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[on:]

Well today is the day I'm going to begin building and automation system for my room. I'm going to start by controlling some leds. I have a two pin thermistor and need to know how to use it with the arduino. the thermistor is out of an old power supply. I'm also going to create a gui on the computer to control the stuff manually if needed. I'm going to start purchasing more stuff as soon as possible. I'll keep you guys posted

[Reply #1 on:]

Search the forum for voltage divider - you should find examples you can use to wire up your thermister.

[Reply #2 on:]

ok thanks. here's the code I wrote for controlling the led's over serial.

int incomingByte;

void setup(){
  Serial.begin(9600);
  
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
}

void loop(){
  if (Serial.available() > 0) {
     incomingByte = Serial.read();
     if (incomingByte == '1') {
      digitalWrite(13, HIGH);
    } 
    
    if (incomingByte == '2') {
      digitalWrite(13, LOW);
    
    if (Serial.available() > 0) {
      incomingByte = Serial.read();
      if (incomingByte == '3') {
      digitalWrite(12, HIGH);
    } 
    
  }
    
    
    if (incomingByte == '4') {
      digitalWrite(12, LOW);
      
      incomingByte = Serial.read();
      if (incomingByte =='5'){
        digitalWrite(11, HIGH);
        
      }
    }
    
    if (incomingByte == '6');
     digitalWrite(11, LOW);
     
      if (Serial.available() > 0) {
      incomingByte = Serial.read();
      if (incomingByte == '7') {
      digitalWrite(10, HIGH);
      
      }
      }
      
      if (incomingByte =='8');
       digitalWrite(10, LOW);
       
       
        if (Serial.available() > 0) {
      incomingByte = Serial.read();
      if (incomingByte == '9') {
      digitalWrite(9, HIGH);
      
      }
        }
      
      
      if (incomingByte =='10');
       digitalWrite(9, LOW);
       
       
        if (Serial.available() > 0) {
      incomingByte = Serial.read();
      if (incomingByte == '11') {
      digitalWrite(8, HIGH);
      
      }
        }
      
      
      if (incomingByte =='12');
       digitalWrite(8, LOW);
       
    }
  }
}

       
       
       
       
       
        

[Reply #3 on:]

Dear bdragon123

I'm very interesting in arduino, and I just want to make a little project for the first time in arduino to control a few LED over local network, so
could you help me about:
1. what kind of arduino that I have to buy and other support thing to make my project run?
2. could you provide me information likes schematic and codes for my project?

note: I don't know everything about this project and I hope you give me some (hope more) information what kind of knowledge that I have to know . . .
thanks before 

[Reply #4 on:]

The code is a bit of a dog's breakfast with too many nested ifs for me to follow. ALso if (incomingByte == '11') doesn't make much sense.

Can we go back to basics?

What exactly is coming down the serial line? ASCII from a human typing on a keyboard, binary from a GUI?

______
Rob

[Reply #5 on:]

I'm very interesting in arduino, and I just want to make a little project for the first time in arduino to control a few LED over local network, so
could you help me about:
1. what kind of arduino that I have to buy and other support thing to make my project run?
2. could you provide me information likes schematic and codes for my project?

A basic starting point for an "ethernet" network would be to purchase an arduino and a wiznet w5100 based ethernet shield.

[Reply #6 on:]

Why w5100 and not a Ethernet shield?

[Reply #7 on:]

He means you should get the official ethernet shield (which is based on the w5100 chip). Some of the other ethernet shields use a different chip and are (arguably) harder to program.