Show Posts
Pages: [1] 2
1  Using Arduino / Networking, Protocols, and Devices / Re: GSM Modem Help Please! on: December 09, 2013, 11:57:43 pm
Here's another one which seems to be a better GSM modem because it says they have got datasheets and other imp infos unlike the ones that I put in link earlier.Please also review this one!
2  Using Arduino / Networking, Protocols, and Devices / GSM Modem Help Please! on: December 09, 2013, 11:54:11 pm
This is the product (GSM modem) that I'm planning to buy.
LINK- http://www.vegarobokit.com/index.php?route=product/product&keyword=gsm&category_id=0&product_id=482
OR
http://www.vegarobokit.com/index.php?route=product/product&keyword=gsm&category_id=0&product_id=677

Which of these is better and what's the difference b/w them?
Though it says a RS232 connector, it has got 5v, gnd, Rx,Tx(TTL) connectors on the pcb.So can I use it with the arduino using those TTL connectors or would I need a RS 232 ro TTL convertor Like this - http://www.ebay.in/itm/281173582097?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

PLS Also state regarding how to use it in brief if POSSIBLE.
3  Using Arduino / Installation & Troubleshooting / Using the USB to Serial Communication Board on: November 08, 2013, 07:38:47 am
Ok I want to make a project(not important here), but if I use my Aduino UNO clone here in India, the judges and people will think that I'm using some readymade product of some brand with the covers removed, exposing the Circuit. Infact many won't know what Arduino is or even what a Micro-controller is  and what it does.So I decided to make my Arduino a stand alone one and read This Tutorialorial - http://arduino.cc/en/Main/Standalone

I don't want it to be able to connect to a computer (once I have burned the programme using my board).So can I omit out the USB to Serial Comm Board?

Also I want to use an LCD but not a 16pin one as it consumes away almost 10 pins.Is there any low pin LCD like one which uses I2C or so.(ok even if it uses 3 or 4 of my Arduino pins).
4  Using Arduino / Programming Questions / What does this mean? on: January 13, 2013, 10:23:47 am
digitalWrite(13, on ? HIGH : LOW);

It was in the IRrelay example.What does the ? do and the : with both LOW & HIGH.
5  Using Arduino / Project Guidance / Re: How to reconfigure IR led pin? on: January 12, 2013, 10:02:15 am
Would you plz explain bcz i'm a learner.
6  Using Arduino / Microcontrollers / Re: Make my ATmega 328 a stand-alone micro controller? on: January 12, 2013, 06:40:11 am
Then what's the use of an external 16mhz if an internal 8mhz would do by itself?
7  Using Arduino / Project Guidance / How to reconfigure IR led pin? on: January 12, 2013, 06:36:18 am
Hello guys.I'm having InduinoX clone of arduino.It has an inbuilt IR led to pin D14.But all examples using IR send are configured to pin 3.How do I reconfigure the pins?
8  Using Arduino / Microcontrollers / Re: Make my ATmega 328 a stand-alone micro controller? on: January 07, 2013, 06:00:24 am
If I program it again, will my program work properly?
9  Using Arduino / Microcontrollers / Re: Make my ATmega 328 a stand-alone micro controller? on: January 07, 2013, 05:32:53 am
If I insert it into my arduino board and burn bootloader with internal crystal 8Mhz, will the program presently in it be deleted?, or will the program(the above program) run properly?, or What will happen?
10  Using Arduino / Microcontrollers / Make my ATmega 328 a stand-alone micro controller? on: January 06, 2013, 10:01:54 pm
For my project I wanted to make my 328 a stand alone one.I did not have the 16Mhz crystal, so i connected the ones connected to arduino board's 28DIP microcontroller base(pin 9 and 10).I have powered the board and also took the 5v from the board(without microcontroller) to power up the breadboard microcontroller.I initially had only one microcontroller and I programmed it keeping it on the board.After the program was uploaded, I removed it and put it on breadboard.I have connected even the reset,RX,Tx pins to the board fromy my breadboard.But it wont work.Is it the crystal or any other problem.If I burn its bootloader again selecting its internal 8Mhz crystal, will it work.If yes then how to do it, and what will happen to program which is uploaded in the 328.
Here's my code
Code:
#define HighLevel 2
#define LowLevel 4
#define Output 3
#include <LiquidCrystal.h>
LiquidCrystal lcd(8,9,10,11,12,13);

