projects:c-info-wand [c-base coredump wiki]

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====== c-info-wand ======

{{:projects:c-info-wall.jpg?200|}}

===== elektronic =====

  * connected launchpad
  * 3 RGB LED stripes (common +)
  * MOSFETs: IRL540N
  * Schaltung ist wie beim Ingress-Table: https://github.com/c-base/ingress-table#led-driver-circuit
  * PWM-PINs in RGB-Dreier-Gruppen:
    * erste Gruppe: PM_3, PD_1, PD_0
    * zweite Gruppe: PL_4, PL_5, PM_1
    * dritte Gruppe: PM_7, PA_7, PM_6
  * Pinout siehe: http://energia.nu/img/EK-TM4C1294XL.jpg
===== code =====

  * Sourcecode uses energia: http://energia.nu/
  * Sourcecode on github: https://gist.github.com/uwekamper/ebefbdc992248407a1e7

<code>
/*
  Fade for c-info wall at c-base.
  Works with TI's connected launchpad and the energia.nu IDE.
*/

// Apparently the preprocessor variables B0 and B1 are already taken.
// Therefore we use the prefix CBASE

#define CBASER0 PM_3
#define CBASEG0 PD_1
#define CBASEB0 PD_0

#define CBASER1 PL_4
#define CBASEG1 PL_5
#define CBASEB1 PM_1

#define CBASER2 PM_7
#define CBASEG2 PA_7
#define CBASEB2 PM_6

int brightness = 50;    // how bright the LED is
int fadeAmount = 1;    // how many points to fade the LED by

void setup()  { 
  pinMode(CBASER0, OUTPUT);
  pinMode(CBASEG0, OUTPUT);
  pinMode(CBASEB0, OUTPUT);
  pinMode(CBASER1, OUTPUT);
  pinMode(CBASEG1, OUTPUT);
  pinMode(CBASEB1, OUTPUT);
  pinMode(CBASER2, OUTPUT);
  pinMode(CBASEG2, OUTPUT);
  pinMode(CBASEB2, OUTPUT);
} 

void loop() {
  if (brightness < 90) {
    fadeAmount = 1;
  }
  
  if (brightness >= 255) {
    fadeAmount = -1;
  }
  
  // There was some problem with the upper-most LED stripe.
  // That is why we just set this one to full brightness forever.
  analogWrite(CBASER0, 255);
  analogWrite(CBASEG0, 255);
  analogWrite(CBASEB0, 255);
  
  // The rest of the wall is pulsing.
  analogWrite(CBASER1, brightness);
  analogWrite(CBASEG1, brightness);
  analogWrite(CBASEB1, brightness);
  analogWrite(CBASER2, brightness);
  analogWrite(CBASEG2, brightness);
  analogWrite(CBASEB2, brightness);
  delay(10);
  
  brightness = brightness + fadeAmount;
}
</code>
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