{"id":2505,"date":"2025-09-16T14:58:06","date_gmt":"2025-09-16T21:58:06","guid":{"rendered":"https:\/\/www.crystalfontz.com\/blog\/?p=2505"},"modified":"2025-10-17T07:40:39","modified_gmt":"2025-10-17T14:40:39","slug":"update-the-spinning-logo-on-your-eve-display","status":"publish","type":"post","link":"https:\/\/www.crystalfontz.com\/blog\/update-the-spinning-logo-on-your-eve-display\/","title":{"rendered":"Update the Spinning Logo on Your EVE Display"},"content":{"rendered":"\n<p>Our <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/eve\/\" target=\"_self\" title=\"EVE stands for Embedded Video Engine and refers to a graphic controller from Bridgetek\/FTDI. &nbsp; EVE graphic controllers are easy to use and can control the display, touch, backlight, and audio features of an embedded system, with each appearing to the host MCU as a memory-mapped SPI device. The host MCU sends commands and data&hellip;\" class=\"encyclopedia\">EVE<\/a> demo code includes our spinning logo bouncing around the display. This image is saved in the program memory of the Seeeduino, so it has to be small.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1: Create Your Logo Image<\/h2>\n\n\n\n<p>The program memory on the Seeeduino is quire small, so the logo image has to compress to be quite small as well. We use a few techniques to make the spinning image small enough to fit:<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<ol class=\"wp-block-list\">\n<li>We use a small image to start with. Our image is usually between 300-340 pixels square. But the actual image section is 240&times;240. We do this so that as the logo bounces around the screen none of it is ever cut off by the edges of the screen. <\/li>\n\n\n\n<li>To make the smallest possible image to fit in the program memory of the seeeduino, we make our png with a lot of transparent space as that compresses much smaller. So in addition to the pixels around the edge of the 240&times;240 section, there is a lot of transparent space inside the image. The checkerboard in the image below shows where our image is transparent.<\/li>\n\n\n\n<li>We use photoshop to control the number of colors used (4 + transparent), which will additionally reduce the size of the compressed image.<\/li>\n\n\n\n<li>Use the EVE Asset Builder Tool to compress the image. This uses <a href=\"https:\/\/en.wikipedia.org\/wiki\/Zlib\">ZLIB compression<\/a>.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"443\" height=\"395\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-11.png\" alt=\"\" class=\"wp-image-2512\" style=\"width:284px;height:auto\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-11.png 443w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-11-300x267.png 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-11-120x107.png 120w\" sizes=\"auto, (max-width: 443px) 100vw, 443px\"><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2: Convert Your Image to C<\/h2>\n\n\n\n<p>This is a multi-step process which can all be completed using the <a href=\"https:\/\/brtchip.com\/eab\/\">EVE Asset Builder v4.x (EAB).<\/a><\/p>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-b93cabc5 wp-block-group-is-layout-flex\">\n<ul class=\"wp-block-list\">\n<li>Open a new session of EVE Asset Builder. <\/li>\n\n\n\n<li>Open the first <a href=\"https:\/\/www.crystalfontz.com\/blog\/glossary\/tab\/\" target=\"_self\" title=\"TAB stands for tape automated bonding. Some of Crystalfontz's displays use a TAB style tail &nbsp;that should be soldered directly to corresponding pads on a PCB using a hot-bar soldering machine. High volume contract manufacturers will be familiar with this type of construction and its assembly methods.&nbsp;Hot-bar soldering machines designed for prototype, rework or repair&hellip;\" class=\"encyclopedia\">tab<\/a>: Image Utilities. <\/li>\n\n\n\n<li>Click Pre82X on the left hand side and select the EVE chip for your module. Check the module datasheet if you&rsquo;re not sure which chip is in your module.<\/li>\n\n\n\n<li>Set the bitmap format to ARGB2.<\/li>\n\n\n\n<li>Add you image to the Input Files box and update the Output Folder if desired.<\/li>\n\n\n\n<li>Click convert.