qmk_firmware/assets/features_dip_switch.md.BphpeXE7.js

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const _hoisted_1 = /* @__PURE__ */ createStaticVNode('<h1 id="dip-switches" tabindex="-1">DIP Switches <a class="header-anchor" href="#dip-switches" aria-label="Permalink to &quot;DIP Switches&quot;">​</a></h1><p>DIP switches are supported by adding this to your <code>rules.mk</code>:</p><pre><code>DIP_SWITCH_ENABLE = yes\n</code></pre><p>and this to your <code>config.h</code>:</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Connects each switch in the dip switch to the GPIO pin of the MCU</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DIP_SWITCH_PINS</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { B14, A15, A10, B9 }</span></span>\n<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// For split keyboards, you can separately define the right side pins</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DIP_SWITCH_PINS_RIGHT</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { ... }</span></span></code></pre></div><p>or</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// Connect each switch in the DIP switch to an unused intersections in the key matrix.</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#define</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> DIP_SWITCH_MATRIX_GRID</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { {</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">6</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}, {</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">6</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}, {</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">6</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">} }</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // List of row and col pairs</span></span></code></pre></div><h2 id="dip-switch-map" tabindex="-1">DIP Switch map <a class="header-anchor" href="#dip-switch-map" aria-label="Permalink to &quot;DIP Switch map {#dip-switch-map}&quot;">​</a></h2><p>DIP Switch mapping may be added to your <code>keymap.c</code>, which replicates the normal keyswitch functionality, but with dip switches. Add this to your keymap&#39;s <code>rules.mk</code>:</p><div class="language-make vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">make</span><pre class="shiki shiki-themes github-light github-dark vp-code"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">DIP_SWITCH_MAP_ENABLE = yes</span></span></code></pre></div><p>Your <code>keymap.c</code> will then need a dip switch mapping defined (for two dip switches):</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#if</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> defined</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">DIP_SWITCH_MAP_ENABLE</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> uint16_t</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> PROGMEM </span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">dip_switch_map</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">[NUM_DIP_SWITCHES][NUM_DIP_STATES] </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">    DIP_SWITCH_OFF_ON</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">DF</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">), </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">DF</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)),</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">    DIP_SWITCH_OFF_ON</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(EC_NORM, EC_SWAP)</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">};</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#endif</span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>This should only be enabled at the keymap level.</p></div><h2 id="callbacks" tabindex="-1">Callbacks <a class="header-anchor" href="#callbacks" aria-label="Permalink to &quot;Callbacks&quot;">​</a></h2><p>The callback functions can be inserted into your <code>&lt;keyboard&gt;.c</code>:</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> dip_switch_update_kb</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> index</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> active</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">dip_switch_update_user</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(index, active)) { </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>or <code>keymap.c</code>:</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> dip_switch_update_user</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint8_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> index</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> active</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    switch</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (index) {</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">        case</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(active) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">audio_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">audio_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">        case</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(active) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">clicky_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">clicky_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">        case</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(active) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">music_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">music_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(); }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">        case</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 3</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (active) {</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">                #ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUDIO_ENABLE</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">                    PLAY_SONG</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(plover_song);</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">                #endif</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">                layer_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_PLOVER);</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">            } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">                #ifdef</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> AUDIO_ENABLE</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">                    PLAY_SONG</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(plover_gb_song);</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">                #endif</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">                layer_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_PLOVER);</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">            }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">            break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>Additionally, we support bit mask functions which allow for more complex handling.</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> dip_switch_update_mask_kb</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint32_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> state</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">dip_switch_update_mask_user</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(state)) { </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">; }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>or <code>keymap.c</code>:</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 github-dark vp-code"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> dip_switch_update_mask_user</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">uint32_t</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;"> state</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (state </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">UL&lt;&lt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> state </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">UL&lt;&lt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)) {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_ADJUST);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // C on esc</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_ADJUST);</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (state </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">UL&lt;&lt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)) {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_TEST_A);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // A on ESC</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_TEST_A);</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (state </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">UL&lt;&lt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)) {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_on</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_TEST_B);</span><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // B on esc</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>\n<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">        layer_off</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(_TEST_B);</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">    }</span></span>\n<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">    return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>\n<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><h2 id="hardware" tabindex="-1">Hardware <a class="header-anchor" href="#hardware" aria-label="Permalink to &quot;Hardware&quot;">​</a></h2><h3 id="connects-each-switch-in-the-dip-switch-to-the-gpio-pin-of-the-mcu" tabindex="-1">Connects each switch in the dip switch to the GPIO pin of the MCU <a class="header-anchor" href="#connects-each-switch-in-the-dip-switch-to-the-gpio-pin-of-the-mcu" aria-label="Permalink to &quot;Connects each switch in the dip switch to the GPIO pin of the MCU&quot;">​</a></h3><p>One side of the DIP switch should be wired directly to the pin on the MCU, and the other side to ground. It should not matter which side is connected to which, as it should be functionally the same.</p><h3 id="connect-each-switch-in-the-dip-switch-to-an-unused-intersections-in-the-key-matrix" tabindex="-1">Connect each switch in the DIP switch to an unused intersections in the key matrix. <a class="header-anchor" href="#connect-each-switch-in-the-dip-switch-to-an-unused-intersections-in-the-key-matrix" aria-label="Permalink to &quot;Connect each switch in the DIP switch to an unused intersections in the key matrix.&quot;">​</a></h3><p>As with the keyswitch, a diode and DIP switch connect the ROW line to the COL line.</p>', 27);
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