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See 2023-11-29 CHANGELOG.md
2023-11-30 01:56:48 +00:00
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<li class="toctree-l1"><a class="reference internal" href="../index.html">st7789py Driver</a></li>
<li class="toctree-l1"><a class="reference internal" href="../st7789py.html">st7789py Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../st7789py.html#st7789py.color565"><code class="docutils literal notranslate"><span class="pre">color565()</span></code></a></li>
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<li class="toctree-l3"><a class="reference internal" href="../configs/atom_s3.html">M5STACK AtomS3 128x128 (GC9107)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/rp2040_touch_lcd_128.html">RP2040-Touch-LCD-1.28 240x240 (GC9A01)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/t-dongle-s3.html">LilyGo T-Dongle-S3 80x160 (ST7735)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/t-embed.html">LilyGo T-embed 170x320</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/t_qt_pro.html">LilyGo T-QT Pro 128x128 (GC9107)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/waveshare_114.html">Waveshare Pico LCD 1.14 135x240</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../configs/waveshare_2.html">Waveshare Pico LCD 2 240x320</a><ul>
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<section id="feathers-py">
<span id="feathers"></span><h1>feathers.py<a class="headerlink" href="#feathers-py" title="Link to this heading"></a></h1>
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<figcaption>
<p><span class="caption-text">Test hardware scrolling.</span><a class="headerlink" href="#id1" title="Link to this image"></a></p>
</figcaption>
</figure>
<p>Smoothly scrolls mirrored rainbow colored random curves across the display.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>This example requires the following modules:</p>
<table class="hlist"><tr><td><ul class="simple">
<li><p><cite>st7789py</cite></p></li>
</ul>
</td><td><ul class="simple">
<li><p><cite>tft_config</cite></p></li>
</ul>
</td><td><ul class="simple">
</ul>
</td></tr></table>
</div>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="sd">&quot;&quot;&quot;</span>
<span class="linenos"> 2</span><span class="sd">feathers.py</span>
<span class="linenos"> 3</span><span class="sd">===========</span>
<span class="linenos"> 4</span>
<span class="linenos"> 5</span><span class="sd">.. figure:: ../_static/feathers.jpg</span>
<span class="linenos"> 6</span><span class="sd"> :align: center</span>
<span class="linenos"> 7</span>
<span class="linenos"> 8</span><span class="sd"> Test hardware scrolling.</span>
<span class="linenos"> 9</span>
<span class="linenos"> 10</span><span class="sd">Smoothly scrolls mirrored rainbow colored random curves across the display.</span>
<span class="linenos"> 11</span>
<span class="linenos"> 12</span><span class="sd">.. note:: This example requires the following modules:</span>
<span class="linenos"> 13</span>
<span class="linenos"> 14</span><span class="sd"> .. hlist::</span>
<span class="linenos"> 15</span><span class="sd"> :columns: 3</span>
<span class="linenos"> 16</span>
<span class="linenos"> 17</span><span class="sd"> - `st7789py`</span>
<span class="linenos"> 18</span><span class="sd"> - `tft_config`</span>
<span class="linenos"> 19</span>
<span class="linenos"> 20</span><span class="sd">&quot;&quot;&quot;</span>
<span class="linenos"> 21</span>
<span class="linenos"> 22</span><span class="kn">import</span> <span class="nn">random</span>
<span class="linenos"> 23</span><span class="kn">import</span> <span class="nn">math</span>
<span class="linenos"> 24</span><span class="kn">import</span> <span class="nn">time</span>
<span class="linenos"> 25</span><span class="kn">import</span> <span class="nn">st7789py</span> <span class="k">as</span> <span class="nn">st7789</span>
<span class="linenos"> 26</span><span class="kn">import</span> <span class="nn">tft_config</span>
<span class="linenos"> 27</span>
<span class="linenos"> 28</span>
<span class="linenos"> 29</span><span class="k">def</span> <span class="nf">between</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">along</span><span class="p">):</span>
