Microcontroller › AVR › sim900 › Hi Sandip,What normally
August 6, 2014 at 4:00 am
#11982
AJISH ALFRED
Participant
Hi Sandip,
What normally happens is that some module have max232 ic built in it and some don’t. If there is any then you have to add one in your circuit. Please check this and check if there is any other mistakes in the hardware. The code posted in this website are all working and you can find a working video also.