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Interface & Solved SIM800L GSM Module Problems

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If you face any kind of SIM800L GSM Module Problem  then this post is for you and you get every possible solution for this module ------------------------------------------------------ ------------------------------------------------------ ------------ #Pin Configurations SIM800L is a GSM Module that is used for mobile communication generally # It has a total of 12 Pins. [6Pins each side] # It Supports only 2G and works with any SIM except JIO. # It works on Separate 3.7v at least 2000mah battery. # During the call it consumes approx 2A so power is a vital part of this module.   # Problems ------------ 1. The Led doesn't blink  2.  The Led blinks every 1 Second 3. The Led continues to blink 7 times then off  4. The Led blinks in every 3sec but the module does not receive any message # The Led doesn't blink Problem Solved 1. At first connect a separate Power supply of 3.7 volt 2000mah 2. Check the voltage of the VCC and GND pin using a multimeter 3. Insert the SIM with the prope