105
102
static bool inc_draw_mode = false;
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104
// a bounce-managed button
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static Button button( 3 );
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static Bounce button( 3, 5 );
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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
113
// 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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117
//_____________________________________________________________________________
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122
void checkButtons()
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// update buttons
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int event = button.update();
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// notice button presses
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if( button.risingEdge() )
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129
inc_draw_mode = true;
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// turn an led on/off
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void ledOn( int num, bool on )
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if( num < 0 || num > 9 ) return;
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// convert to pin no.
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// pin 4 needs to be inverted (it's driving a PNP)
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if( num == 4 ) on = !on;
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digitalWrite( num, on? HIGH : LOW );
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// keep track of time
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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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if( time_minutes >= 60 ) {
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if( time_hours >= 24 )
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// draw a segment for the test display
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void drawNextSegment_test( bool reset )
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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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// 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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// draw a segment for the time display
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void drawNextSegment_time( bool reset )
185
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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// what needs to be drawn?
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bool draw_tick = !segment && second % 5 == 0;
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bool draw_second = !segment && second == time_seconds;
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bool draw_minute = !segment && second == time_minutes;
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bool draw_hour = !segment && second == time_hours;
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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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if( ++segment >= NUM_SECOND_SEGMENTS ) {
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216
// draw a display segment
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217
void drawNextSegment( bool reset )
147
static ModeSwitcher mode_switcher;
148
static bool init = false;
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mode_switcher.activate();
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// keep track of segment
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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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static int segment = NUM_SEGMENTS - 1 - CLOCK_SHIFT;
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if( reset ) segment = NUM_SEGMENTS - 1 - CLOCK_SHIFT;
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Drawer &drawer = mode_switcher.get_drawer();
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if( reset ) drawer.draw_reset();
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drawer.draw( segment );
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if( ++segment >= NUM_SEGMENTS ) segment = 0;
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if( --segment < 0 ) segment = NUM_SEGMENTS - 1;
219
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;
230
switch( draw_mode ) {
231
case 0: drawNextSegment_test( reset ); break;
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case 1: drawNextSegment_time( reset ); break;
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309
// set up mode-switch button on pin 3
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310
pinMode( 3, INPUT );
251
digitalWrite( 3, HIGH );
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button.add_event_at( 5, 1 );
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button.add_event_at( 1000, 2 );
254
button.add_event_at( 4000, 3 );
312
// get the time from the real-time clock
314
RTC.get( rtc_data, true );
315
time_hours = rtc_data[ DS1307_HR ];
316
time_minutes = rtc_data[ DS1307_MIN ];
317
time_seconds = rtc_data[ DS1307_SEC ];
257
320
Serial.begin( 9600 );