Teensy LC Hydralic Panel

[kurt-olsson]

Hi!

Here is my sketch for my Haudralic panel for the Zibo 737 and X-Plane 11 using Teensy LC.


const int PIN_5V_BACKLIGHT = 6;
const int PIN_KORRY_PUSH_TO_TEST = 4;

const int PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_1 = 3;
const int PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_2 = 23;
const int PIN_KORRY_LIGHT_ELEC_OVERHEAT_1 = 22;
const int PIN_KORRY_LIGHT_ELEC_OVERHEAT_2 = 17;
const int PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_1 = 16;
const int PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_2 = 20;

const int PIN_SWITCH_ENGINE_1 = 15;
const int PIN_SWITCH_ENGINE_2 = 19;
const int PIN_SWITCH_ELEC_1 = 18; //Check these, the ground might be touching
const int PIN_SWITCH_ELEC_2 = 21; //check these, the ground might be touching

FlightSimFloat xPlane_light_elec_low_pressure_1;
FlightSimFloat xPlane_light_elec_low_pressure_2;
FlightSimFloat xPlane_light_eng_low_pressure_1;
FlightSimFloat xPlane_light_eng_low_pressure_2;
FlightSimFloat xPlane_light_el_hyd_ovht_1;
FlightSimFloat xPlane_light_el_hyd_ovht_2;

FlightSimFloat xPlane_engine1_pos;
FlightSimFloat xPlane_engine2_pos;
FlightSimFloat xPlane_elec1_pos;
FlightSimFloat xPlane_elec2_pos; 

FlightSimFloat xPlane_panel_brightness_ratio_manual;

void setup() {

  xPlane_engine1_pos = XPlaneRef("laminar/B738/toggle_switch/hydro_pumps1_pos");
  xPlane_engine2_pos = XPlaneRef("laminar/B738/toggle_switch/hydro_pumps2_pos");
  xPlane_elec1_pos = XPlaneRef("laminar/B738/toggle_switch/electric_hydro_pumps1_pos");
  xPlane_elec2_pos = XPlaneRef("laminar/B738/toggle_switch/electric_hydro_pumps2_pos");

  xPlane_light_elec_low_pressure_1 = XPlaneRef("laminar/B738/annunciator/hyd_el_press_a");
  xPlane_light_elec_low_pressure_2 = XPlaneRef("laminar/B738/annunciator/hyd_el_press_b");
  xPlane_light_eng_low_pressure_1 = XPlaneRef("laminar/B738/annunciator/hyd_press_a");
  xPlane_light_eng_low_pressure_2 = XPlaneRef("laminar/B738/annunciator/hyd_press_b");
  xPlane_light_el_hyd_ovht_1 = XPlaneRef("laminar/B738/annunciator/el_hyd_ovht_1");;
  xPlane_light_el_hyd_ovht_2 = XPlaneRef("laminar/B738/annunciator/el_hyd_ovht_2");;

  xPlane_panel_brightness_ratio_manual = XPlaneRef("sim/cockpit2/electrical/panel_brightness_ratio_manual[2]");
   
  pinMode(PIN_5V_BACKLIGHT,OUTPUT);
  pinMode(PIN_KORRY_PUSH_TO_TEST,OUTPUT);
 
  pinMode(PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_1,OUTPUT);
  pinMode(PIN_KORRY_LIGHT_ELEC_OVERHEAT_1,OUTPUT);
  pinMode(PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_2,OUTPUT);
  pinMode(PIN_KORRY_LIGHT_ELEC_OVERHEAT_2,OUTPUT);
  pinMode(PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_1,OUTPUT);
  pinMode(PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_2,OUTPUT);
 
  pinMode(PIN_SWITCH_ENGINE_1,INPUT_PULLUP);
  pinMode(PIN_SWITCH_ENGINE_2,INPUT_PULLUP);
  pinMode(PIN_SWITCH_ELEC_1,INPUT_PULLUP);
  pinMode(PIN_SWITCH_ELEC_2,INPUT_PULLUP);
}

void loop() {
  FlightSim.update();   

  analogWrite(PIN_5V_BACKLIGHT,mapfloat(xPlane_panel_brightness_ratio_manual, 0,1,0,255));
  analogWrite(PIN_KORRY_PUSH_TO_TEST,255);

  analogWrite(PIN_KORRY_LIGHT_ELEC_OVERHEAT_1,mapfloat(xPlane_light_el_hyd_ovht_1,0,1,0,255));
  analogWrite(PIN_KORRY_LIGHT_ELEC_OVERHEAT_2,mapfloat(xPlane_light_el_hyd_ovht_2,0,1,0,255));

  analogWrite(PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_1, mapfloat(xPlane_light_elec_low_pressure_1,0,1,0,255));
  analogWrite(PIN_KORRY_LIGHT_ELEC_LOW_PRESSURE_2, mapfloat(xPlane_light_elec_low_pressure_2,0,1,0,255));

  analogWrite(PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_1, mapfloat(xPlane_light_eng_low_pressure_1,0,1,0,255));
  analogWrite(PIN_KORRY_LIGHT_ENG_LOW_PRESSURE_2, mapfloat(xPlane_light_eng_low_pressure_2,0,1,0,255));

  //Fix why these dont align up after restarting teensy, strange!

  if (digitalRead(PIN_SWITCH_ELEC_1) == HIGH && xPlane_elec1_pos != 1) {
    xPlane_elec1_pos = 1;
  }
  if (digitalRead(PIN_SWITCH_ELEC_1) == LOW && xPlane_elec1_pos != 0) {
    xPlane_elec1_pos = 0;
  }
  if (digitalRead(PIN_SWITCH_ELEC_2) == HIGH && xPlane_elec2_pos != 1) {
    xPlane_elec2_pos = 1;
  }
  if (digitalRead(PIN_SWITCH_ELEC_2) == LOW && xPlane_elec2_pos != 0) {
    xPlane_elec2_pos = 0;
  }
  if (digitalRead(PIN_SWITCH_ENGINE_1) == HIGH && xPlane_engine1_pos != 1) {
    xPlane_engine1_pos = 1;
  }
  if (digitalRead(PIN_SWITCH_ENGINE_1) == LOW && xPlane_engine1_pos != 0) {
    xPlane_engine1_pos = 0;
  }
  if (digitalRead(PIN_SWITCH_ENGINE_2) == LOW && xPlane_engine2_pos != 1) {
    xPlane_engine2_pos = 1;
  }
  if (digitalRead(PIN_SWITCH_ENGINE_2) == HIGH && xPlane_engine2_pos != 0) {
    xPlane_engine2_pos = 0;
  }

  //put a small delay here otherwise the processing is so fast. Lots of read/write that dont have to be so fast.
  delay(20);
}

float mapfloat(float x, float in_min, float in_max, float out_min, float out_max)
{
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

[archen]

Hey Peter,
Looking at your code it looks like you control the brightness of the annunciator with a dataref related to some kind of lightning control knob in the Zibo aircraft. Is that correctly understood?

Are you limited to use the analog pins of the teensy? Are all the annunciators connected through a ULN2803A?

BR.
Anders

Skickat från min SM-G955F via Tapatalk

[kurt-olsson]

Yes, its controlled by the dataref of the backlight.
Advantages with this is that you dont have to link backlight and the know by hardware / cables.
Just torn the know and read the values from the Logic in X-Plane. Great.

You prob know this now,

I am limited when it comes to the large panels, but with our PCB i plan to use double PCB and 4 ULN2803A. Then the pins and ULN2803A should be enough. =)