<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[T-Relay - How can I use on-board LED?]]></title><description><![CDATA[<p dir="auto">I want to have the on-board LED (LED5) turn on whenever the T-Relay module is powered.  I tried adding the following to my code in the setup function, but the LED only briefly flashes then goes off when power is applied.</p>
<pre><code>pinMode(25, OUTPUT);
digitalWrite(25, HIGH);
</code></pre>
<p dir="auto">What should I do to turn the LED ON?</p>
]]></description><link>https://www.community.lilygo.cc/topic/65/t-relay-how-can-i-use-on-board-led</link><generator>RSS for Node</generator><lastBuildDate>Thu, 14 May 2026 19:21:52 GMT</lastBuildDate><atom:link href="https://www.community.lilygo.cc/topic/65.rss" rel="self" type="application/rss+xml"/><pubDate>Tue, 10 May 2022 19:11:07 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to T-Relay - How can I use on-board LED? on Tue, 17 May 2022 02:39:20 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/114">@jpvonoy</a><br />
pinMode(25, OUTPUT);<br />
digitalWrite(25, LOW);</p>
]]></description><link>https://www.community.lilygo.cc/post/146</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/146</guid><dc:creator><![CDATA[Sukaibin]]></dc:creator><pubDate>Tue, 17 May 2022 02:39:20 GMT</pubDate></item></channel></rss>