i am trying to connect the gsm module (SIM300DZ) with raspberry pi 3
i did hardware connection like this
GSM PI 3
Tx ----------- Rx
Rx------------ Tx
Ground-----Ground
BAT-----------5v pin
i have tried different codes searched on internet to send sms and cant get a module to working.
anyone help please for the code.
and is there is a way for serial ports checking whether gsm module is actually connected/working or not.
Thanks in advance !