Problem in Interfacing SIM900A

[hemnath]

Hi,
I have bought SIM900A development board. It has SIM900A, MAX232, DB9 Connector and LM317 regulator to provide 4.1V output.

how to test SIM900A with PC without micro-controller?

Shall I connect directly to PC from DB9 connector?

Thanks in advance.

 

[horace1]

if you have a PC with a serial port you can connect the DB9 to it (may need a suitable cable) otherwise you could use a USB-RS232 converter cable
https://www.ftdichip.com/Products/Cables/USBRS232.htm

 

[balajii desingu]

No need of micro controller to test SIM900A, connect it to pc through DB9 and test it by AT commands.

 

[hemnath]

Thanks guys. Let me check it and if problem persists, ill post it here.