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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div id="projectname">Sensor Watch<span id="projectnumber"> 0.0.1</span>
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<div id="projectbrief">A board replacement for the classic Casio F-91W wristwatch, powered by a Microchip SAM L22 microcontroller.</div>
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<a href="#typedef-members">Typedefs</a> |
<a href="#enum-members">Enumerations</a> |
<a href="#func-members">Functions</a> </div>
<div class="headertitle"><div class="title">Segment LCD Display</div></div>
</div><!--header-->
<div class="contents">
<p>This section covers functions related to the Segment LCD display driver, which is responsible for displaying strings of characters and indicators on the main watch display.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga12f90dd93f63366e5a08f161e5f6c9f5"><td class="memItemLeft" align="right" valign="top"><a id="ga12f90dd93f63366e5a08f161e5f6c9f5" name="ga12f90dd93f63366e5a08f161e5f6c9f5"></a>
typedef enum <a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> </td><td class="memItemRight" valign="bottom"><b>WatchIndicatorSegment</b></td></tr>
<tr class="memdesc:ga12f90dd93f63366e5a08f161e5f6c9f5"><td class="mdescLeft"> </td><td class="mdescRight">An enum listing the icons and indicators available on the watch. <br /></td></tr>
<tr class="separator:ga12f90dd93f63366e5a08f161e5f6c9f5"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="enum-members" name="enum-members"></a>
Enumerations</h2></td></tr>
<tr class="memitem:ga37a28bfc539ea2bb83107d59f77b20d2"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> { <br />
  <a class="el" href="group__slcd.html#gga37a28bfc539ea2bb83107d59f77b20d2a827a013c00782a143f13a4f88ce50292">WATCH_INDICATOR_SIGNAL</a> = 0
, <a class="el" href="group__slcd.html#gga37a28bfc539ea2bb83107d59f77b20d2a44727968b16d73ca11e3d19795085ee3">WATCH_INDICATOR_BELL</a>
, <a class="el" href="group__slcd.html#gga37a28bfc539ea2bb83107d59f77b20d2a0d023567f536ace6ff82e5120729090f">WATCH_INDICATOR_PM</a>
, <a class="el" href="group__slcd.html#gga37a28bfc539ea2bb83107d59f77b20d2aee02426fe8a094a399fe93de2f354e48">WATCH_INDICATOR_24H</a>
, <br />
  <a class="el" href="group__slcd.html#gga37a28bfc539ea2bb83107d59f77b20d2a98d272d879d473fb507a9fc27b6741c6">WATCH_INDICATOR_LAP</a>
<br />
}</td></tr>
<tr class="memdesc:ga37a28bfc539ea2bb83107d59f77b20d2"><td class="mdescLeft"> </td><td class="mdescRight">An enum listing the icons and indicators available on the watch. <a href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">More...</a><br /></td></tr>
<tr class="separator:ga37a28bfc539ea2bb83107d59f77b20d2"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga0bb83dc413aeb321daef90d93f258033"><td class="memItemLeft" align="right" valign="top"><a id="ga0bb83dc413aeb321daef90d93f258033" name="ga0bb83dc413aeb321daef90d93f258033"></a>
void </td><td class="memItemRight" valign="bottom"><b>watch_enable_display</b> (void)</td></tr>
<tr class="memdesc:ga0bb83dc413aeb321daef90d93f258033"><td class="mdescLeft"> </td><td class="mdescRight">Enables the Segment LCD display. Call this before attempting to set pixels or display strings. <br /></td></tr>
<tr class="separator:ga0bb83dc413aeb321daef90d93f258033"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga47948dc2c7490b698810ef9914507e08"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga47948dc2c7490b698810ef9914507e08">watch_set_pixel</a> (uint8_t com, uint8_t seg)</td></tr>
<tr class="memdesc:ga47948dc2c7490b698810ef9914507e08"><td class="mdescLeft"> </td><td class="mdescRight">Sets a pixel. Use this to manually set a pixel with a given common and segment number. See <a href="segmap.html">segmap.html</a>. <a href="group__slcd.html#ga47948dc2c7490b698810ef9914507e08">More...</a><br /></td></tr>
<tr class="separator:ga47948dc2c7490b698810ef9914507e08"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gabd583acd4aa18b6377478bf95bdac9b0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#gabd583acd4aa18b6377478bf95bdac9b0">watch_clear_pixel</a> (uint8_t com, uint8_t seg)</td></tr>
<tr class="memdesc:gabd583acd4aa18b6377478bf95bdac9b0"><td class="mdescLeft"> </td><td class="mdescRight">Clears a pixel. Use this to manually clear a pixel with a given common and segment number. See <a href="segmap.html">segmap.html</a>. <a href="group__slcd.html#gabd583acd4aa18b6377478bf95bdac9b0">More...</a><br /></td></tr>