<span class="linenos"> 30</span><span class="w"> </span><span class="sd">&quot;&quot;&quot;returns a point along the curve from left to right&quot;&quot;&quot;</span>
<span class="linenos"> 31</span> <span class="n">dist</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o">-</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">along</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">pi</span><span class="p">))</span> <span class="o">/</span> <span class="mi">2</span>
<span class="linenos"> 32</span> <span class="k">return</span> <span class="n">left</span> <span class="o">*</span> <span class="p">(</span><span class="mi">1</span> <span class="o">-</span> <span class="n">dist</span><span class="p">)</span> <span class="o">+</span> <span class="n">right</span> <span class="o">*</span> <span class="n">dist</span>
<span class="linenos"> 33</span>
<span class="linenos"> 34</span>
<span class="linenos"> 35</span><span class="k">def</span> <span class="nf">color_wheel</span><span class="p">(</span><span class="n">position</span><span class="p">):</span>
<span class="linenos"> 36</span><span class="w"> </span><span class="sd">&quot;&quot;&quot;returns a 565 color from the given position of the color wheel&quot;&quot;&quot;</span>
<span class="linenos"> 37</span> <span class="n">position</span> <span class="o">=</span> <span class="p">(</span><span class="mi">255</span> <span class="o">-</span> <span class="n">position</span><span class="p">)</span> <span class="o">%</span> <span class="mi">255</span>
<span class="linenos"> 38</span>
<span class="linenos"> 39</span> <span class="k">if</span> <span class="n">position</span> <span class="o">&lt;</span> <span class="mi">85</span><span class="p">:</span>
<span class="linenos"> 40</span> <span class="k">return</span> <span class="n">st7789</span><span class="o">.</span><span class="n">color565</span><span class="p">(</span><span class="mi">255</span> <span class="o">-</span> <span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">)</span>
<span class="linenos"> 41</span>
<span class="linenos"> 42</span> <span class="k">if</span> <span class="n">position</span> <span class="o">&lt;</span> <span class="mi">170</span><span class="p">:</span>
<span class="linenos"> 43</span> <span class="n">position</span> <span class="o">-=</span> <span class="mi">85</span>
<span class="linenos"> 44</span> <span class="k">return</span> <span class="n">st7789</span><span class="o">.</span><span class="n">color565</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">255</span> <span class="o">-</span> <span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">)</span>
<span class="linenos"> 45</span>
<span class="linenos"> 46</span> <span class="n">position</span> <span class="o">-=</span> <span class="mi">170</span>
<span class="linenos"> 47</span> <span class="k">return</span> <span class="n">st7789</span><span class="o">.</span><span class="n">color565</span><span class="p">(</span><span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">255</span> <span class="o">-</span> <span class="n">position</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="linenos"> 48</span>
<span class="linenos"> 49</span>
<span class="linenos"> 50</span><span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
<span class="linenos"> 51</span><span class="w"> </span><span class="sd">&#39;&#39;&#39;</span>
<span class="linenos"> 52</span><span class="sd"> The big show!</span>
<span class="linenos"> 53</span><span class="sd"> &#39;&#39;&#39;</span>
<span class="linenos"> 54</span> <span class="c1">#enable display and clear screen</span>
<span class="linenos"> 55</span>
<span class="linenos"> 56</span> <span class="n">tft</span> <span class="o">=</span> <span class="n">tft_config</span><span class="o">.</span><span class="n">config</span><span class="p">(</span><span class="n">tft_config</span><span class="o">.</span><span class="n">FEATHERS</span><span class="p">)</span>
<span class="linenos"> 57</span>
<span class="linenos"> 58</span> <span class="n">height</span> <span class="o">=</span> <span class="n">tft</span><span class="o">.</span><span class="n">height</span> <span class="c1"># height of display in pixels</span>
<span class="linenos"> 59</span> <span class="n">width</span> <span class="o">=</span> <span class="n">tft</span><span class="o">.</span><span class="n">width</span> <span class="c1"># width if display in pixels</span>
