<?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-rgb (half circle)]]></title><description><![CDATA[<p dir="auto">Can anyone help please. I cannot get any of the examples to compile in the Arduino IDE. A myriad of errors are reported. Icopied all of the files to the environment. If you please can send me a working .ino with description of the used libraries, I would be very greatful</p>
]]></description><link>https://www.community.lilygo.cc/topic/456/t-rgb-half-circle</link><generator>RSS for Node</generator><lastBuildDate>Sat, 14 Mar 2026 00:12:14 GMT</lastBuildDate><atom:link href="https://www.community.lilygo.cc/topic/456.rss" rel="self" type="application/rss+xml"/><pubDate>Thu, 08 Jun 2023 05:59:46 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 24 Jun 2023 20:51:50 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> Thanks for getting back to me!<br />
Let me know!<br />
-Terry</p>
]]></description><link>https://www.community.lilygo.cc/post/856</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/856</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Sat, 24 Jun 2023 20:51:50 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 24 Jun 2023 19:10:13 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
Hi Terry, I'm back in business again!<br />
And... I have solved the problems, thanks to this link:<br />
<a href="https://github.com/moononournation/Arduino_GFX/wiki/Dev-Device-Declaration#esp32-8048s070" rel="nofollow ugc">Device declaration</a></p>
<p dir="auto">My basic altitudemeter is working now. I still have to 'clean' my sketch. Afterwards I will post the code here.</p>
<p dir="auto">Thank you again for helping me.</p>
]]></description><link>https://www.community.lilygo.cc/post/855</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/855</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Sat, 24 Jun 2023 19:10:13 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sun, 11 Jun 2023 20:35:13 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> Sadly I do not have a T-RGB to use!<br />
My advice is based on other LilyGO products using ESP32 S3.<br />
Can you get ANY of the T-RGB examples running?<br />
Regards, Terry</p>
]]></description><link>https://www.community.lilygo.cc/post/817</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/817</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Sun, 11 Jun 2023 20:35:13 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sun, 11 Jun 2023 20:21:29 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
Hi Terry, one last request before I'll be down for a couple days:</p>
<ol>
<li>Yes, I copied all these files from <a href="https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib" rel="nofollow ugc">https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib</a></li>
<li>There is an example that I would very much use for my altimeter project:<br />
<a href="https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib/Arduino_GFX/examples/Clock" rel="nofollow ugc">https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib/Arduino_GFX/examples/Clock</a><br />
But, as expected, I cannot complie this sketch. Can you have a look at this example and try to get it running on the T-RGB? If you succeed, I then know that it is possible!</li>
</ol>
<p dir="auto">Thanks so far, Bas van de Pavert</p>
]]></description><link>https://www.community.lilygo.cc/post/816</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/816</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Sun, 11 Jun 2023 20:21:29 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 10 Jun 2023 19:15:24 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> Take care!</p>
]]></description><link>https://www.community.lilygo.cc/post/812</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/812</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Sat, 10 Jun 2023 19:15:24 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 10 Jun 2023 18:55:21 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
Thank you Terry for this suggestion. I will try this in the coming days ....<br />
Infortunately I have a medical issue that requires hospitalization for some days...</p>
<p dir="auto">I sincerely hope I can come back to you in a couple of days<br />
Thanks Bas</p>
]]></description><link>https://www.community.lilygo.cc/post/811</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/811</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Sat, 10 Jun 2023 18:55:21 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 10 Jun 2023 16:53:59 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> Good morning.Sounds like excellent progress!<br />
Did you copy all files from:<br />
<a href="https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib" rel="nofollow ugc">https://github.com/Xinyuan-LilyGO/T-RGB/tree/main/lib</a><br />
and copy them to your libraries folder, overwriting (replacing), not merging them?<br />
LilyGO is notorious for modifying (forking) established well know libraries to use on their products.</p>
]]></description><link>https://www.community.lilygo.cc/post/810</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/810</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Sat, 10 Jun 2023 16:53:59 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 10 Jun 2023 11:28:43 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
When I compile the factory.ino I get these messages:<br />
H:\Bas\Arduino\Sketches\T-RGB\factory\photo2.c:24:30: error: unknown type name 'LV_ATTRIBUTE_LARGE_CONST'<br />
const LV_ATTRIBUTE_MEM_ALIGN LV_ATTRIBUTE_LARGE_CONST LV_ATTRIBUTE_IMG_PHOTO2 uint8_t photo2_map[] = {<br />
^~~~~~~~~~~~~~~~~~~~~~~~<br />
H:\Bas\Arduino\Sketches\T-RGB\factory\photo2.c:24:87: error: expected '=', ',', ';', 'asm' or '<strong>attribute</strong>' before 'photo2_map'<br />
const LV_ATTRIBUTE_MEM_ALIGN LV_ATTRIBUTE_LARGE_CONST LV_ATTRIBUTE_IMG_PHOTO2 uint8_t photo2_map[] = {<br />
