Kind of off topic but I figured i would show you this video. It is an example of using colors to detect position.

Hello, I would like to know if it is possible to have the Arduino recognize different sounds and react to them. I would be using a surround sound system to play the sounds off of a cd to start with. So I would just use one set of wires that would normally be sent to a speaker. What hardware would I need to use to "teach" the Arduino to recognize a sound(S) and react to it? Also how hard would the programing be?

Thanks!

I would use this sensor…

http://www.robotshop.com/productinfo.aspx?pc=RB-See-186&lang=en-US

http://www.robotshop.com/content/PDF/grove-moisture-sensor-sen92355p.pdf

Hello, I need help asap because I have a competition tomorrow morning. I have a light sensor and when nothing is over it the analog value  is about 110. When something crosses over it the reading jumps to about 1020. I got my Arduino set up today and the value was  1021-1022 and when something crosses over it the value stays at 1022. I have no idea why and I will have only 30min tomorrow to fix it. I have checked all the wires and they seem to be in place. And all the other sensors are working one of which is an identical sensor. Any suggestions you have for me would be greatly appreciated. Also the program did not change and the lighting seems to about the same as my room.

Link to sensor
https://www.sparkfun.com/products/9453

I found out what it looks like...Serial.println();

Thanks!

How would that look? Serial.println; ?

Thanks!

Is their anyway to put spaces or a new line in the monitor each time the Arduino reports a value to the computer?


Thanks!

Your code did not really produce any different results.


Do you have another idea?


Thanks for the help,
Drew

Sorry for the lack of info.

The analog value is what changes.
I did not expect any certain value but I wanted it to stay consistent based on what the sensor sees.

For the first 10 seconds or so the readings are all over the place then it starts to become somewhat consistent (+/- 10).

If i power it off and turn it on a few seconds later the values it was reading before I shut it off is what the lcd displays…  It does not have that time period where the values are completely unreliable.

Below is a link of it in action. Their is one sensor on each side... where the arm stops.



Here is the code for just the light sensors…

Code:

#include <SerialLCD.h>
#if ARDUINO < 100
#include <NewSoftSerial.h> //this is a must
#else
#include <SoftwareSerial.h>
#endif
SerialLCD slcd(11,12);

// Serial LCD setup


int sensorPin = A1  ;
int long sensorValue = 0;

void setup() {
slcd.begin();

}

void loop() {
 
  slcd.setCursor(0, 1);
  sensorValue = analogRead(sensorPin);
  slcd.print(sensorValue, DEC);

   delay(100);
   
     slcd.clear(); 
 
}

 

Hello I have two sensors from spark fun which slowly change their values for no reason. The change is minimal, but I was wondering why that happens and how to prevent the change in value.

Thanks

https://www.sparkfun.com/products/9453

Not if you want the up and down to have two points of motion. This Arm has six servos so I assume their is more then one servo controlling up and down.

Some times I can't get pictures to load on the forum. If thats the case IM me and I will give you my email.

I have the code mostly working. Could you send me a picture of how you built your robot. It depends how I finish up the code. 

Also I have added lots of comments so you can understand how it works. That way you can explain everything if your teacher asks!

I have 2 midterm tests this week so I don't know if I will be able to wright up an example for you this week. Unless somebody gets to it faster I should have something during spring break (next week).

Look into the robofest competition thats what got me started!