<\/li>\n<\/ul>\n\n\n\n<figure data-wp-context='{\"imageId\":\"69d86340a8ef5\"}' data-wp-interactive=\"core\/image\" data-wp-key=\"69d86340a8ef5\" class=\"wp-block-image wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/attachment.freshdesk.com\/inline\/attachment?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NzIxNjU0ODM2OTcsImRvbWFpbiI6Im5ld2FjY291bnQxNjM0MjE2MjY1ODk4LmZyZXNoZGVzay5jb20iLCJhY2NvdW50X2lkIjoyMDkyMDA1fQ.uoZgXZAoHIBCkEEazTU8dTFFBjDE91KoE-x0IkJQzwk\" alt=\"\"><button class=\"lightbox-trigger\" type=\"button\" aria-haspopup=\"dialog\" aria-label=\"Enlarge\" data-wp-init=\"callbacks.initTriggerButton\" data-wp-on--click=\"actions.showLightbox\" data-wp-style--right=\"state.imageButtonRight\" data-wp-style--top=\"state.imageButtonTop\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\"><\/path>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<ul class=\"wp-block-list wp-container-content-958eb9dc\">\n<li>Change to the Asset Compressor tab.<\/li>\n\n\n\n<li>Add the .raw file that was output by EAB to the Input Files box.<\/li>\n\n\n\n<li>We use the zlib compression.<\/li>\n\n\n\n<li>Hit compress.<\/li>\n<\/ul>\n\n\n\n<figure data-wp-context='{\"imageId\":\"69d86340a9225\"}' data-wp-interactive=\"core\/image\" data-wp-key=\"69d86340a9225\" class=\"wp-block-image wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/attachment.freshdesk.com\/inline\/attachment?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NzIxNjU0ODM4MjAsImRvbWFpbiI6Im5ld2FjY291bnQxNjM0MjE2MjY1ODk4LmZyZXNoZGVzay5jb20iLCJhY2NvdW50X2lkIjoyMDkyMDA1fQ.T6Hr4FjOEmUN4D9Aj-c__D8so5wehuWQJg8lJEdyqLQ\" alt=\"\" style=\"object-fit:cover\"><button class=\"lightbox-trigger\" type=\"button\" aria-haspopup=\"dialog\" aria-label=\"Enlarge\" data-wp-init=\"callbacks.initTriggerButton\" data-wp-on--click=\"actions.showLightbox\" data-wp-style--right=\"state.imageButtonRight\" data-wp-style--top=\"state.imageButtonTop\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\"><\/path>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-ff976b70 wp-block-group-is-layout-flex\">\n<ul class=\"wp-block-list wp-container-content-958eb9dc\">\n<li>Finally, open the BIN2C tab.<\/li>\n\n\n\n<li>Input the .zlib file that was just created by the Asset Compressor.<\/li>\n\n\n\n<li>To match our demo code, use hexadecimal as the output Notation and 16 items per line.<\/li>\n\n\n\n<li>Click convert.<\/li>\n<\/ul>\n\n\n\n<figure data-wp-context='{\"imageId\":\"69d86340a9481\"}' data-wp-interactive=\"core\/image\" data-wp-key=\"69d86340a9481\" class=\"wp-block-image wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/attachment.freshdesk.com\/inline\/attachment?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NzIxNjU0ODQyMDgsImRvbWFpbiI6Im5ld2FjY291bnQxNjM0MjE2MjY1ODk4LmZyZXNoZGVzay5jb20iLCJhY2NvdW50X2lkIjoyMDkyMDA1fQ.TUmjq0hSdR2OmrGdtvyojH_XK69d8LPztcb-YMLVIb4\" alt=\"\" style=\"object-fit:cover\"><button class=\"lightbox-trigger\" type=\"button\" aria-haspopup=\"dialog\" aria-label=\"Enlarge\" data-wp-init=\"callbacks.initTriggerButton\" data-wp-on--click=\"actions.showLightbox\" data-wp-style--right=\"state.imageButtonRight\" data-wp-style--top=\"state.imageButtonTop\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewbox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\"><\/path>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Step 3: Update the Logo Image in our Demo Code<\/h2>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-top\"><div class=\"wp-block-media-text__content\">\n<p>Open the generated .c file. It will have your array and call out the array size. <\/p>\n\n\n\n<p>Copy the array into Round_logos.cpp.<\/p>\n\n\n\n<p>This is the ARGB2 logo. <\/p>\n\n\n\n<p>To make the PNG logo, simply drag your PNG into the BIN2C Input Box and hit compress. Then copy the output array into the variable called xxxx_PNG_Logo.<\/p>\n\n\n\n<p>Make sure you also update Round_Logos.h with the correct array sizes (your array sizes may be different, but these are the sizes for the image I used):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define LOGO_SIZE_ARGB2 &nbsp;(2480)\n...