<tr class="separator:gabd583acd4aa18b6377478bf95bdac9b0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad980e302e036abd7e26813de127139a4"><td class="memItemLeft" align="right" valign="top"><a id="gad980e302e036abd7e26813de127139a4" name="gad980e302e036abd7e26813de127139a4"></a>
void </td><td class="memItemRight" valign="bottom"><b>watch_clear_display</b> (void)</td></tr>
<tr class="memdesc:gad980e302e036abd7e26813de127139a4"><td class="mdescLeft"> </td><td class="mdescRight">Clears all segments of the display, including incicators and the colon. <br /></td></tr>
<tr class="separator:gad980e302e036abd7e26813de127139a4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga1983cf1e6a7d8feb1c7193a182ff683d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga1983cf1e6a7d8feb1c7193a182ff683d">watch_display_string</a> (char *string, uint8_t position)</td></tr>
<tr class="memdesc:ga1983cf1e6a7d8feb1c7193a182ff683d"><td class="mdescLeft"> </td><td class="mdescRight">Displays a string at the given position, starting from the top left. There are ten digits. A space in any position will clear that digit. <a href="group__slcd.html#ga1983cf1e6a7d8feb1c7193a182ff683d">More...</a><br /></td></tr>
<tr class="separator:ga1983cf1e6a7d8feb1c7193a182ff683d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga021df8bd4ab27a78a812cbb0eadd26ee"><td class="memItemLeft" align="right" valign="top"><a id="ga021df8bd4ab27a78a812cbb0eadd26ee" name="ga021df8bd4ab27a78a812cbb0eadd26ee"></a>
void </td><td class="memItemRight" valign="bottom"><b>watch_set_colon</b> (void)</td></tr>
<tr class="memdesc:ga021df8bd4ab27a78a812cbb0eadd26ee"><td class="mdescLeft"> </td><td class="mdescRight">Turns the colon segment on. <br /></td></tr>
<tr class="separator:ga021df8bd4ab27a78a812cbb0eadd26ee"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4bc4ab63f3214f475f71ed8c758f9782"><td class="memItemLeft" align="right" valign="top"><a id="ga4bc4ab63f3214f475f71ed8c758f9782" name="ga4bc4ab63f3214f475f71ed8c758f9782"></a>
void </td><td class="memItemRight" valign="bottom"><b>watch_clear_colon</b> (void)</td></tr>
<tr class="memdesc:ga4bc4ab63f3214f475f71ed8c758f9782"><td class="mdescLeft"> </td><td class="mdescRight">Turns the colon segment off. <br /></td></tr>
<tr class="separator:ga4bc4ab63f3214f475f71ed8c758f9782"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa6640c8b372933de978e1066aed7e7fd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#gaa6640c8b372933de978e1066aed7e7fd">watch_set_indicator</a> (<a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> indicator)</td></tr>
<tr class="memdesc:gaa6640c8b372933de978e1066aed7e7fd"><td class="mdescLeft"> </td><td class="mdescRight">Sets an indicator on the LCD. Use this to turn on one of the indicator segments. <a href="group__slcd.html#gaa6640c8b372933de978e1066aed7e7fd">More...</a><br /></td></tr>
<tr class="separator:gaa6640c8b372933de978e1066aed7e7fd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga54ee46bb4eb85e136a05af499889f50e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga54ee46bb4eb85e136a05af499889f50e">watch_clear_indicator</a> (<a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> indicator)</td></tr>
<tr class="memdesc:ga54ee46bb4eb85e136a05af499889f50e"><td class="mdescLeft"> </td><td class="mdescRight">Clears an indicator on the LCD. Use this to turn off one of the indicator segments. <a href="group__slcd.html#ga54ee46bb4eb85e136a05af499889f50e">More...</a><br /></td></tr>
<tr class="separator:ga54ee46bb4eb85e136a05af499889f50e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga9e2bb1a59c0d8b38ee7e0ebbbd05b009"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga9e2bb1a59c0d8b38ee7e0ebbbd05b009">watch_clear_all_indicators</a> (void)</td></tr>
<tr class="memdesc:ga9e2bb1a59c0d8b38ee7e0ebbbd05b009"><td class="mdescLeft"> </td><td class="mdescRight">Clears all indicator segments. <a href="group__slcd.html#ga9e2bb1a59c0d8b38ee7e0ebbbd05b009">More...</a><br /></td></tr>
<tr class="separator:ga9e2bb1a59c0d8b38ee7e0ebbbd05b009"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4c99ffbfa68aea0dce466db6e47879a5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga4c99ffbfa68aea0dce466db6e47879a5">watch_start_character_blink</a> (char character, uint32_t duration)</td></tr>
<tr class="memdesc:ga4c99ffbfa68aea0dce466db6e47879a5"><td class="mdescLeft"> </td><td class="mdescRight">Blinks a single character in position 7. Does not affect other positions. <a href="group__slcd.html#ga4c99ffbfa68aea0dce466db6e47879a5">More...</a><br /></td></tr>