^~~~~~~~~~<br />
H:\Bas\Arduino\Sketches\T-RGB\factory\photo2.c:1959:7: error: unknown type name 'lv_img_dsc_t'<br />
const lv_img_dsc_t photo2 = {<br />
^~~~~~~~~~~~<br />
H:\Bas\Arduino\Sketches\T-RGB\factory\photo2.c:1960:3: error: field name not in record or union initializer<br />
.header.cf = LV_IMG_CF_TRUE_COLOR,<br />
^<br />
<strong>And a lot more, that cannot be included in this message (too many characters)</strong></p>
<p dir="auto">Compilation error: unknown type name 'LV_ATTRIBUTE_LARGE_CONST'</p>
]]></description><link>https://www.community.lilygo.cc/post/809</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/809</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Sat, 10 Jun 2023 11:28:43 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Sat, 10 Jun 2023 11:24:44 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
Hi Terry, this tick-tock works! I see the output in the Serial monitor<br />
So, connection is OK</p>
<p dir="auto">I use the board LilyGo T-Display-S3 an I can now compile, upload and run the display.ino example:-)</p>
<p dir="auto">However, the factory.ino gives me many errors that seem to be related to the lvgl library. There are many lvgl libraries, which one do I need to install for the factory.ino to compile?</p>
<p dir="auto">Again, your help is really preventing me from giving up!!</p>
]]></description><link>https://www.community.lilygo.cc/post/808</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/808</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Sat, 10 Jun 2023 11:24:44 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Fri, 09 Jun 2023 22:46:58 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a> Simple Serial Monitor test code:</p>
<pre><code>bool ticktock = true;

void setup() {
Serial.begin (115200);
}

void loop() {
ticktock = !ticktock;
  if (ticktock) {
    Serial.println("tick");  
  } else {
    Serial.println("tock");
  }
delay (1000);
}
</code></pre>
]]></description><link>https://www.community.lilygo.cc/post/807</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/807</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Fri, 09 Jun 2023 22:46:58 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Fri, 09 Jun 2023 22:27:15 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> The S3 ESP32 variant can be tricky with connection.<br />
On Arduino IDE select ESP32S3-Dev Module<br />
If you do not see a port, press the Boot button and hold. Then press Reset button and release, then release Boot. See if a port opens up.<br />
This is just a start, get back to me of you need more help!<br />
-Terry</p>
]]></description><link>https://www.community.lilygo.cc/post/806</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/806</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Fri, 09 Jun 2023 22:27:15 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Fri, 09 Jun 2023 19:47:00 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a><br />
Hi Terry, after some experiments with boards I now get this error:</p>
<p dir="auto">Sketch uses 735085 bytes (23%) of program storage space. Maximum is 3145728 bytes.<br />
Global variables use 20632 bytes (6%) of dynamic memory, leaving 307048 bytes for local variables. Maximum is 327680 bytes.<br />
<a href="http://esptool.py" rel="nofollow ugc">esptool.py</a> v4.5.1<br />
Serial port COM16</p>
<p dir="auto">A fatal error occurred: Could not open COM16, the port doesn't exist<br />
Failed uploading: uploading error: exit status 2</p>
<p dir="auto">However, I'm sure the board is connected to COM16. Obviously something wrong in my installation, but what....? I'm lost. I re-installed most of the environment, but still this error. It also fails on other ports (changed port in windows device manager).<br />
Looks like <a href="http://esptool.py" rel="nofollow ugc">esptool.py</a> v4.5.1 has a problem somewhere, but I do not know what is wrong or how to fix this.</p>
<p dir="auto">Your help is highly appreciated !!!</p>
]]></description><link>https://www.community.lilygo.cc/post/805</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/805</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Fri, 09 Jun 2023 19:47:00 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Fri, 09 Jun 2023 19:11:59 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/612">@teastain2</a> Yes I've downloaded the examples from there but none will compile in the Arduino IDE. I am not certain which board I should select though. At this moment I'm just interested in getting the basics running, not more than a simple "Hello world" example. From there I can develop the rest.<br />
I'm building an altitude-indicator for my gliderplane, using the BMP280 sensor. I have it running on an Arduino Nano, but I want to display clock-like hands on a round display.<br />
Any help is welcome, since I cannot get any example to compile and upload.<br />
(I know the Nano is an AVR board and the T-RGB is ESP32, so modifications will be necessary)</p>
]]></description><link>https://www.community.lilygo.cc/post/804</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/804</guid><dc:creator><![CDATA[basvandepavert]]></dc:creator><pubDate>Fri, 09 Jun 2023 19:11:59 GMT</pubDate></item><item><title><![CDATA[Reply to T-rgb (half circle) on Thu, 08 Jun 2023 20:18:51 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://www.community.lilygo.cc/uid/830">@basvandepavert</a> What kind of errors? Have you gotten a basic test sketch to compile and run?<br />
Have you been to the GitHub repository?<br />
<a href="https://github.com/Xinyuan-LilyGO/T-RGB" rel="nofollow ugc">https://github.com/Xinyuan-LilyGO/T-RGB</a><br />
-Terry</p>
]]></description><link>https://www.community.lilygo.cc/post/801</link><guid isPermaLink="true">https://www.community.lilygo.cc/post/801</guid><dc:creator><![CDATA[teastain2]]></dc:creator><pubDate>Thu, 08 Jun 2023 20:18:51 GMT</pubDate></item></channel></rss>