intval2/ino/intval2_buttons/intval2_buttons.ino

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//Intval for pro trinket arduinos
//Using 12vdc motors in place of a stepper
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//L289N HBridge for motor control
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//Microswitch for control
/*
----------------------------------------------------
Microswitch (use INPUT_PULLUP!!)
GND-----\ | \-----PIN
----------------------------------------------------
*/
const int FAST_PWM = 255;
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const int SLOW_PWM = 127;
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/* ------------------------------------------------
* pins
* ------------------------------------------------*/
//Trinket Pro
const int PIN_INDICATOR = 13;
const int PIN_MOTOR_FORWARD = 9;
const int PIN_MOTOR_BACKWARD = 10;
const int PIN_MICRO = 19; //laser cut version
const int BUTTON[4] = {3, 6, 5, 4}; //trigger, direction, speed, delay
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/* ------------------------------------------------
* loop
* ------------------------------------------------*/
const int LOOP_DELAY = 10;
/* ------------------------------------------------
* state
* ------------------------------------------------*/
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volatile int button_state[4] = {1, 1, 1, 1};
volatile long button_time[4] = {0, 0, 0, 0};
volatile long buttontime = 0;
volatile int fwd_speed = FAST_PWM;
volatile int bwd_speed = FAST_PWM;
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volatile boolean sequence = false;
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volatile boolean running = false;
volatile boolean cam_dir = true;
volatile boolean delaying = false;
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volatile int micro_position = 0;
volatile boolean micro_primed = false;
unsigned long timer = 0;
unsigned long frame_start = 0;
unsigned long delay_start = 0;
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volatile int cam_count = 0;
volatile int cam_pos = 0;
volatile long seq_delay = 42;
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void setup () {
Pins_init();
Buttons_init();
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}
void loop () {
timer = millis();
Btn(0);
Btn(1);
Btn(2);
Btn(3);
if (sequence && delaying) {
Watch_delay();
}
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if (running) {
Read_micro();
}
if (!running && !sequence && !delaying){
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delay(LOOP_DELAY);
}
}
void Pins_init () {
pinMode(PIN_MOTOR_FORWARD, OUTPUT);
pinMode(PIN_MOTOR_BACKWARD, OUTPUT);
pinMode(PIN_MICRO, INPUT_PULLUP);
pinMode(PIN_INDICATOR, OUTPUT);
}
void Frame () {
frame_start = millis();
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if (cam_dir) {
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analogWrite(PIN_MOTOR_FORWARD, fwd_speed);
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analogWrite(PIN_MOTOR_BACKWARD, 0);
} else {
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analogWrite(PIN_MOTOR_BACKWARD, bwd_speed);
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analogWrite(PIN_MOTOR_FORWARD, 0);
}
running = true;
micro_primed = false;
}
boolean Read_delay () {
if (fwd_speed == FAST_PWM) {
if (timer - frame_start >= 300) {
return true;
}
} else {
if (timer - frame_start >= 600) {
return true;
}
}
return false;
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}
void Read_micro () {
if (Read_delay()) {
micro_position = digitalRead(PIN_MICRO);
if (micro_position == LOW
&& micro_primed == false) {
micro_primed = true;
} else if (micro_position == HIGH
&& micro_primed == true) {
Stop();
}
delay(2);//smooths out signal
}
}
void Watch_delay () {
if (timer - delay_start >= seq_delay) {
delaying = false;
Frame();
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}
}
void Stop () {
delay(10);
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analogWrite(PIN_MOTOR_FORWARD, 0);
analogWrite(PIN_MOTOR_BACKWARD, 0);
cam_count++;
if (cam_dir) {
cam_pos++;
} else {
cam_pos--;
}
running = false;
micro_primed = false;
if (sequence) {
delaying = true;
delay_start = millis();
}
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}
void Indicator (boolean state) {
if (state) {
digitalWrite(PIN_INDICATOR, HIGH);
} else {
digitalWrite(PIN_INDICATOR, LOW);
}
}
void Buttons_init () {
for (int i = 0; i < 4; i++) {
pinMode(BUTTON[i], INPUT_PULLUP);
}
}
void Btn (int index) {
int val = digitalRead(BUTTON[index]);
if (val != button_state[index]) {
if (val == LOW) { // pressed
button_time[index] = millis();
//button_start(index);
} else if (val == HIGH) { // not pressed
buttontime = millis() - button_time[index];
button_end(index, buttontime);
}
}
button_state[index] = val;
}
/*
* dormant for now
* void button_start (int index) {
if (index == 0) {
}
}*/
void button_end (int index, long buttontime) {
if (index == 0) {
if (buttontime > 1000) {
if (!sequence) {
sequence = true;
Output(2, 75);
Frame();
}
} else {
if (sequence) {
sequence = false;
//Output(2, 75);
} else {
Frame();
}
}
} else if (index == 1) { //set direction
if (buttontime < 1000) {
cam_dir = true;
Output(1, 500);
} else if (buttontime > 1000) {
cam_dir = false;
Output(2, 250);
}
} else if (index == 2) { // set speed
if (buttontime <= 1000) {
fwd_speed = FAST_PWM;
bwd_speed = FAST_PWM;
Output(1, 500);
} else if (buttontime > 1000) {
fwd_speed = SLOW_PWM;
bwd_speed = SLOW_PWM;
Output(2, 250);
}
} else if (index == 3) { //set delay
if (buttontime < 42) {
seq_delay = 42;
Output(1, 500);
} else {
seq_delay = buttontime;
Output(2, 250);
}
}
buttontime = 0;
}
void Output (int number, int len) {
for (int i = 0; i < number; i++) {
Indicator(true);
delay(len);
Indicator(false);
delay(42);
}
}