qmk_firmware/assets/features_wpm.md.CWZNhgox.js

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const _hoisted_1 = /* @__PURE__ */ createStaticVNode('<h1 id="word-per-minute-wpm-calculation" tabindex="-1">Word Per Minute (WPM) Calculation <a class="header-anchor" href="#word-per-minute-wpm-calculation" aria-label="Permalink to &quot;Word Per Minute (WPM) Calculation&quot;">​</a></h1><p>The WPM feature uses time between keystrokes to compute a rolling average words per minute rate and makes this available for various uses.</p><p>Enable the WPM system by adding this to your <code>rules.mk</code>:</p><pre><code>WPM_ENABLE = yes\n</code></pre><p>For split keyboards using soft serial, the computed WPM score will be available on the master AND slave half.</p><h2 id="configuration" tabindex="-1">Configuration <a class="header-anchor" href="#configuration" aria-label="Permalink to &quot;Configuration&quot;">​</a></h2><table><thead><tr><th>Define</th><th>Default</th><th>Description</th></tr></thead><tbody><tr><td><code>WPM_ESTIMATED_WORD_SIZE</code></td><td><code>5</code></td><td>This is the value used when estimating average word size (for regression and normal use)</td></tr><tr><td><code>WPM_ALLOW_COUNT_REGRESSION</code></td><td><em>Not defined</em></td><td>If defined allows the WPM to be decreased when hitting Delete or Backspace</td></tr><tr><td><code>WPM_UNFILTERED</code></td><td><em>Not defined</em></td><td>If undefined (the default), WPM values will be smoothed to avoid sudden changes in value</td></tr><tr><td><code>WPM_SAMPLE_SECONDS</code></td><td><code>5</code></td><td>This defines how many seconds of typing to average, when calculating WPM</td></tr><tr><td><code>WPM_SAMPLE_PERIODS</code></td><td><code>25</code></td><td>This defines how many sampling periods to use when calculating WPM</td></tr><tr><td><code>WPM_LAUNCH_CONTROL</code></td><td><em>Not defined</em></td><td>If defined, WPM values will be calculated using partial buffers when typing begins</td></tr></tbody></table><p>&#39;WPM_UNFILTERED&#39; is potentially useful if you&#39;re filtering data in some other way (and also because it reduces the code required for the WPM feature), or if reducing measurement latency to a minimum is important for you.</p><p>Increasing &#39;WPM_SAMPLE_SECONDS&#39; will give more smoothly changing WPM values at the expense of slightly more latency to the WPM calculation.</p><p>Increasing &#39;WPM_SAMPLE_PERIODS&#39; will improve the smoothness at which WPM decays once typing stops, at a cost of approximately this many bytes of firmware space.</p><p>If &#39;WPM_LAUNCH_CONTROL&#39; is defined, whenever WPM drops to zero, the next time typing begins WPM will be calculated based only on the time since that typing began, instead of the whole period of time specified by WPM_SAMPLE_SECONDS. This results in reaching an accurate WPM value much faster, even when filtering is enabled and a large WPM_SAMPLE_SECONDS value is specified.</p><h2 id="public-functions" tabindex="-1">Public Functions <a class="header-anchor" href="#public-functions" aria-label="Permalink to &quot;Public Functions&quot;">​</a></h2><table><thead><tr><th>Function</th><th>Description</th></tr></thead><tbody><tr><td><code>get_current_wpm(void)</code></td><td>Returns the current WPM as a value between 0-255</td></tr><tr><td><code>set_current_wpm(x)</code></td><td>Sets the current WPM to <code>x</code> (between 0-255)</td></tr></tbody></table><h2 id="callbacks" tabindex="-1">Callbacks <a class="header-anchor" href="#callbacks" aria-label="Permalink to &quot;Callbacks&quot;">​</a></h2><p>By default, the WPM score only includes letters, numbers, space and some punctuation. If you want to change the set of characters considered as part of the WPM calculation, you can implement your own <code>bool wpm_keycode_user(uint16_t keycode)</code> and return true for any characters you would like included in the calculation, or false to not count that particular keycode.</p><p>For instance, the default is:</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light githu
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