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demo.ble.lora.rm1xx.sb
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demo.ble.lora.rm1xx.sb
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//******************************************************************************
// Copyright (c) 2016-2017, Laird
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
// IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// SPDX-License-Identifier:ISC
//
//******************************************************************************
//
// This application demos using BLE to read data from a sensor and transmit the
// data using LoRa. Before running, a BL600/BL652/BT900 will need to have the
// "temp.server.notify.bl600" application loaded and running or a TI Sensortag
// CC2650 needs to be turned on
//
// Then the ABP LoRa keys need to be loaded to the RM1xx module as described in
// the "LoRaWAN Keys and IDs Overview" document on the Laird RM1xx website,
// https://www.lairdtech.com/products/rm1xx-lora-modules and the module
// restarted before running the application.
//
// Note that this application requires ABP and would require some changes to
// utilise OTAA.
//
// Once the application starts, it will scan for the BLE sensor, connect to it
// and join the LoRa network, then every 60 seconds the last received reading
// will be send to the LoRa network. Pressing button 2 will exit the application
//
//******************************************************************************
//******************************************************************************
// Definitions
//******************************************************************************
#include "RM1xx-defs.h"
#include "lib/ble.sblib"
//Set this to 0 to disable all debugging messages
#define ENABLE_DEBUG_PRINTS 1
//Number of connections
#define NUM_OF_CONNS 1
//Status bits
#define BLE_CONNECTED 1
#define LORA_CONNECTED 2
//Types of devices
#define TI_SENSORTAG_SENSOR 1
#define LAIRD_TEMP_SENSOR 2
//Base UUID of optical service
#define BASE_UUID "\F0\00\AA\70\04\51\40\00\B0\00\00\00\00\00\00\00"
//Base UUID of Laird service
#define BASE_UUID_LAIRD "\56\9a\00\00\b8\7f\49\0c\92\cb\11\ba\5e\a5\16\7c"
//Sibling UUID of optical read characteristic
#define OPT_READ_SIBLING_UUID 0xAA71
//Sibling UUID of optical configuration characteristic
#define OPT_CONFIG_SIBLING_UUID 0xAA72
//Sibling UUID of temperature characteristic
#define LAIRD_TEMP_SIBLING_UUID 0x2A6E
//Notification UUID
#define NOTIFICATION_UUID 0x2902
//Time between sensor updates to be sent via LoRa (in ms)
#define LORA_SEND_DATA_INTERVAL 60000
//******************************************************************************
// Register Error Handler as early as possible
//******************************************************************************
sub HandlerOnErr()
print "\n OnErr - ";GetLastError();"\n"
endsub
onerror next HandlerOnErr
//******************************************************************************
// Debugging resource as early as possible
//******************************************************************************
sub AssertRC(byval rc as integer, byval tag as integer)
if rc!=0 then
print "Failed with ";integer.h' rc;" at tag ";tag;"\n"
endif
endsub
//==============================================================================
//==============================================================================
sub DbgMsgVal(byval msg$ as string, byval vl as integer)
if (ENABLE_DEBUG_PRINTS!=0) then
print msg$;" ";vl;"\n"
endif
endsub
//==============================================================================
//==============================================================================
sub DbgMsg(byval msg$ as string)
if (ENABLE_DEBUG_PRINTS!=0) then
print msg$;"\n"
endif
endsub
//******************************************************************************
// Global Variable Declarations
//******************************************************************************
dim rc
dim looprc
dim sensorType //Type of device that the RM1xx is connected to
dim PrevAds$[6] //Previous adverts (size of 6 adverts)
dim PrevAdCount //Number of previous adverts
dim hc[NUM_OF_CONNS+1] //Contains connection handles
