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Topic: SIM800L recognize SIM but QSQ = 0,0 - PLEASE HELP (Read 297 times) previous topic - next topic

tthomas_s

Hello there!

I connected my SIM 800L modul with my Arduino UNO (SoftwareSerial etc.), AT Commands work. I can read for example phonebook entries form the inserted SIM card. But it will not connect to any network.
AT+CSQ ->CSQ = 0,0 but if the SIM ist not inserted QSQ is between 15 and 25.
Can somebody help me? I didnt't find anything on google.

I use this gsm module:

https://www.ebay.de/itm/SIM800L-GSM-GPRS-Modul-incl-Antenne-und-Adapter-Quad-Band/162573577886?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Tank you guys!

(I understand answers in german too)

SupArdu

hi,
I have no experience with SIM800L but only with SIM900. Both are controlled with At commands. Maybe there are some specific AT commands for SIM800L and SIM900, but connecting to a GSM network is a standard task and should be the same commands.

To work with SIM900 there are libraries available which should be usable also for SIM800L. Google will find such code.
-------------------
have success
SupArdu

KASSIMSAMJI

Expert To Be: Machine Learning And Computer/Machine Vision (ML/CV/MV)

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