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You will get some variation between units. If they show exactly the same value, you are just lucky.
yes horizontal and wooden surface, without much atrict/friction, just normal floor.
The wheels, just normal rubber wheels, that you find in most robots, the plataform itself gonna be a cube with less than 50cm.

EDIT: its only a plataform that moves forward, backwards, or sides, tranposrting a bucket on top.
You said drag, and now you mention wheels.  They are different methods
of locomtion!

Some complete and careful description of your setup please, or we
will be at cross-purposes - its more fun for us to solve your problem
than to have to drag information out bit-by-bit from you.  Don't be vague,
be precise.
Yes. There is no voltage regulation in that circuit.
Deutsch / Re: Werte aus SD-Karte einlese...
Last post by Serenifly - Today at 04:15 pm
Das oben ist auch nur Prinzip-Code. Praktischer ist es wahrscheinlich wenn man das einmal in setup() von der SD Karte liest, in ein Array schreibt und danach die Daten nur noch aus dem Array liest.
Your code is riddled with delay() calls.  Whilst the delay is occurring no other code runs so it will carry on doing its own thing such as rotating left or right for 1500 + 900 + 900 milliSeconds before reacting to the nearby object and going idle.  What you need to do is move a little, check for an object, move a little, check for an object and so on

You say that you are using continuous rotation servos.  Do rotateServo.write(95); and rotateServo.write(88); really make the servo turn in opposite directions ?

Why keep attaching and detaching the servo in the move functions ?
Motors, Mechanics, and Power / Re: Servo problems
Last post by MarkT - Today at 04:13 pm
Most servos are rated for 4.8 to 6V or sometimes 7.2V.  9V is too much to expect
reliable behaviour.

Never a good idea to hot-plug an inductive load - power down and then change the wiring.
Looks like there are solder bridges on that IC. There should be no solder bridges on a properly assembled board. Can you provide a closeup pic of just the w5100?

That is a w5100, correct?

Project Guidance / Re: Actuator for etch tank.
Last post by Fulliautomatix - Today at 04:12 pm
use a few peristaltic pumps to fill and drain the tank
That's an idea,  I can see where you're coming from, but I can't help feeling that at some point the different liquids might get contaminated, some of the chemicals are pretty nasty so I think I'd prefer to move the board instead.
Fran├žais / Re: Programmer atmega328
Last post by Polua - Today at 04:12 pm
Est ce que cela va et pour les condensateur il faut quoi
A while loop would do it neater but there are more fundamental problems with the code.  In this section you print 3 variables but you never update them by reading the sensors.
Code: [Select]
                             #if Celcius
                                lcd.setCursor(0, 0);
                                lcd.setCursor(0, 0);
                                lcd.setCursor(0, 1);
                                lcd.setCursor(0, 0);
                                lcd.print("Light Outside");
                                lcd.setCursor(0, 1);
                                lcd.setCursor(0, 0);
                                lcd.print("Light Indoors");
                                lcd.setCursor(0, 1);
                                goto start;

How do I update them without double declaring them? I still want them in the #if Farenheit part.
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