<span class="linenos"> 60</span>
<span class="linenos"> 61</span> <span class="n">tfa</span> <span class="o">=</span> <span class="n">tft_config</span><span class="o">.</span><span class="n">TFA</span> <span class="c1"># top free area when scrolling</span>
<span class="linenos"> 62</span> <span class="n">bfa</span> <span class="o">=</span> <span class="n">tft_config</span><span class="o">.</span><span class="n">BFA</span> <span class="c1"># bottom free area when scrolling</span>
<span class="linenos"> 63</span>
<span class="linenos"> 64</span> <span class="n">scroll</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># scroll position</span>
<span class="linenos"> 65</span> <span class="n">wheel</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># color wheel position</span>
<span class="linenos"> 66</span>
<span class="linenos"> 67</span> <span class="n">tft</span><span class="o">.</span><span class="n">vscrdef</span><span class="p">(</span><span class="n">tfa</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">bfa</span><span class="p">)</span> <span class="c1"># set scroll area</span>
<span class="linenos"> 68</span> <span class="n">tft</span><span class="o">.</span><span class="n">vscsad</span><span class="p">(</span><span class="n">scroll</span> <span class="o">+</span> <span class="n">tfa</span><span class="p">)</span> <span class="c1"># set scroll position</span>
<span class="linenos"> 69</span> <span class="n">tft</span><span class="o">.</span><span class="n">fill</span><span class="p">(</span><span class="n">st7789</span><span class="o">.</span><span class="n">BLACK</span><span class="p">)</span> <span class="c1"># clear screen</span>
<span class="linenos"> 70</span>
<span class="linenos"> 71</span> <span class="n">half</span> <span class="o">=</span> <span class="p">(</span><span class="n">height</span> <span class="o">&gt;&gt;</span> <span class="mi">1</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span> <span class="c1"># half the height of the dislay</span>
<span class="linenos"> 72</span> <span class="n">interval</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># steps between new points</span>
<span class="linenos"> 73</span> <span class="n">increment</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># increment per step</span>
<span class="linenos"> 74</span> <span class="n">counter</span> <span class="o">=</span> <span class="mi">1</span> <span class="c1"># step counter, overflow to start</span>
<span class="linenos"> 75</span> <span class="n">current_y</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># current_y value (right point)</span>
<span class="linenos"> 76</span> <span class="n">last_y</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># last_y value (left point)</span>
<span class="linenos"> 77</span>
<span class="linenos"> 78</span> <span class="c1"># segment offsets</span>
<span class="linenos"> 79</span> <span class="n">x_offsets</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span> <span class="o">*</span> <span class="p">(</span><span class="n">width</span> <span class="o">//</span> <span class="mi">8</span><span class="p">)</span> <span class="o">-</span><span class="mi">1</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">9</span><span class="p">)]</span>
<span class="linenos"> 80</span>
<span class="linenos"> 81</span> <span class="k">while</span> <span class="kc">True</span><span class="p">:</span>
<span class="linenos"> 82</span> <span class="c1"># when the counter exceeds the interval, save current_y to last_y,</span>
<span class="linenos"> 83</span> <span class="c1"># choose a new random value for current_y between 0 and 1/2 the</span>
<span class="linenos"> 84</span> <span class="c1"># height of the display, choose a new random interval then reset</span>
<span class="linenos"> 85</span> <span class="c1"># the counter to 0</span>
<span class="linenos"> 86</span>
<span class="linenos"> 87</span> <span class="k">if</span> <span class="n">counter</span> <span class="o">&gt;</span> <span class="n">interval</span><span class="p">:</span>
<span class="linenos"> 88</span> <span class="n">last_y</span> <span class="o">=</span> <span class="n">current_y</span>
<span class="linenos"> 89</span> <span class="n">current_y</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">half</span><span class="p">)</span>
