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IOT-MCU / ESP-12S-A9-A9G-GPRS-Node-v1.0

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Unable to connect to provider #3

Open Haggard opened 4 years ago

Haggard commented 4 years ago

I'm unable to connect to my network provider. AT+CREG? gives a short status 1,1 after that only 1,3 Used provided example (GPS and send sms) but no connection. SIMPin gives status ready after providing PIN READY AT+COPS=? only shows Chinese providers. GPS shows accurate coordinates.

powersupply 2A 5V

I hope you could give me as solution.

IOT-MCU commented 4 years ago

Hi dear， Thanks for contacting with us. 1.What kind of sim card do you use with this board? The A9/A9G just support the Mobile card and Unicom card, does not support telecommunications cards.

  1. A 3.7v Lipo battery must need when use this board. please check again and let me know if you have any questions.