{"id":42764,"date":"2022-05-30T08:00:39","date_gmt":"2022-05-30T06:00:39","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/how-to-connect-lcd-display-to-arduino\/"},"modified":"2022-05-30T06:00:42","modified_gmt":"2022-05-30T04:00:42","slug":"how-to-connect-lcd-display-to-arduino","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/how-to-connect-lcd-display-to-arduino\/","title":{"rendered":"How to connect LCD display to Arduino?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time:<\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span><p>Arduino is one of the most popular development boards among electronics and robotics engineers. Learn how to connect a display to it.<\/p>\n<h2>Which display for the arduino?<\/h2>\n<p>Before you learn how to connect your display to <a href=\"https:\/\/botland.store\/439-arduino-basic-boards\" data-wpel-link=\"internal\">Arduino<\/a>, <b>it&#8217;s worth to think about what exact task it&#8217;s going to perform<\/b>, to choose the right type and model of display. Commonly used with Arduino are 2\u00d716 <a href=\"https:\/\/botland.store\/392-alphanumeric-and-graphic-displays\" data-wpel-link=\"internal\">alphanumeric LCD displays<\/a> (capable of displaying 2 lines of 16 characters each) with green or blue backlight.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/wyswietlacz-lcd-2x16-znakow-zielony-justpi-300x136.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/wyswietlacz-lcd-2x16-znakow-zielony-justpi-300x136.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/wyswietlacz-lcd-2x16-znakow-zielony-justpi.jpg 736w\" alt=\"2x16 LCD\" width=\"300\" height=\"136\" \/><figcaption>LCD 2&#215;16 display<\/figcaption><\/figure>\n<p>In the offer of electronics shops you will often find <a href=\"https:\/\/botland.store\/790-e-paper-displays\" data-wpel-link=\"internal\">e-paper displays<\/a> as well &#8211; their main advantage over other screens is <b>much lower energy consumption<\/b> (due to the type of technology) and a unique <b>image that looks literally as if the content was written on paper<\/b>. The biggest disadvantage of this solution is of course the relatively high price per unit.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/e-paper-e-ink-b-29-296x128px-wyswietlacz-trojkolorowy-bez-modulu-waveshare-13276-300x151.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/e-paper-e-ink-b-29-296x128px-wyswietlacz-trojkolorowy-bez-modulu-waveshare-13276-300x151.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/e-paper-e-ink-b-29-296x128px-wyswietlacz-trojkolorowy-bez-modulu-waveshare-13276.jpg 466w\" alt=\"E-paper display\" width=\"300\" height=\"151\" \/><figcaption>E-ink \/ E-paper display<\/figcaption><\/figure>\n<p>Shops often also offer larger versions of LCD displays, 8-segment displays, touch screens and many other solutions. <b>The choice should be made based on the needs<\/b> &#8211; for example, if the project is commercial and the device will be used in sunlight, and low price is not a priority &#8211; no backlighting will be an advantage and an e-paper display will work well for this. In a project where the device will only need to display a single number &#8211; an <a href=\"https:\/\/botland.store\/706-segment-displays-matrices\" data-wpel-link=\"internal\">8-segment display<\/a> will work well. Nevertheless, the most popular choice remains the 2\u00d716 LCD, which <b>works well for most projects<\/b> and is particularly popular with electronics beginners and students.<\/p>\n<h2>What to prepare for connecting the display to the Arduino?<\/h2>\n<p>Due to its high popularity and usefulness, below we will describe how to connect a <b>2\u00d716 LCD display<\/b>. This type of equipment is usually sold as a display on a laminated PCB &#8211; some products have the <a href=\"https:\/\/botland.store\/other-converters\/2352-i2c-converter-for-hd44780-lcd-display-5903351248693.html\" data-wpel-link=\"internal\">I2C converter<\/a> soldered in, but some models do not have it. In this case such a <b>converter<\/b> must also be prepared to realise the project. To complete the whole task it will be practical to use a <a href=\"https:\/\/botland.store\/53-breadoards\" data-wpel-link=\"internal\"><b>contact board<\/b><\/a>, thanks to which you will be able to reuse each of the used elements many times &#8211; also in other projects. Prepare also a <b>set of connection <a href=\"https:\/\/botland.store\/82-various-wires\" data-wpel-link=\"internal\">wires<\/a><\/b> (with male and female plugs on their ends) and <b><a href=\"https:\/\/botland.store\/81-connectors-goldpin\" data-wpel-link=\"internal\">goldpin<\/a> strips<\/b> (male and female).<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/plytka-stykowa-justpi-400-otworow-300x300.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/plytka-stykowa-justpi-400-otworow-300x300.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/plytka-stykowa-justpi-400-otworow-150x150.jpg 150w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/plytka-stykowa-justpi-400-otworow-768x768.jpg 768w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/plytka-stykowa-justpi-400-otworow.jpg 800w\" alt=\"contact board\" width=\"300\" height=\"300\" \/><br \/>\n<a role=\"button\" href=\"https:\/\/botland.store\/53-breadoards\" data-wpel-link=\"internal\"><br \/>\nCHECK AT STORE<br \/>\n<\/a><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/konwerter-i2c-dla-wyswietlacza-lcd-hd44780-300x300.