Make LGT-92-LI not transmit if it has no GPS fix?

f1pfc · July 10, 2020, 2:59pm

Hello, all of you,
Is it possible to prohibit the emission in case of no GPS fix ?

Joseph.

descartes · July 10, 2020, 3:02pm

Yes, write the code so if the status is no fix, it doesn’t send …

If you tell us which node you have, we can be more specific

yannik · July 11, 2020, 11:33pm

He wrote in the title that it’s a dragino lgt-92-li.

cslorabox · July 12, 2020, 4:07pm

It looks like the logic you need to alter is probably that associated with this part of their open sources:

github.com

dragino/LGT-92_-LoRa_GPS_Tracker/blob/master/Projects/Multi/Applications/LoRa/DRAGINO-LRWAN(AT)/src/main.c#L410


		send_moin();
				
		if(is_time_to_IWDG_Refresh==1)
		{
			is_time_to_IWDG_Refresh=0;
			IWDG_Refresh();
		}	
						
		lora_send();

		if((motion_flags==1)&&(mpuint_flags==1))
		{
			motion_flags=0;			
			start_time=HW_RTC_GetTimerValue();			
			APP_TX_DUTYCYCLE=Server_TX_DUTYCYCLE;			
			TimerInit( &TxTimer, OnTxTimerEvent );
			gps.latitude = 0;
			gps.longitude = 0;
			lora_state_GPS_Send();      			
		  lora_send();
			TimerSetValue( &TxTimer,  APP_TX_DUTYCYCLE);

You may end up needing to modify the called function and not just this part of main()

f1pfc · July 12, 2020, 4:49pm

Thanks for your answer.

Joseph.