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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 01-10-2014, 01:07 AM   #1
robot
There are now 2 carseats!
 
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Pedal Dance Device

I could build this and I might. It's just not something I'd sell because of the liability...

-Wire microcontroller to the brake pedal switch, ignition, and the ebrake switch (brake switches would use 12v relays of course).
-Wire it to an on-off switch for convenience.
-Program the microcontroller to switch the brake and ebrake switches on in the correct order a few seconds after ignition.
-?
-profit

You really don't need a microcontroller to do this btw. I'm sure their are cheaper ways, they are probably just beyond my expertise.

Arduino c/c++ that should be close:
Code:
const int ebrakepin = 8;
const int brakepin = 9;

void setup() {
  pinMode(ebrakepin, OUTPUT);
  pinMode(brakepin, OUTPUT);
  delay(5000);
  digitalWrite(ebrakepin, LOW);
  digitalWrite(brakepin, LOW);
}

void loop(){
  digitalWrite(ebrakepin, HIGH);
  delay(10);
  digitalWrite(ebrakepin, LOW);
  delay(10);
  digitalWrite(ebrakepin, HIGH);
  delay(10);
  digitalWrite(ebrakepin, LOW);
  delay(10);
  digitalWrite(ebrakepin, HIGH);
  
  delay(100);
  
  digitalWrite(brakepin, HIGH);
  delay(10);
  digitalWrite(brakepin, LOW);
  delay(10);
  digitalWrite(brakepin, HIGH);
  delay(10);
  digitalWrite(brakepin, LOW);
  delay(10);
  digitalWrite(brakepin, HIGH);
  
  delay(100);
  
  digitalWrite(ebrakepin, LOW);
  delay(10);
  digitalWrite(ebrakepin, HIGH);
  delay(10);
  digitalWrite(ebrakepin, LOW);
  delay(10);
  digitalWrite(ebrakepin, HIGH);
  delay(10);
  digitalWrite(ebrakepin, LOW);
  delay(10);
  digitalWrite(ebrakepin, HIGH);
  
  delay(100);
  
  digitalWrite(brakepin, LOW);
  delay(10);
  digitalWrite(brakepin, HIGH);
  delay(10);
  digitalWrite(brakepin, LOW);
  delay(10);
  digitalWrite(brakepin, HIGH);
  
  delay(100);
  digitalWrite(ebrakepin,LOW);
  digitalWrite(brakepin,LOW);
}

Last edited by robot; 01-10-2014 at 01:21 AM.
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Old 01-10-2014, 08:53 AM   #2
mla163
Overthinking it
 
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Doesn't the car have to be warm? That may add an element of difficulty
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Old 01-10-2014, 09:14 AM   #3
robot
There are now 2 carseats!
 
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Quote:
Originally Posted by mla163 View Post
Doesn't the car have to be warm? That may add an element of difficulty
True. I would imagine id just do that part myself.
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Old 01-10-2014, 09:26 AM   #4
7thgear
i'm sorry, what?
 
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