From b31b7d77ed0b787ac2b615beeeb6cb4339229538 Mon Sep 17 00:00:00 2001
From: Vasil Zlatanov <v@skozl.com>
Date: Tue, 31 Jan 2017 21:37:12 +0000
Subject: Adafruit reference and Makefile

---
 Makefile |   8 +++++
 main.ino | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 132 insertions(+)
 mode change 100644 => 100755 Makefile
 create mode 100644 main.ino

diff --git a/Makefile b/Makefile
old mode 100644
new mode 100755
index e69de29..18c0068
--- a/Makefile
+++ b/Makefile
@@ -0,0 +1,8 @@
+mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
+current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
+all:
+	arduino --board adafruit:avr:feather32u4 --pref build.path=$(pwd)/build --verify $(pwd)/main.ino
+clean: 
+	rm -rf build
+upload:
+	arduino --board adafruit:avr:feather32u4 --port /dev/ttyACM0 --upload $(pwd)/main.ino
diff --git a/main.ino b/main.ino
new file mode 100644
index 0000000..99c94da
--- /dev/null
+++ b/main.ino
@@ -0,0 +1,124 @@
+/***************************************************
+  This is an example for our Adafruit FONA Cellular Module
+  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.
+  BSD license, all text above must be included in any redistribution
+ ****************************************************/
+
+/*
+THIS CODE IS STILL IN PROGRESS!
+Open up the serial console on the Arduino at 115200 baud to interact with FONA
+This code will receive an SMS, identify the sender's phone number, and automatically send a response
+For use with FONA 800 & 808, not 3G
+*/
+
+#include "Adafruit_FONA.h"
+
+#define FONA_RX 2
+#define FONA_TX 3
+#define FONA_RST 4
+
+// this is a large buffer for replies
+char replybuffer[255];
+
+// We default to using software serial. If you want to use hardware serial
+// (because softserial isnt supported) comment out the following three lines 
+// and uncomment the HardwareSerial line
+#include <SoftwareSerial.h>
+SoftwareSerial fonaSS = SoftwareSerial(FONA_TX, FONA_RX);
+SoftwareSerial *fonaSerial = &fonaSS;
+
+// Hardware serial is also possible!
+//  HardwareSerial *fonaSerial = &Serial1;
+
+Adafruit_FONA fona = Adafruit_FONA(FONA_RST);
+
+uint8_t readline(char *buff, uint8_t maxbuff, uint16_t timeout = 0);
+
+void setup() {
+  while (!Serial);
+
+  Serial.begin(115200);
+  Serial.println(F("FONA SMS caller ID test"));
+  Serial.println(F("Initializing....(May take 3 seconds)"));
+
+  // make it slow so its easy to read!
+  fonaSerial->begin(4800);
+  if (! fona.begin(*fonaSerial)) {
+    Serial.println(F("Couldn't find FONA"));
+    while(1);
+  }
+  Serial.println(F("FONA is OK"));
+
+  // Print SIM card IMEI number.
+  char imei[15] = {0}; // MUST use a 16 character buffer for IMEI!
+  uint8_t imeiLen = fona.getIMEI(imei);
+  if (imeiLen > 0) {
+    Serial.print("SIM card IMEI: "); Serial.println(imei);
+  }
+  
+  Serial.println("FONA Ready");
+}
+
+  
+char fonaInBuffer[64];          //for notifications from the FONA
+
+void loop() {
+  
+  char* bufPtr = fonaInBuffer;    //handy buffer pointer
+  
+  if (fona.available())      //any data available from the FONA?
+  {
+    int slot = 0;            //this will be the slot number of the SMS
+    int charCount = 0;
+    //Read the notification into fonaInBuffer
+    do  {
+      *bufPtr = fona.read();
+      Serial.write(*bufPtr);
+      delay(1);
+    } while ((*bufPtr++ != '\n') && (fona.available()) && (++charCount < (sizeof(fonaInBuffer)-1)));
+    
+    //Add a terminal NULL to the notification string
+    *bufPtr = 0;
+    
+    //Scan the notification string for an SMS received notification.
+    //  If it's an SMS message, we'll get the slot number in 'slot'
+    if (1 == sscanf(fonaInBuffer, "+CMTI: \"SM\",%d", &slot)) {
+      Serial.print("slot: "); Serial.println(slot);
+      
+      char callerIDbuffer[32];  //we'll store the SMS sender number in here
+      
+      // Retrieve SMS sender address/phone number.
+      if (! fona.getSMSSender(slot, callerIDbuffer, 31)) {
+        Serial.println("Didn't find SMS message in slot!");
+      }
+      Serial.print(F("FROM: ")); Serial.println(callerIDbuffer);
+      
+      //Send back an automatic response
+      Serial.println("Sending reponse...");
+      if (!fona.sendSMS(callerIDbuffer, "Hey, I got your text!")) {
+        Serial.println(F("Failed"));
+      } else {
+        Serial.println(F("Sent!"));
+      }
+      
+      // delete the original msg after it is processed
+      //   otherwise, we will fill up all the slots
+      //   and then we won't be able to receive SMS anymore
+      if (fona.deleteSMS(slot)) {
+        Serial.println(F("OK!"));
+      } else {
+        Serial.println(F("Couldn't delete"));
+      }
+    }
+  }
+}
-- 
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