emaro
Newbie level 6
hello,
I'm working with the GSM/GPRS sim900. I want to interface the module with PC. in this datasheet page 7 & 8 the manufacturer recommanded max3221 i saw too many people saying they used max232 for level adaptation and it worked well for them. i don't understand But the max232 levels is rs232 => TTL/CMOS (5v) and the sim900 cannot communicate with 5V (it communicates with 3V max). how is this possible??? how this could be done without damaging the module ??
Thank you
I'm working with the GSM/GPRS sim900. I want to interface the module with PC. in this datasheet page 7 & 8 the manufacturer recommanded max3221 i saw too many people saying they used max232 for level adaptation and it worked well for them. i don't understand But the max232 levels is rs232 => TTL/CMOS (5v) and the sim900 cannot communicate with 5V (it communicates with 3V max). how is this possible??? how this could be done without damaging the module ??
Thank you