How I can connect module GSM SIM800L?

by Àbdó Bougaà   Last Updated April 15, 2019 11:01 AM - source

I thought a gsm module, and I wanna connect it with Arduino but I have a problem.

I linked gsm SIM800L with regular LM2596 12v 2A I changed tension to 5v, So far the gsm is working. but if I connect TX_ARDUINO with RX_GSM the module entre in the loop of the restart. the picture explain the montage enter image description here

Tags : arduino


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