<tr class="separator:ga4c99ffbfa68aea0dce466db6e47879a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga5d29760dd0998de98f8578ed3de5b1e5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga5d29760dd0998de98f8578ed3de5b1e5">watch_stop_blink</a> (void)</td></tr>
<tr class="memdesc:ga5d29760dd0998de98f8578ed3de5b1e5"><td class="mdescLeft"> </td><td class="mdescRight">Stops and clears all blinking segments. <a href="group__slcd.html#ga5d29760dd0998de98f8578ed3de5b1e5">More...</a><br /></td></tr>
<tr class="separator:ga5d29760dd0998de98f8578ed3de5b1e5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga70918c1acc2ed21512b69b83397303a4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga70918c1acc2ed21512b69b83397303a4">watch_start_tick_animation</a> (uint32_t duration)</td></tr>
<tr class="memdesc:ga70918c1acc2ed21512b69b83397303a4"><td class="mdescLeft"> </td><td class="mdescRight">Begins a two-segment "tick-tock" animation in position 8. <a href="group__slcd.html#ga70918c1acc2ed21512b69b83397303a4">More...</a><br /></td></tr>
<tr class="separator:ga70918c1acc2ed21512b69b83397303a4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3764fb499e056f9a45588268f11be8a0"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#ga3764fb499e056f9a45588268f11be8a0">watch_tick_animation_is_running</a> (void)</td></tr>
<tr class="memdesc:ga3764fb499e056f9a45588268f11be8a0"><td class="mdescLeft"> </td><td class="mdescRight">Checks if the tick animation is currently running. <a href="group__slcd.html#ga3764fb499e056f9a45588268f11be8a0">More...</a><br /></td></tr>
<tr class="separator:ga3764fb499e056f9a45588268f11be8a0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf2c52b4430b4e78a066b3a2b104d142a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__slcd.html#gaf2c52b4430b4e78a066b3a2b104d142a">watch_stop_tick_animation</a> (void)</td></tr>
<tr class="memdesc:gaf2c52b4430b4e78a066b3a2b104d142a"><td class="mdescLeft"> </td><td class="mdescRight">Stops the tick/tock animation and clears all animating segments. <a href="group__slcd.html#gaf2c52b4430b4e78a066b3a2b104d142a">More...</a><br /></td></tr>
<tr class="separator:gaf2c52b4430b4e78a066b3a2b104d142a"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p >This section covers functions related to the Segment LCD display driver, which is responsible for displaying strings of characters and indicators on the main watch display. </p>
<p >The segment LCD controller consumes about 3 microamperes of power with no segments on, and about 4 microamperes with all segments on. There is also a slight power impact associated with updating the screen (about 1 microampere to update at 1 Hz). For the absolute lowest power operation, update the display only when its contents have changed, and disable the SLCD peripheral when the screen is not in use. For a map of all common and segment pins, see <a href="segmap.html">segmap.html</a>. You can hover over any segment in that diagram to view the common and segment pins associated with each segment of the display. </p>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="ga37a28bfc539ea2bb83107d59f77b20d2" name="ga37a28bfc539ea2bb83107d59f77b20d2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga37a28bfc539ea2bb83107d59f77b20d2">◆ </a></span>WatchIndicatorSegment</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a></td>
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<p>An enum listing the icons and indicators available on the watch. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga37a28bfc539ea2bb83107d59f77b20d2a827a013c00782a143f13a4f88ce50292" name="gga37a28bfc539ea2bb83107d59f77b20d2a827a013c00782a143f13a4f88ce50292"></a>WATCH_INDICATOR_SIGNAL </td><td class="fielddoc"><p >The hourly signal indicator; also useful for indicating that sensors are on. </p>
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<tr><td class="fieldname"><a id="gga37a28bfc539ea2bb83107d59f77b20d2a44727968b16d73ca11e3d19795085ee3" name="gga37a28bfc539ea2bb83107d59f77b20d2a44727968b16d73ca11e3d19795085ee3"></a>WATCH_INDICATOR_BELL </td><td class="fielddoc"><p >The small bell indicating that an alarm is set. </p>
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<tr><td class="fieldname"><a id="gga37a28bfc539ea2bb83107d59f77b20d2a0d023567f536ace6ff82e5120729090f" name="gga37a28bfc539ea2bb83107d59f77b20d2a0d023567f536ace6ff82e5120729090f"></a>WATCH_INDICATOR_PM </td><td class="fielddoc"><p >The PM indicator, indicating that a time is in the afternoon. </p>