dim conns //Number of connections
dim hcVsp //Handle of connection to use for VSP service
dim LastReading$ //Most recent reading from the Luminosity/Temperature sensor
dim status //Current status of BLE and LoRa links
DIM OptHndl //Handle of the optical value characteristic
DIM OptHndlDesc //Handle of the optical value characteristic descriptor
DIM OptConfigHndl //Handle of the optical value configuration chracteristic
DIM TmpHndl //Handle of the temperature characteristic
DIM CAction //Current action of state machine
DIM currentsize
DIM maxsize
//******************************************************************************
// Initialise Global Variable
//******************************************************************************
PrevAdCount = 0
//******************************************************************************
// Function and Subroutine definitions
//******************************************************************************
//==============================================================================
//Release all connection handles
//==============================================================================
sub InitConnHandles()
dim z
for z=0 to (NUM_OF_CONNS)
hc[z]=-1
next
endsub
//==============================================================================
//==============================================================================
function AcqConnHandle(hConn)
dim z
for z=1 to (NUM_OF_CONNS)
if hc[z] == -1 then
hc[z]=hConn
exitfunc z
endif
next
endfunc 0
//==============================================================================
//==============================================================================
function RelConnHandle(hConn)
dim z
for z=1 to (NUM_OF_CONNS)
if hc[z] == hConn then
hc[z]=-1
exitfunc z
endif
next
endfunc 0
//==============================================================================
//==============================================================================
sub ShowConnParms(nCtx as integer)
dim intrvl,sprvto,slat
rc = BleGetCurConnParms(nCtx,intrvl,sprvto,slat)
AssertRC(rc, 184)
if rc==0 then
DbgMsgVal("Conn Interval",intrvl)
DbgMsgVal("Conn Supervision Timeout",sprvto)
DbgMsgVal("Conn Slave Latency",slat)
DbgMsg("\n")
endif
endsub
//==============================================================================
//==============================================================================
FUNCTION RemoveZeros(Data$) AS STRING
//This function removes leading 0s from the front of a string
dim i, Done, TmpStr$ : i = 0 : Done = 0
WHILE (i < strlen(Data$))
TmpStr$ = MID$(Data$, i, 1)
IF (STRCMP(TmpStr$, "0") != 0) THEN
//Other number found - cut string to this length and mark as finished
TmpStr$ = RIGHT$(Data$, strlen(Data$)-i)
i = strlen(Data$)
Done = 1
ENDIF
i = i+1
ENDWHILE
IF (Done == 0) THEN
//Other number not found in provided string
TmpStr$ = "0"
ENDIF
ENDFUNC TmpStr$
//******************************************************************************
// Handler definitions
//******************************************************************************
//==============================================================================
// This handler is called when data has arrived at the serial port
//==============================================================================
function HndlrUartRxCmd()
endfunc 1
//==============================================================================
// This handler is called when there is an advert timeout
//==============================================================================
function HndlrBlrAdvTimOut()
print "Adverts timeout\n"
endfunc 1
//==============================================================================
// This handler is called when there is an advert report waiting to be read
//==============================================================================
function HndlrAdvRpt()
DIM periphAddr$, advData$, nRssi, ADval$, TmpStr$, TmpStr2$, TmpVal
//Read all cached advert reports
looprc = BleScanGetAdvReport(periphAddr$, advData$, TmpVal, nRssi)
while (looprc == 0)
//Check if this advert was received recently
TmpStr$ = periphAddr$ + advData$
TmpVal = 0
while (TmpVal < PrevAdCount)
if (strcmp(TmpStr$, PrevAds$[TmpVal]) == 0) then
