some queries on Wifi module

Discussion in 'Embedded Systems and Microcontrollers' started by sudil99, May 14, 2012.

  1. sudil99

    Thread Starter New Member

    Mar 9, 2012
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    My project needs to read some analog inputs and transfer it to computer via Wifi.
    I searched for devices for that application and found RN-171

    Now, I have some queries which I couldnt understand from the datasheet.

    1. How do I connect this device to my computer to upload my program onto it?

    2. It is said that it needs TX and RX connection. Does that mean it requires an external microcontroller to run it?

    3. Is there any better alternative?
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    This is not a programmable device. You send and receive serial data to/from it from some other programmable device such as a microcontroller or a PC.

    Yes. You might use the serial port from a PC but you also need a RS-232 converter. Sparkfun also sells these.

    Unknown, your requirements for "better" are not stated. It's price seems inline with other modules I have seen.
     
  3. sudil99

    Thread Starter New Member

    Mar 9, 2012
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    Thankx for reply.
    one more quesiton:
    I need my device to be portable but it should be transferring the data it reads from ADC to computer in realtime via Wifi. So I can't connect it to PC with RS232 while operating. In that case how does it work?
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    For the portable side you'd need a microcontroller reading the sensor's output via an ADC, collecting the data and shoving it thru the wifi interface board.

    Then the home base PC needs it's own wifi to receive the data.

    Having never done a wifi app I can't get any more detailed then that.
     
  5. sudil99

    Thread Starter New Member

    Mar 9, 2012
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    this device already has 8 ADCs. So, I was just wondering if I need a microcontroller or not.
     
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