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<tr><td class="fieldname"><a id="gga37a28bfc539ea2bb83107d59f77b20d2aee02426fe8a094a399fe93de2f354e48" name="gga37a28bfc539ea2bb83107d59f77b20d2aee02426fe8a094a399fe93de2f354e48"></a>WATCH_INDICATOR_24H </td><td class="fielddoc"><p >The 24H indicator, indicating that the watch is in a 24-hour mode. </p>
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<tr><td class="fieldname"><a id="gga37a28bfc539ea2bb83107d59f77b20d2a98d272d879d473fb507a9fc27b6741c6" name="gga37a28bfc539ea2bb83107d59f77b20d2a98d272d879d473fb507a9fc27b6741c6"></a>WATCH_INDICATOR_LAP </td><td class="fielddoc"><p >The LAP indicator; the F-91W uses this in its stopwatch UI. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga9e2bb1a59c0d8b38ee7e0ebbbd05b009">◆ </a></span>watch_clear_all_indicators()</h2>
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<td class="memname">void watch_clear_all_indicators </td>
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<p>Clears all indicator segments. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2" title="An enum listing the icons and indicators available on the watch.">WatchIndicatorSegment</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga54ee46bb4eb85e136a05af499889f50e">◆ </a></span>watch_clear_indicator()</h2>
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<td class="memname">void watch_clear_indicator </td>
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<td class="paramtype"><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> </td>
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<p>Clears an indicator on the LCD. Use this to turn off one of the indicator segments. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">indicator</td><td>One of the indicator segments from the enum. </td></tr>
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</dd>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2" title="An enum listing the icons and indicators available on the watch.">WatchIndicatorSegment</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gabd583acd4aa18b6377478bf95bdac9b0">◆ </a></span>watch_clear_pixel()</h2>
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<td class="memname">void watch_clear_pixel </td>
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<td class="paramtype">uint8_t </td>
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<p>Clears a pixel. Use this to manually clear a pixel with a given common and segment number. See <a href="segmap.html">segmap.html</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">com</td><td>the common pin, numbered from 0-2. </td></tr>
<tr><td class="paramname">seg</td><td>the segment pin, numbered from 0-23. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga1983cf1e6a7d8feb1c7193a182ff683d">◆ </a></span>watch_display_string()</h2>
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<td class="memname">void watch_display_string </td>
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<p>Displays a string at the given position, starting from the top left. There are ten digits. A space in any position will clear that digit. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">string</td><td>A null-terminated string. </td></tr>
<tr><td class="paramname">position</td><td>The position where you wish to start displaying the string. The day of week digits are positions 0 and 1; the day of month digits are positions 2 and 3, and the main clock line occupies positions 4-9. </td></tr>
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<dl class="section note"><dt>Note</dt><dd>This method does not clear the display; if for example you display a two-character string at position 0, positions 2-9 will retain whatever state they were previously displaying. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa6640c8b372933de978e1066aed7e7fd">◆ </a></span>watch_set_indicator()</h2>
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<td class="memname">void watch_set_indicator </td>
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<td class="paramtype"><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2">WatchIndicatorSegment</a> </td>
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<p>Sets an indicator on the LCD. Use this to turn on one of the indicator segments. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">indicator</td><td>One of the indicator segments from the enum. </td></tr>