//Already seen this advert, ignore it
TmpVal = 254
endif
TmpVal = TmpVal+1
endwhile
if (TmpVal != 255) then
//Advert not seen before - get device name
rc = BLEGETADBYTAG(advData$, 8, TmpStr$)
if (rc == 0) then
//Name found at index 0x08
PRINT TmpStr$;"\n"
else
//Name not found at index 0x08, check 0x09
rc = BLEGETADBYTAG(advData$, 9, TmpStr$)
if (rc == 0) then
//Name found at index 0x09
PRINT TmpStr$;"\n"
endif
endif
if (strcmp(TmpStr$, "CC2650 SensorTag")==0) then
sensorType = TI_SENSORTAG_SENSOR
//Connect to the SensorTag
print "Found the TI SensorTag. Connecting...\n"
rc = BleConnect(periphAddr$, 5000, 25000, 750000, 5000000)
AssertRC(rc, 272)
else
rc = BLEGETADBYTAG(advData$, 7, TmpStr$)
if (rc == 0) then
//Complete list of 128-bit UUIDs present
dim RevTmpStr$
dim i, l
i = strlen(TmpStr$)-1
l = 0
while (i >= 0)
//Reverse the order of the string
rc = strsetchr(RevTmpStr$, strgetchr(TmpStr$, i), l)
i = i-1
l = l+1
endwhile
//Compare the 128-bit UUID with the desired 128-bit UUID
if (strcmp(RevTmpStr$, BASE_UUID_LAIRD) == 0) then
//Found the target device
sensorType = LAIRD_TEMP_SENSOR
//Connect to the temperature sensor
print "Found the Laird temperature sensor. Connecting...\n"
rc = BleConnect(periphAddr$, 5000, 25000, 750000, 5000000)
AssertRC(rc, 297)
endif
endif
endif
//Output BT addr and RSSI
PRINT strhexize$(periphAddr$);", RSSI: ";nRssi;"\n"
//Go through all tags and print them out
PRINT "Advertising data [hex]:\n"
TmpVal = 0
while (TmpVal <= 0xff)
if (TmpVal == 8) then
//Skip name tags
TmpVal = 10
endif
rc = BLEGETADBYTAG(advData$, TmpVal, TmpStr$)
if (rc == 0) then
//Output tag
TmpStr2$ = ""
SPRINT #TmpStr2$,INTEGER.H'TmpVal
TmpStr2$ = RemoveZeros(TmpStr2$)
PRINT " Length: ";strlen(TmpStr$);", Type: 0x";TmpStr2$;", Value: ";STRHEXIZE$(TmpStr$);"\n"
endif
TmpVal = TmpVal+1
endwhile
//Newline
PRINT "\n"
//Check if the array is too large
if (PrevAdCount > 4) then
//Array too big - clear it
TmpVal = 0
while (TmpVal < 6)
PrevAds$[TmpVal] = ""
TmpVal = TmpVal+1
endwhile
PrevAdCount = 0
endif
//Add this adverts to the recent list
TmpStr$ = periphAddr$ + advData$
PrevAds$[PrevAdCount] = TmpStr$
PrevAdCount = PrevAdCount+1
endif
looprc = BleScanGetAdvReport(periphAddr$, advData$, TmpVal, nRssi)
endwhile
endfunc 1
//==============================================================================
//==============================================================================
function HndlrFindChar(hConn,cProp,hVal,hiUuid)
//Callback for finding a characteristic
dim uHndS$
dim uHndS, uHndC
print "EVFINDCHAR("
print "hConn=";integer.h' hConn;",hIncUuid=";integer.h' hiUuid
print ",hVal=";hVal;",Props=";integer.h' cProp;")\n"
if (CAction == 0) then
//Result for finding first characteristic
if (sensorType == TI_SENSORTAG_SENSOR) then
//TI Sensortag
CAction = 1
OptHndl = hVal
uHndS$ = BASE_UUID
uHndS = BleHandleUuid128(uHndS$)
uHndC = BleHandleUuidSibling(uHnds, OPT_CONFIG_SIBLING_UUID)
rc = BleGattcFindChar(hConn, uHndS, 0, uHndC, 0)
AssertRC(rc, 368)
elseif (sensorType == LAIRD_TEMP_SENSOR) then
//Laird temperature sensor
CAction = 2
TmpHndl = hVal
uHndS$ = BASE_UUID_LAIRD
uHndS = BleHandleUuid128(uHndS$)
uHndC = BleHandleUuidSibling(uHnds, LAIRD_TEMP_SIBLING_UUID)
rc = BLEGATTCFINDDESC(hConn, uHndS, 0, uHndC, 0, BleHandleUuid16(NOTIFICATION_UUID), 0)
AssertRC(rc, 377)
endif
elseif (CAction == 1) then
//Result for finding second characteristic
CAction = 2
OptConfigHndl = hVal
uHndS$ = BASE_UUID
uHndS = BleHandleUuid128(uHndS$)
uHndC = BleHandleUuidSibling(uHnds, OPT_READ_SIBLING_UUID)
rc = BLEGATTCFINDDESC(hConn, uHndS, 0, uHndC, 0, BleHandleUuid16(NOTIFICATION_UUID), 0)
AssertRC(rc, 387)
endif
endfunc 1
//==============================================================================
// This handler is called when there is a LoRa TX Complete event
//==============================================================================
function HndlrLoRaTxComp()
print "LoRa TX Complete Event\n"
endfunc 1
//==============================================================================
// This handler is called when the LoRa Join procedure starts
//==============================================================================
function HndlrLoRaJoining()
print "Attempting to join the LoRa network\n"
