Member Since: March 16, 2011

Country: United States



Research Engineer


Keio-Cute Center,IDMI Institute

Spoken Languages

English, Hindi, Tamil

Programming Languages

Java, C, C++


National University Of Singapore


Hardware, Software


  • Hello
    I have bought SM5100B-D Gsm module and evaluation board from you.
    I am using the Rxd1 and Txd1 to connect it to the arduino pro mini.
    I also give supply 3.8V to main Vbatt .
    But the Rx and Tx leds of the evaluation board are not on when I connect it to arduino, unlike when
    it is connected to hyperterminal using USB.
    Should I give supply to the Vbat and GND pins next to the Rxd1 and Txd1 pins in the evaluation board?
    If so can I give 5 V supply, because it is not working for 3.8V supply.
    But it is mentioned in the datasheet that max voltage is 4.2V
    What should I do?
    (Please Note I am already connecting main Vbat and GND to the 3.8V supply, I am talking about the additional
    Vbatt and Gnd pins next to the Rxd1 and Txd1 pins)
    Kindly help me out.

  • Hi could anyone tell me if the RFID Reader ID2 is detects RFID Buttons or not

No public wish lists :(