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pic to gsm schematic
argz, i dont kn0w what to do.
i tried evrything but it seem it doesnt work at all.
whats wrong with my approach when in fact
my gsm module works on hyperterminal
my pic module works on hyperterminal also
and the pic+gsm module combination works on proteus software...
gsm modem circuit diagram
if i use TTL logic do i need to make the power suply the same?
i mean if my gsm module have 5v power supply then my pic module should have 5v also?
if in any case if my volategs for the modules are different what would be the problems that may i encounter?
thnx...
auto swap tx/rx circuit
oh i notice just now,
remember the schematic diagram of the gsm modem mr emery?
it's included in the kit right and it has a max3222 inside
so its wrong for me to use max232 in my pic circuit right?
all this time im using two max232 O_O
like this
pic curcuit...
autobauding 16f
its in their schematic diagram, the one i bought. BenQ M22 Modem only uses TX RX and GND to communicate. i tested it in the hypertermanal and yes it can send SMS by using only that pin. the MODULE is design by the manufacturer, its has pcb layout already, so changing its pin...
pic c code for gsm
sir emery the schematic i provid is the schematic diagram of the benq m22 module i bought @ e-gizmo.
so deciding from its hardware connection, also me ignored the cts because
even the gsm module are connected internally with just TX and RX and GND.
so applying the cts rts...
to write gsm program you must
in my circuit sir, i only connected in the DB9F is the TX RX and GND
but inside the connecting wires for the hyperterminal i just dont know but
im using a regular FEMALE/MALE RS232 connector, the one used in printers etc.
so may circuit(RX,TX,GND) <----- M/F...
pic modem gsm cts rts
sir i found out that the rts and cts of the modem are not connected to the serial cable features of the GSM module. ive look into its schematic diagram try to look at it.
ive worked with ur connection and it still doesnt work fine. T.T
m22 pic rx tx
thnx sir for the pdf u made.
heres the AT commands sir emery
i find it in the older post in this forum
and sir try to look at page 18-23 of this m22 design guide.
should i also short the dsr and dtr?
pic to gsm connection
hi mr emery
your block diagram is for serial cable?
do i need to use max232 to connect the serial cable to pic? or direct ahead?
my m22 benq module has a dual feature of TTL and rs232 serial cable, so which u are prefer?
by the way to hav u an idea, here wat we did
we...
pic gsm interfacing
@penuy_balut
wat do u mean by "compilers can generate asm listing"?
u mean a translator by some sort? like ASM to C?
@emery
sry for using assembly, its because our school taught us only about assembly when using PIC
we never had an experience or getting a view of using...
pic gsm
i had a problem poh
i made a module wherein it purpose is to communicate with GSM module
we tried the module using hyperterminal and it works properly
but when we try to connect it to gsm module, it seems that the command or ascii code that we were sending doesnt
recieve by the gsm...
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