Interfacing GSM modem with 80s52

hi,

I have a gsm modem named WISMO. I am attaching the picture of it.

I tested the modem with PC and its working fine. When i tested with PC i DID NOT USE

MAX 232. Now i need to interface it to the controller should i use max232??

Pls help

YES!

Thanks for your kind reply .. It worked with controller. I am able to send messages according to my requirement.. Thanks for your support:)

Hi Prajwal,

Can we know why you choose Wismo model?
Just for curiosity i am asking!!

@kirangowle

To be frank even i don't know I bought this modem from bangalore. when i bought

this i dint had any idea regarding GSM modems. I bought this one year ago.. The shop owner said its a

very good product so i bought it, and YES what he said is right its excellent modem and works

flawlessly!! It has a very good external antenna that makes communication much easier without any

problems associated with signal.

and If I remember correctly, then you can even program this modem uses a Wavecom modem (now Sierra Wireless). they provide OpenAT suite with which you can directly program into your modem and no need of any other microcontroller. See if you can get OpenAT Suite from Sierra wireless website.

PS: I am not sure if they still support old model modems.

@Ajay Bhargav

Thanks for the information. I'll try searching and reply u sir