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smf05c sim300
This error occurs, that need to add the number of SMS server.
1. at+csca?
Reply: +CSCA: "+573103150030",145
OK
tip +57 it is area code.
2. AT+CSCA="+573103150030"
Reply: OK
3. AT+CMGS="3007857907" Do not include area code. (+57)
> Text
Reply: +CMGS: 57...
sim300d hardware
I have not been able to resolve the problem yet.
Spanish:
Aun no he podido resolver el problema. Estoy trabajando en otras cosas. No he tenido tiempo. Espero resolverlo luego.
work sim300d
I work with a 6-pin connector.
and what you propose, I do not understand very well, but to increase the value of series resistance of 50 ohms to 100 ohms for any 3 volt cards these stop working.
the idea of external regulation is feasible, but the goal is simply to work the...
sim300 not communicate proper
My sim300/304z module does not work with 1.8 volts simcards, not Energizer.
The sim300 module work fine with sim-cards of 2.8 - 3.0 vol. But don´t work with the sim-cards of 1,8 vol.
My test board has all fine. It has the capacitors of 0.22 uF, also the TVS and...
sim300d evb schematic
wasi_22382:
Thanks, your answer is very useful because some SIM-CARDs of 3 Vol not working and now working very well. But my problem with the sim-cards for 1.8 still persists.
I would appreciate your help in this matter.
is esd really a problem
I have a problem similar to yours.
The sim300 module work fine with sim-cards of 2.8 - 3.0 vol. But don´t work with the sim-cards of 1,8 vol.
My test board has all fine. It has the capacitor of 0.22 uF, also the TVS and the resitor pull up between VDD_SIM and DATA_SIM...
sim 3000 gsm module
The sim300 module work fine with sim-cards of 2.8 - 3.0 vol. But don´t work with the sim-cards of 1,8 vol.
My test board has all fine. It has the capacitors of 0.22 uF, also the TVS and the resitor pull up between VDD_SIM and DATA_SIM (10K).
I do not see the problem.
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