I designed a coding for gas leakage detection and cutoff system. And the coding is provided below #include <Servo.h> int gas; int pos; Servo myservo; void setup() { pinMode(7,INPUT); pinMode(LED_BUILTIN,OUTPUT); myservo.attach(6); Serial.begin(9600); } void loop() { gas = analogRead(A0); …

Welcome to the forum if(gas > 100) { for (pos = 160; pos >= 0; pos -= 1) { myservo.write(pos); delay(15); break; } [image] your_saviour: I expected that the servo motor will rotate from 160 to 0 degree when the gas sensor gives the reading of greater than 100 It …

If remove the break statement the servo motor works as usual and not stops After appying the break statement, the servo motor stops after moving from 160 to 0 degree which is what I want But the actual problem is, the servo motor comes to original position when the reading of gas sensor is less th…

Do you have a pullup or pulldown resistor on your button input, or is it 'wide open' when the button is not pressed?

The image in this post may help: [image] Why a Resistor in Tutorial - Pushbutton LED on/off Project Guidance FYI [SwitchesAndLEDs] And [image]

Only way your code can drive it back, is that it sees pin 7 high.

It's just a normal switch and I think it doesn't have any resistors...

Then you have an open input, and the input level at your digitalRead() will be whatever it chooses to be. You need to either wire the button to ground, and use pinMode(pin,INPUT_PULLUP), and watch for a low pin in your code, OR, you need to provide an external resistor from the input pin to GND. Y…

Ok but as i said earlier... I'm a newbie in this field... Can you make things clearer???

A digital input with nothing attached, which is what your button input is when the button is not pressed, is a very high input impedance antenna, and will receive noise from waving your hand over the circuit, the local radio station, and just about any other significant rubbish out there. To receiv…

Servo motor not working as expected in elseif statement

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camsysca May 12, 2024, 1:05pm 5

The image in this post may help:

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Servo motor not working as expected in elseif statement

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