Please can you help me.
I have a problem when I run my code the servo motor move little bit without I touch nothing yet (any buttons).
How can I do when I run the code the servo motor doesn't move. But the servo motor can move only when I push the right or left button .
Thank you very much
here is my code:
<#include <Servo.h>
int pos=0;
Servo MonServo;
void setup()
{
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
MonServo.attach(6);
MonServo.write(0);
}
void loop ()
{
if (digitalRead(3)==LOW) {
MonServo.write(pos);
pos+=1;
delay(100);
if (pos>180) {pos=180;}
}
if (digitalRead(2)==LOW) {
MonServo.write(pos);
pos-=1;
delay(100);
if (pos<0) {pos=0;}
}
}
Do not try to power motors or servos from the Arduino 5V output, as that can damage the Arduino or cause it to malfunction. Ignore any tutorials that recommend otherwise.
A 4xAA battery pack will power 1 or 2 small servos like SG-90. Don't forget to connect the grounds.
Yes exactly,
As soon as I aunch the code the servi motor twitch just littlbit about 1 or 2 degres and stop.
Then if I push one button right or left it move like I want.
By presetting the position, then attaching, you ensure that the servo doesn't attempt to go to a 'garbage' position(random memory value), followed almost instantly by a move to zero. Probably wouldn't see it with real hardware, but simulators have a way of exposing 'edges' like this.
This happens with real hardware, too, by the way, and scales with the amount of code between the attach statements and the first write statements for each servo. For example, code with several servo attach statements, followed by some analog manipulation to read initial settings, followed by servo writes to set first positions, will likely have servos twitching all over.
Why? The default position within Servo.h for any servo being attached is 0(but it isn't explicitly set as that...*); if you want your initial servo position to be non-zero, you have to do a write before the attach, to establish that non-zero setting.
and consequently, if you 'reset' your Arduino, without a power cycle, you may find a non-zero value for the first servo position, even if you don't write one. You can do a Servo.read() to determine if that's happening, or just do the initial Servo.write().
So for the simulation it's not a problem for me but I hopes it does not same in real.
This evening I will the circuit in real then I reply you if it's same in real.
Simulators like Tinkercad don't always work the same as real hardware. You can't burnout a simulator if you make a short circuit and they will often still work OK even if you exceed the voltage and current ratings of the Arduino.
Now, including carrying over the actual physical position if you restart the simulation; so, if your code has the servo at 175, you stop and restart the simulation, and set the position to 0, you can expect the servo to do exactly that. Very useful, as it is exactly how the hardware will perform - for better or worse.
The default angle when first connected is set at 90 by the Servo library, not some 'garbage' position. Writing an angle to be servo before attaching it overrides the default setting
.