Le forum LOCODUINO est consacré aux discussions ayant trait à l'utilisation de l'Arduino dans les automatismes et les animations pour le train miniature. Nous avons eu récemment quelques inscriptions de personnes ayant des projets plus généraux mais surtout inapplicables au train miniature. Si votre projet ou vos questions ne concernent pas le modélisme ferroviaire, ne vous inscrivez pas, vous perdriez votre temps et nous aussi.
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/********************
* Creates a minimum DCC command station from a potentiometer connected to analog pin 0,
* and a button connected to ground on one end and digital pin 4 on the other end. See this link
* http://www.arduino.cc/en/Tutorial/AnalogInput
* The DCC waveform is output on Pin 9, and is suitable for connection to an LMD18200-based booster directly,
* or to a single-ended-to-differential driver, to connect with most other kinds of boosters.
* The Differential DCC waveform is output on Pins 9 and 10.
********************/
#include <DCCPacket.h>
#include <DCCPacketQueue.h>
#include <DCCPacketScheduler.h>
DCCPacketScheduler dps;
unsigned int analog_value;
char speed_byte, old_speed = 0;
byte count = 0;
byte prev_state = 1;
byte F0 = 0;
void setup() {
Serial.begin(115200);
dps.setup();
//set up button on pin 4
pinMode(4, INPUT);
digitalWrite(4, HIGH); //activate built-in pull-up resistor
}
void loop() {
//handle reading button, controls F0
byte button_state = digitalRead(4); //high == not pushed; low == pushed
if(button_state && (button_state != prev_state))
{
//toggle!
F0 ^= 1;
Serial.println(F0,BIN);
dps.setFunctions0to4(3,DCC_SHORT_ADDRESS,F0);
}
prev_state = button_state;
// vitesse ======================================
//handle reading throttle
analog_value = analogRead(A1);
speed_byte = (analog_value >> 2)-127 ; //divide by four to take a 0-1023 range number and make it 1-126 range.
if(speed_byte != old_speed)
{
if(speed_byte == 0) //this would be treated as an e-stop!
{
if(old_speed > 0) speed_byte = 1;
else speed_byte = -1;
}
Serial.print("analog = ");
Serial.println(analog_value, DEC);
Serial.print("digital = ");
Serial.println(speed_byte, DEC);
dps.setSpeed128(3,DCC_SHORT_ADDRESS,speed_byte);
old_speed = speed_byte;
}
dps.update();
++count;
} 
j'aime pas) .