Where to buy specific Sim900A module chandigarh/Delhi

[Deepak Bansal]

1. I want to buy the specific SIM900A module. Benefit is it had additional TTL output because of which I can directly connect rx,tx & GND from my 3.3V microcontroller & can commincate.

 

1. Just standard 3 pins from MCU & I am done. rx, Tx & Gnd

 

2. Board dimesnions are 90mm x 60mm.

 

3. Image of top & bottom are below:

 

 

 

 

[AJISH ALFRED]

I think most of the boards have TTL communication also, don’t think you will have difficulty to find it out from the local market.

[prashant]

Hi, Yes  I think that every module have DB9 connector,From that you can use the rx,tx,gnd pin. And you can get that from any electronic shop. 

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