Hi, So, i'm french and have difficult to practice properly the English language. I have receive my GSM SIM900 Shield here ) and have a problem. I testing my shield, (this program is on IDE arduino "/Examples/GSM/Tools/TestModem") Have this result : Starting modem test...ERROR, no modem answer. C…

Problem with my GSM SIM900 shield

bouha0 August 23, 2016, 9:24pm 2

out pin2 ---patch 2----10

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