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/*
* AutoPano1D, arduino sketch to take panorama photo driving a stepper motor and a wireless shutter
* Copyright (C) 2018 Ludovic Pouzenc <ludovic@pouzenc.fr>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
// Tested on an Arduino Nano with IDE 1.8.5
#include <Stepper.h>
#define SERIAL_TRACE Serial.println(__FUNCTION__)
// Config
const int pictureCount = 12;
const int motorStepsPerRevolution = 200;
const int cameraStepsPerRevolution = 1000; // include external mechanic ratio
const int motorSpeed = 30; // rpm
const int cameraStabilizeDelay = 1000; // ms
const int cameraTakeDelay = 2000; // ms
// Pinout
const int buttonPin = 2;
const int shutterPin = 12;
Stepper myStepper(motorSpeed, 8, 9, 10, 11);
void setup() {
pinMode(LED_BUILTIN, OUTPUT);
pinMode(buttonPin, INPUT_PULLUP);
pinMode(shutterPin, INPUT); // Yes high-Z first, see takePic()
myStepper.setSpeed(motorSpeed);
Serial.begin(9600); // bauds
ack();
}
void ack() {
SERIAL_TRACE;
digitalWrite(LED_BUILTIN, HIGH);
delay(100);
digitalWrite(LED_BUILTIN, LOW);
}
void loop() {
if ( digitalRead(buttonPin) == LOW) {
ack();
takePano();
ack();
}
}
void takePano() {
SERIAL_TRACE;
for ( int i=0; i<pictureCount; i++ ) {
takePic();
rotate();
}
}
void takePic() {
SERIAL_TRACE;
// Draw current to ground for 50ms on shutterPin then return in high-Z state
digitalWrite(shutterPin, LOW);
pinMode(shutterPin, OUTPUT);
delay(50);
pinMode(shutterPin, INPUT);
// Wait for the pic
delay(cameraTakeDelay);
}
void rotate() {
SERIAL_TRACE;
myStepper.step(-cameraStepsPerRevolution/pictureCount);
delay(cameraStabilizeDelay);
}
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