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- Committer: edam
- Date: 2012-02-29 21:56:32 UTC
- Revision ID: edam@waxworlds.org-20120229215632-kypb9491vx7bicef
moved some stuf round, created a re-usable pool of message buffers, genericised "modes" for messages
- files added:
- arduino.mk
- project
- test/fan-test
- test/fan-test/Makefile
- test/led-test
- test/led-test/Makefile
- test/phantom-button-presses
- test/phantom-button-presses/Makefile
- files removed:
- COPYING
- files renamed:
- Notes => notes
- propeller-clock/ => src/
- propeller-clock/propeller-clock.pde => src/propeller-clock.ino
- propeller-clock/utility/ => src/util/
- fan-test/ => test/
- fan-test/fan-test.pde => test/fan-test/fan-test.ino
- files modified:
- .bzrignore
added
removed
src/propeller-clock.ino
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/* -*- mode: c++; compile-command: "BOARD=pro5v make"; -*- */
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/*
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* propeller-clock.pde
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* propeller-clock.ino
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*
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* Copyright (C) 2011 Tim Marston <edam@waxworlds.org>
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* Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
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*
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* This file is part of propeller-clock (hereafter referred to as "this
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* program"). See http://ed.am/software/arduino/propeller-clock for more
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* program"). See http://ed.am/dev/software/arduino/propeller-clock for more
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* information.
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*
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* This program is free software: you can redistribute it and/or modify
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/******************************************************************************
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For a schematic, see propeller-clock.sch.
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Set up as follows:
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- a PC fan is wired up to the 12V supply.
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- the fan's SENSE (tachiometer) pin is connected to pin 2 on the
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arduino.
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- the pins 4 to 13 on the arduino should directly drive an LED (the
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LED on pin 4 is in the centre of the clock face and the LED on pin
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13 is at the outside.
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- if a longer hand (and a larger clock face) is desired, pin 4 can
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be used to indirectly drive (via a MOSFET) multiple LEDs which
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turn on and off in unison in the centre of the clock.
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- a button should be attached to pin 3 that grounds it when pressed.
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Implementation details:
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- the timing of the drawing of the clock face is recalculated with
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every rotation of the propeller (for maximum update speed).
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- pressing the button cycles between display modes
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- holding down the button for 2 seconds enters "set time" mode. In
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this mode, the fan must be held still and the LEDs will indicate
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what number is being entered for each time digit. Pressing the
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button increments the current digit. Holding it down moves to the
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next digit (or leaves "set time" mode when there are no more). In
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order, the digits (with accepted values) are: hours-tens (0 to 2),
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hours-ones (0 to 9), minutes-tens (0 to 5), minutes-ones (0 to 9).
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Set up:
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* a PC fan is wired up to a 12V power supply
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* the fan's SENSE (tachiometer) pin connected to pin 2 on the
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arduino.
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* the pins 4 to 13 on the arduino should directly drive an LED (the
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LED on pin 4 is in the centre of the clock face and the LED on pin
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13 is at the outside.
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* if a longer hand (and a larger clock face) is desired, pin 4 can be
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used to indirectly drive a transistor which in turn drives several
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LEDs that turn on anf off in unison in the centre of the clock.
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* a button should be attached to pin 3 that grounds it when pressed.
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* A DS1307 remote clock is connected via I2C on analog pins 4 and 5.
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Implementation details:
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* for a schematic, see ../project/propeller-clock.sch.
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* the timing of the drawing of the clock face is recalculated with
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every rotation of the propeller.
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* a PC fan actually sends 2 tachiometer pulses per revolution, so the
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software skips every other one. This means that the clock may
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appear upside-down if started with the propeller in the wrong
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position. You will need to experiment to dicsover the position that
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the propeller must be in when starting the clock.
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Usage instructions:
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* pressing the button cycles between variations of the current
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display mode.
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* pressing and holding the button for a second cycles between display
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modes (e.g., analogue and digital).
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* pressing and holding the button for 5 seconds enters "time set"
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mode. In this mode, the following applies:
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- the field that is being set flashes
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- pressing the button increments the field currently being set
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- pressing and holding the button for a second cycles through the
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fields that can be set
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- pressing and holding the button for 5 seconds sets the time and
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exits "time set" mode
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******************************************************************************/
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#include <Bounce.h>
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#include "config.h"
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#include "display.h"
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#include "button.h"
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#include "time.h"
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#include "switcher_major_mode.h"
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#include "drawer.h"
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//_____________________________________________________________________________
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// data
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static unsigned long segment_step_sub_step = 0;
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static unsigned long segment_step_sub = 0;
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// flag to indicate that the drawing mode should be cycled to the next one
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static bool inc_draw_mode = false;
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// a bounce-managed button
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static Bounce button( 3, 5 );
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// the time
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static int time_hours = 0;
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static int time_minutes = 0;
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static int time_seconds = 0;
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// number of segments in a full display (rotation) is 60 (one per
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// second) times the desired number of sub-divisions of a second
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#define NUM_SECOND_SEGMENTS 5
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#define NUM_SEGMENTS ( 60 * NUM_SECOND_SEGMENTS )
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// the button
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static Button button( 3 );
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// major mode
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static int major_mode = 0;
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#define MAX_MAJOR_MODES 5
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// major modes
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static MajorMode *major_modes[ MAX_MAJOR_MODES ] = { 0 };
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//_____________________________________________________________________________
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// code
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// check for button presses
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void checkButtons()
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{
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// update buttons
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button.update();
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// notice button presses
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if( button.risingEdge() )
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inc_draw_mode = true;
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}
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// keep track of time
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void trackTime()
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{
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// previous time and any carried-over milliseconds
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static unsigned long last_time = millis();
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static unsigned long carry = 0;
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// how many milliseonds have elapsed since we last checked?