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</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__slcd.html#ga37a28bfc539ea2bb83107d59f77b20d2" title="An enum listing the icons and indicators available on the watch.">WatchIndicatorSegment</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga47948dc2c7490b698810ef9914507e08">◆ </a></span>watch_set_pixel()</h2>
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<td class="memname">void watch_set_pixel </td>
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<td class="paramtype">uint8_t </td>
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<p>Sets a pixel. Use this to manually set a pixel with a given common and segment number. See <a href="segmap.html">segmap.html</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">com</td><td>the common pin, numbered from 0-2. </td></tr>
<tr><td class="paramname">seg</td><td>the segment pin, numbered from 0-23. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga4c99ffbfa68aea0dce466db6e47879a5">◆ </a></span>watch_start_character_blink()</h2>
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<td class="memname">void watch_start_character_blink </td>
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<p>Blinks a single character in position 7. Does not affect other positions. </p>
<p >Six of the seven segments in position 7 (and only position 7) are capable of autonomous blinking. This blinking does not require any CPU resources, and will continue even in STANDBY and Sleep mode (but not Deep Sleep mode, since that mode turns off the LCD). </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">character</td><td>The character you wish to blink. </td></tr>
<tr><td class="paramname">duration</td><td>The duration of the on/off cycle in milliseconds, from 50 to ~4250 ms. </td></tr>
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<dl class="section note"><dt>Note</dt><dd>Segment B of position 7 cannot blink autonomously, so not all characters will work well. Supported characters for blinking:<ul>
<li>Punctuation: underscore, apostrophe, comma, hyphen, equals sign, tilde (top segment only)</li>
<li>Numbers: 5, 6, ampersand (lowercase 7)</li>
<li>Letters: b, C, c, E, F, h, i, L, l, n, o, S, t </li>
</ul>
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<h2 class="memtitle"><span class="permalink"><a href="#ga70918c1acc2ed21512b69b83397303a4">◆ </a></span>watch_start_tick_animation()</h2>
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<td class="memname">void watch_start_tick_animation </td>
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<p>Begins a two-segment "tick-tock" animation in position 8. </p>
<p >Six of the seven segments in position 8 (and only position 8) are capable of autonomous animation. This animation is very basic, and consists of moving a bit pattern forward or backward in a shift register whose positions map to fixed segments on the LCD. Given this constraint, an animation across all six segments does not make sense; so the watch library offers only a simple "tick/tock" in segments D and E. This animation does not require any CPU resources, and will continue even in STANDBY and Sleep mode (but not Deep Sleep mode, since that mode turns off the LCD). </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">duration</td><td>The duration of each frame in ms. 500 milliseconds produces a classic tick/tock. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga5d29760dd0998de98f8578ed3de5b1e5">◆ </a></span>watch_stop_blink()</h2>
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<td class="memname">void watch_stop_blink </td>
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<p>Stops and clears all blinking segments. </p>
<p >This will stop all blinking in position 7, and clear all segments in that digit. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf2c52b4430b4e78a066b3a2b104d142a">◆ </a></span>watch_stop_tick_animation()</h2>
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<p>Stops the tick/tock animation and clears all animating segments. </p>
<p >This will stop the animation and clear all segments in position 8. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga3764fb499e056f9a45588268f11be8a0">◆ </a></span>watch_tick_animation_is_running()</h2>
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<p>Checks if the tick animation is currently running. </p>
<dl class="section return"><dt>Returns</dt><dd>true if the animation is running; false otherwise. </dd></dl>
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