  
 void setup() {
   pinMode(HighLevel, INPUT_PULLUP);
   pinMode(LowLevel, INPUT_PULLUP);
   pinMode(Output, OUTPUT);
       lcd.begin(16, 2);
   lcd.setCursor(0, 0);
   lcd.print("WELCOME TO");
   lcd.setCursor(0, 1);
   lcd.print("PRATIBA KARANJI");
   delay(5000);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("PROGRAMMED BY");
   lcd.setCursor(0, 1);
   lcd.print("KATHIR");
   delay(5000);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("PROJECT DETAILS");
      delay(4200);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("MICRO CONTROLLER");
   lcd.setCursor(0, 1);
   lcd.print("ATmega 328");
   delay(4000);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("Rs.80");
        delay(3800);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("LCD DISPLAY");
   lcd.setCursor(0, 1);
   lcd.print("16x2 CHARACTERS");
   delay(4000);
   lcd.clear();
   lcd.setCursor(0, 0);
   lcd.print("Rs.90");
      delay(3800);
      lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("RELAY");
   lcd.setCursor(0, 1);
   lcd.print("10 Amp - DPDT");
   delay(4000);  
    lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("Rs.100");
    delay(3800);
   lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("EXTRAS");
   lcd.setCursor(0, 1);
   lcd.print("Wires, etc...");
   delay(4000);
 lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("Rs.35");
      delay(3800);
  lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("TOTAL COST");
   lcd.setCursor(0, 1);
   lcd.print("OF PROJECT");
   delay(4000);
 lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print("80+90+100+35");
   lcd.setCursor(0, 1);
   lcd.print("Rs.305");
   delay(5000);    
  
  
 }
  
 void loop() {
int Hval = digitalRead(HighLevel);
int Lval = digitalRead(LowLevel);


if (Lval == LOW && Hval == HIGH) {
 digitalWrite(Output, HIGH);
   lcd.setCursor(0, 1);
  lcd.print("PUMP STATUS- ON");
  
}
else if (Lval == LOW && Hval == LOW) {
  digitalWrite(Output, LOW);
    lcd.setCursor(0, 1);
  lcd.print("PUMP STATUS-OFF");
}
else if (Lval == HIGH && Hval == HIGH) {
  digitalWrite(Output , HIGH);
    lcd.setCursor(0, 1);
  lcd.print("PUMP STATUS- ON");
}
 if (Lval == HIGH && Hval == HIGH) {
   lcd.setCursor(0, 0);
  lcd.print("WATER LEVEL- MIN");
 }
 else if (Lval == LOW ) {
    lcd.setCursor(0, 0);
  lcd.print("WATER LEVEL-HIGH");
 }
 else if (Hval == LOW ) {
   lcd.setCursor(0, 0);
  lcd.print("WATER LEVEL- LOW");
 }
 }


Moderator edit: [code] [/code] tags added.
11  Using Arduino / Programming Questions / Re: What is wrong with my code? on: January 04, 2013, 08:25:33 am
How do I prevent it?
12  Using Arduino / Programming Questions / What is wrong with my code? on: January 04, 2013, 08:09:26 am
This is my code-
Quote
#define Led 13
#define wire 2

void setup() {
  pinMode(wire, INPUT);
  pinMode(Led, OUTPUT);
  
}

void loop() {
  
  if (digitalRead(wire) == HIGH) {
    digitalWrite(Led , HIGH);
  }
  if (digitalRead(wire) == LOW) {
    digitalWrite(Led , LOW);
  }
  if (digitalRead(wire) != LOW && digitalRead(wire)!= HIGH) {
    digitalWrite(Led , LOW);
  }
}


I don't know whether there's a problem with my  code or my wire.When I insert the wire into pin 2, the LED starts flickering.When I touch the exposed or even insulated part of the wire the LED switches on.When I connect pin2 to 5v supply and remove it even after the removal, LED stays on for few seconds.What's the problem?
13  Development / Other Hardware Development / Re: What do these pins stand for? on: January 02, 2013, 09:07:40 am
Can you give more info on both plz?
14  Using Arduino / General Electronics / Make my arduino project a stand-alone one. on: January 02, 2013, 09:05:41 am
For example if I want to create  project of the most basic blinking led but I want it to work without arduino.I know that i can do it with an 555 timer IC.But it will only work for small projects.Some say that I can buy an atmega 168 or any such microcontroller and program it through arduino for the project needed.
15  Development / Other Hardware Development / What do these pins stand for? on: January 02, 2013, 08:32:51 am
What do the pins below ICSP and pins to the left of pins 10,11,12,13 mean and what's their use?I have the Indian clone of arduino named InduinoX.This board might not be good compared to UNO Rev3.
Here's the img URL: http://downloads.simplelabs.co.in/InduinoX_Pin_Mappings.png
Pages: [1] 2