<span class="linenos"> 90</span> <span class="n">counter</span> <span class="o">=</span> <span class="mi">0</span>
<span class="linenos"> 91</span> <span class="n">interval</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span> <span class="mi">100</span><span class="p">)</span>
<span class="linenos"> 92</span> <span class="n">increment</span> <span class="o">=</span> <span class="mi">1</span><span class="o">/</span><span class="n">interval</span> <span class="c1"># increment per step</span>
<span class="linenos"> 93</span>
<span class="linenos"> 94</span> <span class="c1"># clear the first column of the display and scroll it</span>
<span class="linenos"> 95</span> <span class="n">tft</span><span class="o">.</span><span class="n">vline</span><span class="p">(</span><span class="n">scroll</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="n">st7789</span><span class="o">.</span><span class="n">BLACK</span><span class="p">)</span>
<span class="linenos"> 96</span> <span class="n">tft</span><span class="o">.</span><span class="n">vscsad</span><span class="p">(</span><span class="n">scroll</span> <span class="o">+</span> <span class="n">tfa</span><span class="p">)</span>
<span class="linenos"> 97</span>
<span class="linenos"> 98</span> <span class="c1"># get the next point between last_y and current_y</span>
<span class="linenos"> 99</span> <span class="n">tween</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">between</span><span class="p">(</span><span class="n">last_y</span><span class="p">,</span> <span class="n">current_y</span><span class="p">,</span> <span class="n">counter</span> <span class="o">*</span> <span class="n">increment</span><span class="p">))</span>
<span class="linenos">100</span>
<span class="linenos">101</span> <span class="c1"># draw mirrored pixels across the display at the offsets using the color_wheel effect</span>
<span class="linenos">102</span> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="n">x_offset</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">x_offsets</span><span class="p">):</span>
<span class="linenos">103</span> <span class="n">tft</span><span class="o">.</span><span class="n">pixel</span><span class="p">((</span><span class="n">scroll</span> <span class="o">+</span> <span class="n">x_offset</span><span class="p">)</span> <span class="o">%</span> <span class="n">width</span><span class="p">,</span> <span class="n">half</span> <span class="o">+</span> <span class="n">tween</span><span class="p">,</span> <span class="n">color_wheel</span><span class="p">(</span><span class="n">wheel</span><span class="o">+</span><span class="p">(</span><span class="n">i</span><span class="o">&lt;&lt;</span><span class="mi">2</span><span class="p">)))</span>
<span class="linenos">104</span> <span class="n">tft</span><span class="o">.</span><span class="n">pixel</span><span class="p">((</span><span class="n">scroll</span> <span class="o">+</span> <span class="n">x_offset</span><span class="p">)</span> <span class="o">%</span> <span class="n">width</span><span class="p">,</span> <span class="n">half</span> <span class="o">-</span> <span class="n">tween</span><span class="p">,</span> <span class="n">color_wheel</span><span class="p">(</span><span class="n">wheel</span><span class="o">+</span><span class="p">(</span><span class="n">i</span><span class="o">&lt;&lt;</span><span class="mi">2</span><span class="p">)))</span>
<span class="linenos">105</span>
<span class="linenos">106</span> <span class="c1"># increment scroll, counter, and wheel</span>
<span class="linenos">107</span> <span class="n">scroll</span> <span class="o">=</span> <span class="p">(</span><span class="n">scroll</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">%</span> <span class="n">width</span>
<span class="linenos">108</span> <span class="n">wheel</span> <span class="o">=</span> <span class="p">(</span><span class="n">wheel</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">%</span> <span class="mi">256</span>
<span class="linenos">109</span> <span class="n">counter</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="linenos">110</span>
<span class="linenos">111</span>
<span class="linenos">112</span><span class="n">main</span><span class="p">()</span>
</pre></div>
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