Un any més, començo amb l'especial Festival de Cinema Fantàstic de Sitges. Esperem que aquest cop no se'm dilati tant la publicació, però no puc prometre res.
Previsió de pel·lícules:
Divendres 03:
Faig una petita pausa en les publicacions sobre arduino per comentar una sèrie de comandes que he fet servir força últimament.
#!/bin/bash if [ $# -eq 0 ] then echo "Sintaxis: $0 <arxiu pdf origen> [arxiu pdf desti] [nombre de fulls per plec]" exit fi echo "Convertint $1" rm /tmp/duplex.ps rm /tmp/duplex_a5.ps pdftops $1 /tmp/duplex.ps if [ $# -eq 3 ] then echo "plecs de $3 fulls" pags=$(($3*4)) psbook -s$pags /tmp/duplex.ps | psnup -pa4 -2 > /tmp/duplex_a5.ps else psbook /tmp/duplex.ps | psnup -pa4 -2 > /tmp/duplex_a5.ps fi if [ $# -gt 1 ] then a=$2 else a=duplex_$1 fi echo "El nou arxiu es diu $a" ps2pdf /tmp/duplex_a5.ps $a rm /tmp/duplex.ps rm /tmp/duplex_a5.ps
./plec.sh arxiu_origen.pdf
./plec.sh arxiu_origen.pdf arxiu_desti.pdf
./plec.sh arxiu_origen.pdf arxiu_desti.pdf 8
A l'article anterior vaig afegir un potenciòmetre per indicar el tempo. El problema és que no hi havia cap indicador visual del tempo actual. Per aquest motiu he decidit afegir un led de dos colors per indicar-ho.
/* Translate HC-SR04 Ping distance sensor into buzzer tone with a potentiometer tempo Author: Ferran Recio This code is part of the project 8bit pseudo-theremin (http://laveudet.blogspot.com.es/2014/07/pseudo-theremin-8bits-part-0.html) Code based on: HC-SR04 Ping distance code by ScottC here: http://arduinobasics.blogspot.com.au/2012/11/arduinobasics-hc-sr04-ultrasonic-sensor.html buzzer tutorial here: http://arduino.cc/en/Tutorial/Tone on 04 Jul 2014. */ #define echoPin 7 // Echo Pin #define trigPin 8 // Trigger Pin #define LEDPin 13 // Onboard LED int potenPid = A1; int buzzerPin = 10; int buzztone = 0; //buzzer tone range int maxbuzztone = 2500;//4978; int minbuzztone = 1; int maximumRange = 30; // Maximum range needed int minimumRange = 1; // Minimum range needed long duration, distance; // Duration used to calculate distance //marcador de tempo int tempo[] = {2,3};//leds int currled = 0; int delayval = 25; void setup() { Serial.begin (9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(LEDPin, OUTPUT); // Use LED indicator (if required) pinMode(buzzerPin, OUTPUT); // sets the pin as output int i; for (i = 0; i < 2; i = i + 1) { pinMode(tempo[i], OUTPUT); } } void loop() { /* The following trigPin/echoPin cycle is used to determine the distance of the nearest object by bouncing soundwaves off of it. */ digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); //Calculate the distance (in cm) based on the speed of sound. distance = duration/58.2; if (distance >= maximumRange || distance <= minimumRange){ //Serial.println("-1"); digitalWrite(LEDPin, LOW); noTone(buzzerPin); } else { digitalWrite(LEDPin, HIGH); buzztone = map(distance, minimumRange, maximumRange, minbuzztone, maxbuzztone); buzztone = maxbuzztone - buzztone; tone(buzzerPin,buzztone); } //tempo if (currled==0) { currled = 1; digitalWrite(tempo[0], HIGH); digitalWrite(tempo[1], LOW); } else { currled = 0; digitalWrite(tempo[0], LOW); digitalWrite(tempo[1], HIGH); } //pillem el delay delayval = analogRead(potenPid); delay(delayval+1); }
