MultiTech / libxDot-mbed5

Stable version of the xDot library for mbed 5. This version of the library is suitable for deployment scenarios.

Dependents:   Dot-Examples XDOT-Devicewise Dot-Examples-delujoc Dot-Examples_receive ... more

Fork of libxDot-dev-mbed5-deprecated by MultiTech

The Dot library provides a LoRaWan certified stack for LoRa communication using MultiTech mDot and xDot devices. The stack is compatible with mbed 5.

The name of the repository can be used to determine which device the stack was compiled for and if it's a development or production-ready build:

A changelog for the Dot library can be found here.

The Dot library version and the version of mbed-os it was compiled against can both be found in the commit message for that revision of the Dot library. Building your application with the same version of mbed-os as what was used to build the Dot library is highly recommended!

The Dot-Examples repository demonstrates how to use the Dot library in a custom application.

The mDot and xDot platform pages have lots of platform specific information and document potential issues, gotchas, etc, and provide instructions for getting started with development. Please take a look at the platform page before starting development as they should answer many questions you will have.

FOTA

Full FOTA support is only available with mDot, xDot does not have the required external flash. xDot can use the FOTA example to dynamically join a multicast session only. After joining the multicast session the received Fragmentation packets could be handed to a host MCU for processing and at completion the firmware can be loaded into the xDot using the bootloader and y-modem. See xDot Developer Guide.

  • Add the following code to allow Fota to use the Dot instance

examples/src/fota_example.cpp

    // Initialize FOTA singleton
    Fota::getInstance(dot);
  • Add fragmentation handling the the PacketRx event

examples/inc/RadioEvent.h

    virtual void PacketRx(uint8_t port, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr, lora::DownlinkControl ctrl, uint8_t slot, uint8_t retries, uint32_t address, bool dupRx) {
        mDotEvent::PacketRx(port, payload, size, rssi, snr, ctrl, slot, retries, address, dupRx);

#if ACTIVE_EXAMPLE == FOTA_EXAMPLE
        if(port == 200 || port == 201 || port == 202) {
            Fota::getInstance()->processCmd(payload, port, size);
        }
#endif
    }

The FOTA implementation has a few differences from the LoRaWAN Protocol

  • Fragmentation Indexing starts at 0
  • McKEKey is 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
  • Start Time is a count-down in seconds to start of session

Diff: MTS-Lora/vendor/multitech/MTS-Utils/MTSText.h

Revision:
2:4569491293d7
Parent:
0:d8b7d49a734c
--- a/MTS-Lora/vendor/multitech/MTS-Utils/MTSText.h	Thu Sep 22 15:06:54 2016 -0500
+++ b/MTS-Lora/vendor/multitech/MTS-Utils/MTSText.h	Thu Sep 22 16:29:07 2016 -0500
@@ -0,0 +1,83 @@
+#ifndef MTSTEXT_H
+#define MTSTEXT_H
+
+#include <string>
+#include <vector>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+namespace mts
+{
+
+/** This class contains a number of static methods for manipulating strings and other
+* text data.
+*/
+class Text
+{
+public:
+    /** This static method can be used to pull out a string at the next line break. A
+    * break can either be a newline '\n', carriage return '\r' or both.
+    *
+    * @param source the source string to look for the line break on.
+    * @param start the start postion within the string to begin looking for the line
+    * break.
+    * @param cursor this value will be updated with the index for the next available character
+    * after the line break. If a line break is not found returns -1.
+    * @returns the string beginning with the start index up to including the line breaks.
+    */
+    static std::string getLine(const std::string& source, const size_t& start, size_t& cursor);
+
+    /** This is a static method for splitting strings using a delimeter value.
+    *
+    * @param str the string to try and split.
+    * @param delimiter the delimeter value to split on as a character.
+    * @param limit the maximum number of splits. If equal to 0 it splits as amny times as possible.
+    * The default is 0.
+    * @returns an ordered vector of strings conatining the splits of the original string.
+    */
+    static std::vector<std::string> split(const std::string& str, char delimiter, int limit = 0);
+
+    /** This is a static method for splitting strings using a delimeter value.
+    *
+    * @param str the string to try and split.
+    * @param delimiter the delimeter value to split on as a string.
+    * @param limit the maximum number of splits. If equal to 0 it splits as amny times as possible.
+    * The default is 0.
+    * @returns an ordered vector of strings conatining the splits of the original string.
+    */
+    static std::vector<std::string> split(const std::string& str, const std::string& delimiter, int limit = 0);
+    
+    static std::string readString(char* index, int length);
+
+    static std::string toUpper(const std::string str);
+
+    static std::string float2String(double val, int precision);
+
+    static std::string bin2hexString(const std::vector<uint8_t>& data, const char* delim = "", bool leadingZeros = false, bool bytePadding = true);
+
+    static std::string bin2hexString(const uint8_t* data, const uint32_t len, const char* delim = "", bool leadingZeros = false, bool bytePadding = true);
+
+    static std::string bin2base64(const std::vector<uint8_t>& data);
+
+    static std::string bin2base64(const uint8_t* data, size_t size);
+
+    static bool base642bin(const std::string in, std::vector<uint8_t>& out);
+
+    static void ltrim(std::string& str, const char* args);
+
+    static void rtrim(std::string& str, const char* args);
+
+    static void trim(std::string& str, const char* args);
+
+private:
+    // Safety for class with only static methods
+    Text();
+    Text(const Text& other);
+    Text& operator=(const Text& other);
+};
+
+}
+
+#endif