Arduino sim800l Gsm 4×4 keypad mobile
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materials for this project
#1#lm2596
#2#sim800l
#3#arduino
#4#4×4 keypad
#5#16*2 lcd
download code here
https://drive.google.com/file/d/1-MQ2myZuveoLDaVHT-1FMSW8nxMXtjPZ/view?usp=drivesdk
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#arduino #altium #sim800l
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GSM