endfunc 1
//==============================================================================
// This handler is called when the LoRa Join Process completes successfully
//==============================================================================
function HndlrLoRaJoined()
print "Joined the LoRa network\n"
status = status+LORA_CONNECTED
//Start the timer for sending data
TimerStart(0, LORA_SEND_DATA_INTERVAL, 1)
endfunc 1
//==============================================================================
// This handler is called when there is a BLE message
//==============================================================================
function HndlrBleMsg(BYVAL nMsgId AS INTEGER, BYVAL nCtx AS INTEGER)
dim hz
dim atHandle, at$
dim rc,uHndl,sIdx,cIdx,baseUuid$,uHndS$,uHndS,uHndC
select nMsgId
case BLE_EVBLEMSGID_CONNECT
//Connected to BLE device
hz = AcqConnHandle(nCtx)
conns = conns + 1
print " --- Connect: (";integer.h' nCtx;") handle=";hz;"\n"
if hz == 0 then
//Could not store the handle so drop the connection
rc = BleDisconnect(nCtx)
print " DROPPED"
else
//accepted so display connection parameters
ShowConnParms(nCtx)
//always assume most recent connection for VSP
hcVsp = hc[hz]
endif
//First action
CAction = 0
if (sensorType == TI_SENSORTAG_SENSOR) then
//Search for TI sensortag optical read characteristic
uHndS$ = BASE_UUID
uHndS = BleHandleUuid128(uHndS$)
uHndC = BleHandleUuidSibling(uHnds, OPT_READ_SIBLING_UUID)
else
//Search for Laird temperature sensor characteristic
uHndS$ = BASE_UUID_LAIRD
uHndS = BleHandleUuid128(uHndS$)
uHndC = BleHandleUuidSibling(uHnds, LAIRD_TEMP_SIBLING_UUID)
endif
//Find the characteristic
rc = BleGattcFindChar(nCtx, uHndS, 0, uHndC, 0)
AssertRC(rc, 458)
status = status+BLE_CONNECTED
if status != (LORA_CONNECTED + BLE_CONNECTED) then
//Join the LoRa network using ABP
rc = LORAMACJoin(LORAMAC_JOIN_BY_PERSONALIZATION)
AssertRC(rc, 464)
endif
case BLE_EVBLEMSGID_DISCONNECT
//BLE device disconnected
TimerCancel(0)
hz = RelConnHandle(nCtx)
conns = conns - 1
print " --- Disconnect: (";integer.h' nCtx;") handle=";hz;"\n"
status = status-BLE_CONNECTED
case BLE_EVBLEMSGID_NEW_BOND
DbgMsg(" +++ New Bond")
case BLE_EVBLEMSGID_UPDATED_BOND
DbgMsg(" +++ Updated Bond")
case BLE_EVBLEMSGID_ENCRYPTED
DbgMsg(" +++ Encrypted Connection")
case BLE_EVBLEMSGID_CONN_TO_BONDED_MASTER
DbgMsgVal(" -- Conn to Bonded Master ",nCtx)
case BLE_EVBLEMSGID_AUTH_KEY_REQUEST
DbgMsgVal(" +++ Auth Key Request, type=",nCtx)
case BLE_EVBLEMSGID_CONN_PARMS_UPDATE
ShowConnParms(nCtx)
case BLE_EVBLEMSGID_CONN_PARMS_UPDATE_FAIL
DbgMsg(" ??? Conn Parm Negotiation FAILED")
case else
DbgMsgVal("Unknown Ble Msg", nMsgId)
endselect
endfunc 1
//==============================================================================
//Handler to service button 2 pressed
//==============================================================================
function HndlrBtn2Pr()
//Exit application
print "Button 2 pressed\n"
endfunc 0
//==============================================================================
//==============================================================================
function HndlrFindDesc(hConn, hDesc)
//Result for finding descriptor
print "EVFINDDESC("
print "hConn=";integer.h' hConn;",hDesc=";hDesc;")\n"
if (CAction == 2) then
if (hDesc != 0) then
//Descriptor has been found
CAction = 3
OptHndlDesc = hDesc
dim at$
at$="\01\00"
print"Enable notification.\n"
rc = BleGattcWrite(hc[1],hDesc,at$)
AssertRC(rc, 525)
else
//Descriptor was not found
rc = BleDisconnect(hConn)
print "Required descriptor not found, disconnecting...\n"
endif
endif
endfunc 1
//==============================================================================
//==============================================================================
function HndlrAttrWrite(hConn,aHndl,nSts)
//Result for writing GATT attribute
print "EVATTRWRITE(hConn=";integer.h' hConn;",handle=";aHndl;",status=";nSts;")\n"
if (CAction == 3) then
CAction = 4
if (sensorType == TI_SENSORTAG_SENSOR) then
//Enable the TI sensortag's optical sensor
dim at$ : at$="\01"
rc = BleGattcWrite(hc[1], OptConfigHndl, at$)
AssertRC(rc, 545)
endif
endif
endfunc 1
//==============================================================================
