Beginning of an LCC Arduino Node to control a turnout that might be thrown with a Tortoise switch machine:
// We are going to start off with a system that will toggle a relay (or H-bridge)
// from two separate buttons or inputs. Only because we need this circuit a little
// sooner, like tomorrow!
#define VERSION "TortoiseTurnoutWith2Buttons 0.01, pre CAN, 2016.08.12;23:44"
#define TURNOUT_PIN 3
// LED_PIN until CAN takes MOSI and MISO
#define LED_PIN 13
#define BUTTON_PIN_1 A0
#define BUTTON_PIN_2 A1
// one pin driving a relay to reverse the polarity on a Tortoise or likewise turnout
class TortoiseTurnout {
const bool TURNOUT_DEBUG = true;
byte turnoutPin;
byte turnoutState; // 0 off/low/closed, 1 on/high/thrown
long _now;
void output() {
if ( TURNOUT_DEBUG ) {
Serial.print( "turnout state ");
Serial.println( turnoutState );
} // if
digitalWrite( turnoutPin, turnoutState );
digitalWrite( LED_PIN, turnoutState );
} // output
public:
TortoiseTurnout( int pin ) {
turnoutPin = pin;
turnoutState = LOW; // off/low/closed
} // Constructor TortoiseTurnout( int )
void closeSwitch() {
turnoutState = LOW;
output();
} // closeSwitch
void throwSwitch() {
turnoutState = HIGH;
output();
} // throwSwitch
void toggleSwitch() {
if ( turnoutState == HIGH )
turnoutState = LOW;
else
turnoutState = HIGH;
output();
} // toggleSwitch
void setupPin() {
pinMode( turnoutPin, OUTPUT );
pinMode( LED_PIN, OUTPUT );
turnoutState = LOW; // off
output();
_now = millis();
} // setupPin
void update() {
_now = millis();
} // update
}; // class TortoiseTurnout
//////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////
// one pin driving a relay to reverse the polarity on a Tortoise or likewise turnout
class Button {
const bool BUTTON_DEBUG = true;
byte buttonPin;
byte buttonState; // 0 off/low, 1 on/high/pressed
long _now;
public:
Button( int pin ) {
buttonPin = pin;
buttonState = LOW; // off/low/closed
} // Constructor TortoiseTurnout( int )
bool input() {
byte newState = digitalRead( buttonPin );
byte pressed = 0;
if ( newState == LOW ) {
buttonState = HIGH;
pressed = 1;
if ( BUTTON_DEBUG ) {
Serial.print( "button state [");
Serial.print( buttonPin );
Serial.print( "] ");
Serial.println( buttonState );
} // if BUTTON_DEBUG
} else {
return pressed == 1;
} // if newState == LOW
while ( newState == LOW ) {
delay( 100 ); // blocking here, debounce for now
newState = digitalRead( buttonPin );
} // while
buttonState = LOW;
if ( BUTTON_DEBUG ) {
Serial.print( "button state [");
Serial.print( buttonPin );
Serial.print( "] ");
Serial.println( buttonState );
} // if
return pressed == 1;
} // input
void setupPin() {
pinMode( buttonPin, INPUT_PULLUP );
buttonState = HIGH; // off/not pressed
_now = millis();
} // setupPin
void update() {
_now = millis();
} // update
}; // class Button
//////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////
TortoiseTurnout turn1( TURNOUT_PIN );
Button butt1( BUTTON_PIN_1 );
Button butt2( BUTTON_PIN_2 );
void setup() {
Serial.begin( 115200 );
Serial.println( VERSION );
turn1.setupPin();
butt1.setupPin();
butt2.setupPin();
turn1.toggleSwitch();
delay( 1000 );
turn1.toggleSwitch();
delay( 1000 );
turn1.toggleSwitch();
delay( 1000 );
turn1.toggleSwitch();
delay( 1000 );
} // setup
void loop() {
if ( butt1.input() )
turn1.toggleSwitch();
if ( butt2.input() )
turn1.toggleSwitch();
} // loop
//////////////////////////////////// END of CODE /////////////////////////////////// |