Hello,
I am working with the example code and have successfully run the code on my CubeCell. The device did join my TTN gateway, and is transmitting data every 15 seconds. However, I am wanting to put this unit into sleep mode and only transmit every 15 minutes. I found more example code, however, when I integrated the two examples, I am not getting any data to the gateway.
#include "LoRaWan_APP.h"
#include "Arduino.h"
#define timetosleep 20000
#define timetowake 20000
static TimerEvent_t sleep;
static TimerEvent_t wakeup;
uint8_t lowpower=1;
/*
* set LoraWan_RGB to Active,the RGB active in loraWan
* RGB red means sending;
* RGB purple means joined done;
* RGB blue means RxWindow1;
* RGB yellow means RxWindow2;
* RGB green means received done;
*/
void OnSleep()
{
Serial.printf("into lowpower mode, %d ms later wake up.\r\n",timetowake);
lowpower=1;
//timetosleep ms later wake up;
TimerSetValue( &wakeup, timetowake );
TimerStart( &wakeup );
}
void OnWakeup()
{
Serial.printf("wake up, %d ms later into lowpower mode.\r\n",timetosleep);
lowpower=0;
//timetosleep ms later into lowpower mode;
TimerSetValue( &sleep, timetosleep );
TimerStart( &sleep );
}
/*LoraWan Class*/
DeviceClass_t CLASS=LORAWAN_CLASS;
/*OTAA or ABP*/
bool OVER_THE_AIR_ACTIVATION = LORAWAN_NETMODE;
/*ADR enable*/
bool LORAWAN_ADR_ON = LORAWAN_ADR;
/* set LORAWAN_Net_Reserve ON, the node could save the network info to flash, when node reset not need to join again */
bool KeepNet = LORAWAN_Net_Reserve;
/*LoraWan REGION*/
LoRaMacRegion_t REGION = ACTIVE_REGION;
/* Indicates if the node is sending confirmed or unconfirmed messages */
bool IsTxConfirmed = true;
/*!
* Number of trials to transmit the frame, if the LoRaMAC layer did not
* receive an acknowledgment. The MAC performs a datarate adaptation,
* according to the LoRaWAN Specification V1.0.2, chapter 18.4, according
* to the following table:
*
* Transmission nb | Data Rate
* ----------------|-----------
* 1 (first) | DR
* 2 | DR
* 3 | max(DR-1,0)
* 4 | max(DR-1,0)
* 5 | max(DR-2,0)
* 6 | max(DR-2,0)
* 7 | max(DR-3,0)
* 8 | max(DR-3,0)
*
* Note, that if NbTrials is set to 1 or 2, the MAC will not decrease
* the datarate, in case the LoRaMAC layer did not receive an acknowledgment
*/
uint8_t ConfirmedNbTrials = 8;
/* Application port */
uint8_t AppPort = 2;
/*the application data transmission duty cycle. value in [ms].*/
uint32_t APP_TX_DUTYCYCLE = 15000;
/* Prepares the payload of the frame */
static void PrepareTxFrame( uint8_t port )
{
AppDataSize = 4;//AppDataSize max value is 64
AppData[0] = 0x00;
AppData[1] = 0x01;
AppData[2] = 0x02;
AppData[3] = 0x03;
}
void setup() {
BoardInitMcu();
Serial.begin(115200);
BoardInitMcu();
Radio.Sleep( );
TimerInit( &sleep, OnSleep );
TimerInit( &wakeup, OnWakeup );
OnSleep();
#if(AT_SUPPORT)
Enable_AT();
#endif
DeviceState = DEVICE_STATE_INIT;
LoRaWAN.Ifskipjoin();
}
void loop(){
if(lowpower){
//note that LowPower_Handler() run six times the mcu into lowpower mode;
LowPower_Handler();
}
switch( DeviceState )
{
case DEVICE_STATE_INIT:
{
#if(AT_SUPPORT)
getDevParam();
#endif
printDevParam();
Serial.printf("LoRaWan Class%X start! \r\n",CLASS+10);
LoRaWAN.Init(CLASS,REGION);
DeviceState = DEVICE_STATE_JOIN;
break;
}
case DEVICE_STATE_JOIN:
{
LoRaWAN.Join();
break;
}
case DEVICE_STATE_SEND:
{
PrepareTxFrame( AppPort );
LoRaWAN.Send();
DeviceState = DEVICE_STATE_CYCLE;
break;
}
case DEVICE_STATE_CYCLE:
{
// Schedule next packet transmission
TxDutyCycleTime = APP_TX_DUTYCYCLE + randr( 0, APP_TX_DUTYCYCLE_RND );
LoRaWAN.Cycle(TxDutyCycleTime);
DeviceState = DEVICE_STATE_SLEEP;
break;
}
case DEVICE_STATE_SLEEP:
{
LoRaWAN.Sleep();
break;
}
default:
{
DeviceState = DEVICE_STATE_INIT;
break;
}
}
}