\n#define LOGO_SIZE_PNG  (4927)<\/code><\/pre>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"938\" height=\"800\" src=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-12.png\" alt=\"\" class=\"wp-image-2513 size-full\" srcset=\"https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-12.png 938w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-12-300x256.png 300w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-12-120x102.png 120w, https:\/\/www.crystalfontz.com\/blog\/wp-content\/uploads\/image-12-768x655.png 768w\" sizes=\"auto, (max-width: 938px) 100vw, 938px\"><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Step 4: Show your Logo on the Display <\/h2>\n\n\n\n<p>In the CFA10xxx_defines.h file, make sure the LOGO_DEMO is defined (set to 1). If you want to use the compressed image, set LOGO_PNG_0_ARGB2_1 to 1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Contact Us<\/h3>\n\n\n\n<p class=\"has-black-color has-text-color\">If you have any questions, we can be reached at support@crystalfontz.com, we also provide <a href=\"https:\/\/www.crystalfontz.com\/contact.php\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">chat and telephone support<\/a> Monday through Friday during our open hours.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color\">We love to hear about your projects! Find us around the web (<a href=\"https:\/\/www.youtube.com\/user\/CrystalfontzAmerica\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">YouTube<\/a>,&nbsp;<a href=\"https:\/\/www.facebook.com\/CrystalfontzAmericaInc\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Facebook<\/a>,&nbsp;<a href=\"https:\/\/www.instagram.com\/crystalfontz\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Instagram<\/a>,&nbsp;<a href=\"https:\/\/www.linkedin.com\/company\/crystalfontz-america-inc\/?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">LinkedIn<\/a>, &nbsp;<a href=\"https:\/\/twitter.com\/Crystalfontz?mc_cid=364fa8437c&amp;mc_eid=%5BUNIQID%5D\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>, <a href=\"https:\/\/forum.crystalfontz.com\" target=\"_blank\" rel=\"noreferrer noopener\">Forum<\/a>) and let us know what you&rsquo;re working on.<\/p>\n\n\n\n<!-- Begin Mailchimp Signup Form -->\n<link href=\"\/\/cdn-images.mailchimp.com\/embedcode\/horizontal-slim-10_7.css\" rel=\"stylesheet\" type=\"text\/css\">\n<style type=\"text\/css\">\n\t#mc_embed_signup{background:#fff; clear:left; font:14px Helvetica,Arial,sans-serif; width:100%;}\n<\/style>\n<div id=\"mc_embed_signup\">\n<form action=\"https:\/\/crystalfontz.us17.list-manage.com\/subscribe\/post?u=8a880dec17face7992ae6ef10&amp;id=7268847031\" method=\"post\" id=\"mc-embedded-subscribe-form\" name=\"mc-embedded-subscribe-form\" class=\"validate\" target=\"_blank\" novalidate=\"\">\n    <div id=\"mc_embed_signup_scroll\">\n\t<label for=\"mce-EMAIL\">Subscribe to our Newsletter<\/label>\n\t<input type=\"email\" value=\"\" name=\"EMAIL\" class=\"email\" id=\"mce-EMAIL\" placeholder=\"email address\" required=\"\">\n    <!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->\n    <div style=\"position: absolute; left: -5000px;\" aria-hidden=\"true\"><input type=\"text\" name=\"b_8a880dec17face7992ae6ef10_7268847031\" tabindex=\"-1\" value=\"\"><\/div>\n    <div class=\"clear\"><input type=\"submit\" value=\"Subscribe\" name=\"subscribe\" id=\"mc-embedded-subscribe\" class=\"button\"><\/div>\n    <\/div>\n<\/form>\n<\/div>\n\n<!--End mc_embed_signup-->\n","protected":false},"excerpt":{"rendered":"<p>Our EVE demo code includes our spinning logo bouncing around the display. This image is saved in the program memory of the Seeeduino, so it has to be small. Step 1: Create Your Logo Image The program memory on the Seeeduino is quire small, so the logo image has to compress to be quite small [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":2512,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[4],"tags":[139,140,135,115],"class_list":["post-2505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-frequently-asked-questions","tag-eve-display","tag-faq","tag-how-to-guide","tag-tft-lcd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Update the Spinning Logo on Your EVE Display<\/title>\n<meta name=\"description\" content=\"Update the Spinning Logo on Your EVE Display : Our EVE demo code includes our spinning logo bouncing around the display. 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