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unsigned long next_time = millis();
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unsigned long delta = next_time - last_time + carry;
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// update the previous time and carried-over milliseconds
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last_time = next_time;
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carry = delta % 1000;
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// add the seconds that have passed to the time
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time_seconds += delta / 1000;
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while( time_seconds >= 60 ) {
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time_seconds -= 60;
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time_minutes++;
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if( time_minutes >= 60 ) {
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time_minutes -= 60;
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time_hours++;
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if( time_hours >= 24 )
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time_hours -= 24;
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// perform button events
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void doButtonEvents()
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{
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// loop through pending events
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while( int event = button.get_event() )
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{
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switch( event )
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{
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case 1:
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// short press
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major_modes[ major_mode ]->press();
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break;
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case 2:
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// long press
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major_modes[ major_mode ]->long_press();
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break;
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case 3:
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// looooong press (change major mode)
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do {
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if( ++major_mode >= MAX_MAJOR_MODES )
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major_mode = 0;
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} while( major_modes[ major_mode ] == NULL );
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major_modes[ major_mode ]->activate();
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break;
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}
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}
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}
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// draw a segment for the test display
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void drawNextSegment_test( bool reset )
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{
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// keep track of segment
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static unsigned int segment = 0;
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if( reset ) segment = 0;
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segment++;
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// turn on inside and outside LEDs
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digitalWrite( 4, HIGH );
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digitalWrite( 13, HIGH );
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// display segment number in binary across in the inside LEDs,
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// with the LED on pin 12 showing the least-significant bit
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for( int a = 0; a < 8; a++ )
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digitalWrite( 12 - a, ( ( segment >> a ) & 1 )? HIGH : LOW );
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}
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// draw a segment for the time display
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void drawNextSegment_time( bool reset )
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{
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static unsigned int second = 0;
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static unsigned int segment = 0;
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// handle display reset
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if( reset ) {
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second = 0;
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segment = 0;
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}
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// what needs to be drawn?
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bool draw_tick = second % 5 == 0;
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bool draw_second = second == time_seconds;
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bool draw_minute = second == time_minute;
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bool draw_hour = second == time_hour;
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// set the LEDs
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digitalWrite( 13, HIGH );
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digitalWrite( 12, draw_tick || draw_minute );
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for( int a = 10; a <= 11; a++ )
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digitalWrite( a, draw_minute || draw_second );
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for( int a = 4; a <= 9; a++ )
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digitalWrite( 10, draw_minute | draw_second || draw_hour );
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// inc position
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if( ++segment >= NUM_SECOND_SEGMENTS ) {
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segment = 0;
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second++;
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}
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}
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// draw a display segment
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void drawNextSegment( bool reset )
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{
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static int draw_mode = 0;
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// handle mode switch requests
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if( reset && inc_draw_mode ) {
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inc_draw_mode = false;
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draw_mode++;
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if( draw_mode >= 2 )
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draw_mode = 0;
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}
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// draw the segment
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switch( draw_mode ) {
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case 0: drawNextSegment_test( reset ); break;
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case 1: drawNextSegment_time( reset ); break;
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}
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// keep track of segment
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#if CLOCK_FORWARD
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static int segment = ( NUM_SEGMENTS - CLOCK_SHIFT ) % NUM_SEGMENTS;
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if( reset ) segment = ( NUM_SEGMENTS - CLOCK_SHIFT ) % NUM_SEGMENTS;
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#else
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static int segment = NUM_SEGMENTS - 1 - CLOCK_SHIFT;
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if( reset ) segment = NUM_SEGMENTS - 1 - CLOCK_SHIFT;
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#endif
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// draw
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Drawer &drawer = major_modes[ major_mode ]->get_drawer();
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if( reset ) drawer.draw_reset();
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drawer.draw( segment );
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#if CLOCK_FORWARD
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if( ++segment >= NUM_SEGMENTS ) segment = 0;
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#else
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if( --segment < 0 ) segment = NUM_SEGMENTS - 1;
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#endif
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}
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// wait until it is time to draw the next segment or a new pulse has
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// occurred
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void waitTillNextSegment( bool reset )
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void waitTillEndOfSegment( bool reset )
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{
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static unsigned long end_time = 0;
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// set up mode-switch button on pin 3
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pinMode( 3, INPUT );
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digitalWrite( 3, HIGH );
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static int event_times[] = { 5, 500, 4000, 0 };
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button.set_event_times( event_times );
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// serial comms
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Serial.begin( 9600 );
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// set up major modes
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static SwitcherMajorMode switcher_major_mode;
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int mode = 0;
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major_modes[ mode++ ] = &switcher_major_mode;
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major_modes[ 0 ]->activate();
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}
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// if there has been a new pulse, we'll be resetting the display
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bool reset = new_pulse_at? true : false;
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// update button
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button.update();
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// only do this stuff at the start of a display cycle, to ensure
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// that no state changes mid-display
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if( reset )
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{
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// check buttons
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checkButtons();
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// calculate segment times
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calculateSegmentTimes();
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// keep track of time
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trackTime();
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Time &time = Time::get_instance();
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time.update();
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// perform button events
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doButtonEvents();
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}
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// draw this segment
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drawNextSegment( reset );
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// do we need to recalculate segment times?
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if( reset )
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calculateSegmentTimes();
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// wait till it's time to draw the next segment
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waitTillNextSegment( reset );
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waitTillEndOfSegment( reset );
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}
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