SX 01: Configure LoRa
This example shows how to configure the SX1272 module registers and read the settings used
Required Materials
1 x Waspmote PRO 1 x Battery 1 x MiniUSB wire 1 x SX1272 module (LoRa)
Notes
- The SX1272 module is provided with a special 4.5 dBi antenna, which enables maximum range. The only exception is Smart Parking; in this case the antenna is smaller, 0 dBi, to fit inside the enclosure. - It is not recommended to work without an antenna screwed to the module. The module could be damaged due to RF reflections. - The SX1272 module can only be used in special Waspmote units which have been modified to drive the SPI pins to SOCKET0. (only SOCKET0 is available for SX1272) - This module does not save the configuration. So, the network settings as the mode or the channel MUST be configured every time it is switched on. - This example can be executed in Waspmote v12 and Waspmote v15
Code
/*
* ------ [SX_01] - Configure registers--------
*
* Explanation: This example shows how to configure the
* semtech module registers and read the settings used
*
* Copyright (C) 2014 Libelium Comunicaciones Distribuidas S.L.
* http://www.libelium.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* Version: 0.1
* Design: David Gascón
* Implementation: Covadonga Albiñana
*/
#include <WaspSX1272.h>
// status variable
int8_t e;
void setup()
{
// init USB port
USB.ON();
USB.println(F("SX_01 example"));
USB.println(F("SX1272 module configuration in LoRa, complete example"));
USB.println(F("----------------------------------------"));
USB.println(F("Setting configuration:"));
USB.println(F("----------------------------------------"));
// init SX1272 module
sx1272.ON();
// Select channel
e = sx1272.setChannel(CH_06_900);
USB.print(F("Setting Channel CH_06_900.\t state "));
USB.println(e);
// Set packet length
e = sx1272.setPacketLength(83);
USB.print(F("Setting Payload Length to '83'.\t state "));
USB.println(e);
// Set Header mode: OFF
e = sx1272.setHeaderOFF();
USB.print(F("Setting Header OFF.\t\t state "));
USB.println(e);
// Set Mode
e = sx1272.setMode(2);
USB.print(F("Setting Mode '2'.\t\t state "));
USB.println(e);
// Select output power (Max, High or Low)
e = sx1272.setPower('H');
USB.print(F("Setting Power to 'H'.\t\t state "));
USB.println(e);
// Set CRC mode
e = sx1272.setCRC_OFF();
USB.print(F("Setting CRC OFF.\t\t state "));
USB.println(e);
// Set Node Address: from 2 to 255
e = sx1272.setNodeAddress(9);
USB.print(F("Setting Node Address to '9'.\t state "));
USB.println(e);
USB.println();
delay(1000);
}
void loop()
{
USB.println(F("----------------------------------------"));
USB.println(F("Reading configuration in module:"));
USB.println(F("----------------------------------------"));
//////////////////////////
// Get channel
//////////////////////////
e = sx1272.getChannel();
if( e == 0 )
{
USB.print(F("Getting Channel \t--> OK. "));
USB.print(F("Channel is: 0x"));
USB.println(sx1272._channel,HEX);
}
else
{
USB.println(F("Getting Channel --> ERROR"));
}
//////////////////////////
// Get packet length
//////////////////////////
e = sx1272.getPayloadLength();
if( e == 0 )
{
USB.print(F("Getting Payload Length \t--> OK. "));
USB.print(F("Payload Length is: "));
USB.println(sx1272._payloadlength,DEC);
}
else
{
USB.println(F("Getting Payload Length --> ERROR"));
}
//////////////////////////
// Get Header mode
//////////////////////////
e = sx1272.getHeader();
if( e == 0 )
{
USB.print(F("Getting Header \t\t--> OK. "));
USB.print(F("Header (HeaderON = 0; HeaderOFF = 1): "));
USB.println(sx1272._header,DEC);
}
else
{
USB.println(F("Getting Header --> ERROR"));
}
//////////////////////////
// Get power
//////////////////////////
e = sx1272.getPower();
if( e == 0 )
{
USB.print(F("Getting Power \t\t--> OK. "));
USB.print(F("Power is ('M'=0x0F; 'L'=0x00; 'H'=0x07): 0x"));
USB.printHex(sx1272._power);
USB.println();
}
else
{
USB.println(F("Getting Power --> ERROR"));
}
//////////////////////////
// Get CRC mode
//////////////////////////
e = sx1272.getCRC();
if( e == 0 )
{
USB.print(F("Getting CRC \t\t--> OK. "));
USB.print(F("CRC (CRC_ON=1; CRC_OFF=0): "));
USB.println(sx1272._CRC,DEC);
}
else
{
USB.println(F("Getting CRC --> ERROR"));
}
//////////////////////////
// Get Node Address
//////////////////////////
e = sx1272.getNodeAddress();
if( e == 0 )
{
USB.print(F("Getting Node Address \t--> OK. "));
USB.print(F("Node Address is: "));
USB.println(sx1272._nodeAddress,DEC);
}
else
{
USB.println(F("Getting Node Address --> ERROR"));
}
//////////////////////////
// Get Node Address
//////////////////////////
e = sx1272.getMode();
if( e == 0 )
{
USB.print(F("Getting Mode \t\t--> OK. "));
USB.print(F("Bandwidth is (BW_125=0; BW_250=1; BW_500=2): "));
USB.println(sx1272._bandwidth,HEX);
USB.print(F("\t\t\t\tSpreading Factor is: "));
USB.println(sx1272._spreadingFactor,DEC);
USB.print(F("\t\t\t\tCoding Rate is ( CR_5=1 ; CR_6=2; CR_7=3; CR_8=4;): "));
USB.println(sx1272._codingRate,HEX);
}
else
{
USB.println(F("Getting Mode --> ERROR"));
}
USB.println();
delay(5000);
}
Output
H#
SX_00 example
SX1272 module configuration in LoRa, complete example
----------------------------------------
Setting configuration:
----------------------------------------
Setting Channel CH_06_900. state 0
Setting Payload Length to '83'. state 0
Setting Header OFF. state 0
Setting Mode '1'. state 0
Setting Power to 'H'. state 0
Setting CRC OFF. state 0
Setting Node Address to '9'. state 0
Getting Registers: state 0
--> Power is ('M'=0x0F; 'L'=0x00; 'H'=0x07): 0x07
--> Channel is: 0xE5028F
--> CRC (CRC_ON=1; CRC_OFF=0): 0
--> Header (HeaderON=0; HeaderOFF=1): 1
--> Preamble length: 8
--> Payload Length is: 83
--> Node Address is: 9
--> Max current is (mA): 240
--> Temperature is: 14
**********************************
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