Discussion in "Project Help" started by    Shezo    Apr 9, 2010.
Thu Apr 15 2010, 12:46 pm
#11
for me it work absolutely fine..i had 2 option before..either to use another UC or to use UC wic can have 2 serial ports...
Thu Apr 15 2010, 04:41 pm
#12
great.. really its a great circuit thanks for sharing. it might help many other users on forum. i have tagged i too..
Thu Apr 15 2010, 09:33 pm
#13
Hey

Shezo can you please tell me why has the pin 4 of gsm modems db9 connector been connected to pin 2 of max 232?
Mon Apr 19 2010, 03:23 am
#14
Thats because you are Transmitting and Recieving at that DB9 connector for GSM..so u constantly giving it 5V from pin2..in case of GPS its not used because its only transmitting the data..
Mon Apr 19 2010, 01:16 pm
#15
Do any body have software MAPOBJECTS 2 i need it urgently for Mapping
Tue Sep 21 2010, 05:10 am
#16
But what will happen if the data arrives from both the sources simultaneously ?
Tue Sep 21 2010, 08:07 pm
#17
for that purpose there is Nand gate !! we cannot deal wid simultaneous data !!
Wed Sep 22 2010, 12:37 am
#18
GPS data is repeated every second so if you miss one packet doesnt matter it will come again next second but for GSM its the other case, when you send a command you get a reply in return, so its a lock step way of communication as soon as you get the response switch back to GPS uart.

Get Social

Information

Powered by e107 Forum System

Downloads

Comments

Michailqfh
Fri Mar 29 2024, 01:53 am
Bobbyerilar
Thu Mar 28 2024, 08:08 am
pb58
Thu Mar 28 2024, 05:54 am
Clarazkafup
Thu Mar 28 2024, 02:24 am
Walterkic
Thu Mar 28 2024, 01:19 am
Davidusawn
Wed Mar 27 2024, 08:30 pm
Richardsop
Tue Mar 26 2024, 10:33 pm
Stevencog
Tue Mar 26 2024, 04:26 pm