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Recent content by priya123

  1. P

    stepping down from 6.3V to 5V DC

    Thank you for all your valuable suggestions.. I will try all the possible solutions and get back to you.
  2. P

    stepping down from 6.3V to 5V DC

    Hello I am new to hardware and my ques may seem stupid. I apologise for that. I wanted to step down 6.3V to 5V and I did that using a 1.75 Mohm resistor. Although when I connect it to the module ( DRM -which requires 5v) the voltage drops to around 0.3V Is it because the resistor is consuming...
  3. P

    Interfacing GSM and RFID with Arduino

    Hi. sorry for the late reply. Was into other project. As you know I am interfacing my SM5100b gsm module with arduino pro mini. As you suggested I tried connecting the module with the other system and it is responding. I also tried connecting the arduino and hyperterminal together, but the...
  4. P

    Interfacing GSM and RFID with Arduino

    thanks a lot. I would try it out and get back to you
  5. P

    Interfacing GSM and RFID with Arduino

    I was trying out the solution you had asked me to. I can do it only during my office hours. I figured out that now the hyperterminal itself is not responding then going to the circuit would be secondary, that is why I did not post the circuit. Com10 is correct but the hyperterminal is not...
  6. P

    Interfacing GSM and RFID with Arduino

    hi. I tried connecting the gsm module to the hyperterminal again, this time I am not gettin any response when I type AT or anything else. I have checked the comport well its COM10.
  7. P

    Interfacing GSM and RFID with Arduino

    yes i tried another code- char a[5]="AT"; void setup() { Serial.begin(9600); for(int i=0; i < 2; i++) { delay(100); Serial.write(a[i]); delay(100); } Serial.write(0x0a); delay(100); Serial.write("GSM-Module"); delay(100); Serial.println(0X0d); Serial.print(Serial.read()); } void loop(){} but...
  8. P

    Interfacing GSM and RFID with Arduino

    oh i tried it the other way round too.. tx-rx rx-tx gnd-gnd but stil no use
  9. P

    Interfacing GSM and RFID with Arduino

    hey my GSM module is working with the hyper terminal, and it works.. When I connected it to the arduino pro mini and gave the following connections- supply,gnd, rx-rx,tx-tx, it is not working. my simple code - char a[30]="AT+CMGR=1"; char b[40]; int i; int j; void setup() { Serial.begin(115200)...
  10. P

    Interfacing GSM and RFID with Arduino

    i jus have to read the tag and send the ID to the GSM module using the Arduino.
  11. P

    Interfacing GSM and RFID with Arduino

    Hi This is my code.. I am not able to read the RFID tag. I am not very sure of the address, length,checksum and reset reader as I already said. #include <Wire.h> #include <EEPROM.h> #define MAX_NO_CARDS 3 byte tag[4]; void setup() { Wire.begin(); Serial.begin(9600)...
  12. P

    Interfacing GSM and RFID with Arduino

    Hello I had written my first code in arduino using the Wire Library. Could you kindly tell me where do I find the address of my RFID ( ID2); reset reader ; length and the cheksum as in the code: eg. Wire.beginTransmission(0x42); // the RFID reader's address is 42 Wire.send(0x01)...
  13. P

    Interfacing GSM and RFID with Arduino

    Hi I have one more doubt as this is the first time I m working with GSM Modules. The schematic of the MC37i seems very complicated. As I will be requiring only SMS features of GSM Module, I can just avoid the other connections. But the charging of the GSM module also looks a little complicated...
  14. P

    Interfacing GSM and RFID with Arduino

    Thank you for the prompt reply. It was of great help. I would take your advise and get back to you incase of any doubts.
  15. P

    Interfacing GSM and RFID with Arduino

    Hi I am interfacing Arduino pro mini with MC37i Gsm module. Could you kindly tel me where the connections rts,dcd,cts,dtr,dsr of the gsm will be connected in arduino. Thank you
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