Arduino pro micro turning off itself

Projects General Guidance
1

Hello to all, I have a problem, I am building a eBrake (handbrake for pc racing simulators)

I am using a Arduino Pro Micro ATmega32U4 5V 16MHz, connected to a slider potentiometer 10k, 45mm.

Here is a link to the video tutorial of my project (LINK)

Ok, the problem is when I am not pulling the handbrake, and the potentiometer slider is on the extreme 0, the device disconect from the Pc. i ts like if it goes to stand by mode or something like that,and as soon i use the handbrake it awakes, but if I am on a game that isnt good enough, i need it on always while playing. I have to say when it is connected the Green LED and one Red LED are on, but as soon as a pull the handbrake (so the slider potentiometer moves) the lights goes brighter, as if they get more power.

here you can see the sketch:

// Analog eBrake-Handbrake
// PIN A0 to 10k pot output - Throttle Axis
// Use with Arduino ProMicro.
// Tested and working in DiRT RALLY + ASSETTO CORSA
// by AMSTUDIO
// 20.1.2017

#include <Joystick.h>

void setup()

{pinMode(A0, INPUT); 
   Joystick.begin();}

const int pinToButtonMap = A0;

void loop()

{int pot = analogRead(A0);
int mapped = map(pot,0,1023,0,255);
{Joystick.setThrottle(mapped);}}

Also the only thing I can see I did different from the video tutorial is that when soldering cables I made a mistake and used different hole named GND, not sure if that makes any difference.

800×866 226 KB

I solded the first top left GND and in the video is used the second on the left. Not sure if that is the problem or not, but I do not want to change the wire if is not needed.

Thanks a lot in advance, and if need any more info or have a question please let me know and I will do my best to answer it. Bye.

2

My guess is that the slide pot is wired wrong and at the 0 end of the travel it is shorting +5V to Ground. Does the Arduino have a power LED to let you know if power is good?

3

You have to use the GND on the other side of the Arduino Micro.
If the throttle range is all down one end then swap the VCC / A0 wires.

Good Luck!

4

You have to use the GND on the other side of the Arduino Micro.

Nonsense, all the grounds are common.

5

Indeed. At least that means we have some common ground here.

That said, OP, please post your circuit diagram.