//==============================================================================
function HndlrAttrNtfyCmd()
//Result for GATT characteristic notification
dim hConn,hAttr,att$,dscd
dim lumoVal
print "EVATTRNOTIFY()\n"
do
rc = BleGattcNotifyRead(hConn,hAttr,att$,dscd)
if rc==0 then
print " >BleGattcNotifyRead("
print "hConn=";integer.h' hConn;",handle=";hAttr;",Dumped=";dscd
print ",data=";StrHexize$(att$);")\n"
if (sensorType == TI_SENSORTAG_SENSOR && hAttr == OptHndl) then
//Luminosity sensor notificaion
LastReading$ = StrHexize$(att$)
elseif (sensorType == LAIRD_TEMP_SENSOR && hAttr == TmpHndl) then
//Temperature sensor notification
print "Temp is ";strescape$(att$);"\n"
endif
endif
dowhile rc==0
endfunc 1
//==============================================================================
//==============================================================================
function HndlrConnTO()
//Restart scanning for BLE devices
rc = BleScanStart(0,0)
AssertRC(rc, 581)
endfunc 1
//==============================================================================
//==============================================================================
function HndlrTmr0()
//Timer for sending BLE sensor data over LoRa
if status == (LORA_CONNECTED + BLE_CONNECTED) then
//BLE sensor and LoRa connected
rc = LoramacQueryTxPossible(strlen(LastReading$),currentsize,maxsize)
if rc == 0 then
rc = LORAMACTxData(2,LastReading$, 0)
if rc != 0 then
Print "Failed to send packet.\n"
else
print "Transmitting data packet over LoRa\n"
endif
else
Print "Packet too large\n"
Print "size ";strlen(LastReading$);" max ";currentsize;"\n"
endif
AssertRC(rc, 602)
endif
endfunc 1
//******************************************************************************
// Equivalent to main() in C
//******************************************************************************
//------------------------------------------------------------------------------
// Enable synchronous event handlers
//------------------------------------------------------------------------------
ONEVENT EVUARTRX CALL HndlrUartRxCmd
ONEVENT EVGPIOCHAN0 CALL HndlrBtn2Pr
ONEVENT EVTMR0 CALL HndlrTmr0
//BLE events
ONEVENT EVBLEMSG CALL HndlrBleMsg
ONEVENT EVBLE_CONN_TIMEOUT CALL HndlrConnTO
ONEVENT EVBLE_ADV_TIMEOUT CALL HndlrBlrAdvTimOut
ONEVENT EVBLE_ADV_REPORT CALL HndlrAdvRpt
ONEVENT EVFINDCHAR CALL HndlrFindChar
ONEVENT EVFINDDESC CALL HndlrFindDesc
ONEVENT EVATTRWRITE CALL HndlrAttrWrite
ONEVENT EVATTRNOTIFY CALL HndlrAttrNtfyCmd
//LoRa events
ONEVENT EVLORAMACTXCOMPLETE CALL HndlrLoRaTxComp
ONEVENT EVLORAMACJOINING CALL HndlrLoRaJoining
ONEVENT EVLORAMACJOINED CALL HndlrLoRaJoined
//------------------------------------------------------------------------------
// Initialise Services and then wait for events
//------------------------------------------------------------------------------
sub Initialise()
LastReading$ = ""
InitConnHandles()
status = 0
endsub
//==============================================================================
//==============================================================================
sub Startup()
dim uuid$
dim uHndl
rc = GpioBindEvent(0, 5, 1) //Channel 0, bind to high-to-low on GPIO pin 5
AssertRC(rc, 647)
//Open the GATT client
rc = BleGattcOpen(0, 0)
AssertRC(rc, 651)
//Register base uuids with the underlying stack, otherwise the services with the
//128bit uuid's will be delivered with a uuid handle == FF000000 == UNKNOWN
uuid$ = BASE_UUID
uHndl = BleHandleUuid128(uuid$)
uuid$ = "569a0000b87f490c92cb11ba5ea5167c"
uuid$ = StrDehexize$(uuid$)
uHndl = BleHandleUuid128(uuid$)
uuid$ = "569a2a10b87f490c92cb11ba5ea5167c"
uuid$ = StrDehexize$(uuid$)
uHndl = BleHandleUuid128(uuid$)
uuid$ = "569a2a6eb87f490c92cb11ba5ea5167c"
uuid$ = StrDehexize$(uuid$)
uHndl = BleHandleUuid128(uuid$)
//Start scanning for BLE devices
rc = BleScanStart(0, 0)
AssertRC(rc, 669)
endsub
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
Initialise()
Startup()
//------------------------------------------------------------------------------
// Wait for a synchronous event.
// An application can have multiple <WaitEvent> statements
//------------------------------------------------------------------------------
WaitEvent