Interface & Solved SIM800L GSM Module Problems

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 proper notch direction

4. Connect the Helical or microstrip antenna properly

# The Led blinks every 1 Sec Problem Solved

1. It means the module is successfully powered up but not connected to the network.

2. You must have to ensure that the service provider must support 2G

3. You can use any Service provider except JIO

# The Led continues to blink 7 times Problem Solved

1. You have to use a very short wire to power up the module

2. Re-insert the battery then the problem is solved

# The Led blinks every 3 Sec but it can't receive msg or commands Problem Solved

1. Check the Rx and Tx connections (Rx, Tx)

2. Then upload the basic AT command program.

3. Then you have to delete the all msg via AT command

(i) AT+CMGDA="DEL ALL"

4. After that the module can receive commands and msg.

For detailed information, you can read this blog.

https://lastminuteengineers.com/sim800l-gsm-module-arduino-tutorial/

THANK YOU !!!