SIM928A GSM/GPS shield from open electronics.org


hi,

has used sim928a shield openelectronics.org? gsm_gprslibrary_gps sketch isn't working. gsm sketches working fine gps sketch not. failing @ gps.attachgps(). i'm using sketches here: https://github.com/marcomartines/gsm-gprs-gps-shield , using external 12v power supply 2a output. output arduino serial monitor, , picture of setup posted below. appreciated!

gsm shield testing.
att: ok
ric:
ok

db:else
att: ok
ric:
ok

db:else
att: ok
ric:
ok

db:else
att: ok
ric:
ok

db:correct br
att: ok
ric:
ok

att: ok
ric:
ok

att: ok
ric: ate0

ok

att: ok
ric:
ok

att: ok
ric:
ok

att: ok
ric:
ok

att: ok
ric:
ok

att: +cpms:
ric:
+cpms: 2,30,2,30,2,30

ok

att: ok
ric:
ok

att: shut ok
ric:
shut ok

status=ready
att: ok
ric:
ok

att: ok
ric:
ok

att: ok
ric:
+creg: 0,1

ok

att: ok
ric:
error

att: ok
ric:
error

att: ok
ric:
error

att: ok
ric:
error

att: ok
ric:
error

status=error
att: ok
ric:
error

att: unknown
ric:
error

att: unknown
ric:
error

att: not
ric:
error

att: 2d
ric:
error

att: 2d
ric:
error

att: 3d
ric:
error

att: 3d
ric:
error

att: ok
ric:
error

att: ok
ric:
error

this resolved!

the sim928a requires different @ commands sim908 in order extract gps data. had modify underlying gsm libraries in order arduino sketch work correctly sim928a


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > SIM928A GSM/GPS shield from open electronics.org


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