();
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
txfailures++;
} else {
Serial.println(F("OK!"));
txfailures = 0;
}
Watchdog.reset();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// ping the server to keep the mqtt connection alive, only needed if we're not publishing
//if(! mqtt.ping()) {
// Serial.println(F("MQTT Ping failed."));
//}
}
// 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... ");
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
}
Serial.println("MQTT Connected!");
}
With this code you can still publish state and receive device commands from Losant. For more MQTT info, check out:
https://docs.losant.com/mqtt/overview/