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/konwerter-i2c-dla-wyswietlacza-lcd-hd44780-300x300.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/konwerter-i2c-dla-wyswietlacza-lcd-hd44780-150x150.jpg 150w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/konwerter-i2c-dla-wyswietlacza-lcd-hd44780-768x768.jpg 768w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/konwerter-i2c-dla-wyswietlacza-lcd-hd44780.jpg 800w\" alt=\" width=\"300\" height=\"300\" \/><br \/>\n<a role=\"button\" href=\"https:\/\/botland.store\/other-converters\/2352-i2c-converter-for-hd44780-lcd-display-5903351248693.html\" data-wpel-link=\"internal\"><br \/>\nCHECK AT STORE<br \/>\n<\/a><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/przewody-polaczeniowe-mesko-meskie-65szt-300x300.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/przewody-polaczeniowe-mesko-meskie-65szt-300x300.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/przewody-polaczeniowe-mesko-meskie-65szt-150x150.jpg 150w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/przewody-polaczeniowe-mesko-meskie-65szt-768x768.jpg 768w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/przewody-polaczeniowe-mesko-meskie-65szt.jpg 800w\" alt=\"connection cables\" width=\"300\" height=\"300\" \/><br \/>\n<a role=\"button\" href=\"https:\/\/botland.store\/82-various-wires\" data-wpel-link=\"internal\"><br \/>\nCHECK AT STORE<br \/>\n<\/a><\/p>\n<h2>How to connect a display to the Arduino?<\/h2>\n<p>The first step is to <b>solder a female goldpin to GPIO pins on Arduino board<\/b>. Thanks to this, you will be able to connect any device in any configuration and use for example dedicated frontends (e.g. with male goldpins soldered on). If the I2C converter does not have male leads, a goldpin strip should be soldered there as well. Both components should be connected by correct positioning on the contact board. Converter should have 4 pins on output &#8211; it will be power supply (VCC), ground (GND) and SDA and SCL.<\/p>\n<p>Before connecting the power supply <b>make sure exactly what voltage your display requires<\/b> &#8211; it will be 3.3 V or 5 V. Based on this information, connect the VCC pin from your converter to the corresponding voltage on your <a href=\"https:\/\/botland.store\/439-arduino-basic-boards\" data-wpel-link=\"internal\">Arduino board<\/a>. Of course, you can power the display with an external power supply, but this will only make sense if you connect more components to the board. The GND pin should be connected to the GND pin on the Arduino, and the SDA and SCL pins to the analog inputs on the board.<\/p>\n<p>After connecting the power supply to the board, the display should work. However, it&#8217;s worth to remember, that <b>in order to display anything, you have to program any content first<\/b>. For example your name or a sequence of numbers. If the image is not clearly visible, there is a brightness or contrast control on each display. If a potentiometer is not built in, it is certainly possible to take the appropriate pin out on a contact board, where you can connect the appropriate resistor (or potentiometer) yourself and make the image readable.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/Arduino-LCD.jpg\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/Arduino-LCD.jpg 1012w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/Arduino-LCD-300x184.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2022\/05\/Arduino-LCD-768x471.jpg 768w\" alt=\"Lcd connection schematic\" width=\"800\" height=\"491\" \/><figcaption>Scheme for connecting LCD with built-in I2C converter to Arduino<\/figcaption><\/figure>\n<h2>Other ways to connect the display to the Arduino<\/h2>\n<p>Oczywi\u015bcie sposob\u00f3w pod\u0142\u0105czania wy\u015bwietlacza jest bardzo wiele \u2013 te\u00a0r\u00f3\u017cni\u0105 si\u0119 mi\u0119dzy sob\u0105 przede wszystkim w\u00a0zale\u017cno\u015bci od\u00a0wy\u015bwietlaczy, ale\u00a0tak\u017ce\u00a0<b>w\u00a0zale\u017cno\u015bci od\u00a0przyzwyczaje\u0144<\/b>\u00a0elektronika oraz\u00a0<b>od\u00a0zadania jakie wy\u015bwietlacz ma\u00a0spe\u0142nia\u0107<\/b>. Nawet w\u015br\u00f3d najprostszych wy\u015bwietlaczy LCD 2\u00d716 r\u00f3\u017cnice mi\u0119dzy modelami mog\u0105 by\u0107 stosunkowo du\u017ce, dlatego<b>\u00a0za\u00a0ka\u017cdym razem zapoznajmy si\u0119 z\u00a0dokumentacj\u0105 techniczn\u0105<\/b>, nawet jeszcze przed\u00a0jego kupnem, aby unikn\u0105\u0107 niemi\u0142ego zaskoczenia, kiedy staniemy przed\u00a0problemem z\u00a0pod\u0142\u0105czeniem lub przedwczesn\u0105 diagnoz\u0105 o\u00a0uszkodzeniu sprz\u0119tu.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2021\/05\/arduino-1-300x300.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2021\/05\/arduino-1-300x300.jpg 300w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2021\/05\/arduino-1-150x150.jpg 150w, https:\/\/botland.store\/blog\/sandbox\/wp-content\/uploads\/2021\/05\/arduino-1.jpg 540w\" alt=\"Arduino UNO\" width=\"300\" height=\"300\" \/><br \/>\n<a role=\"button\" href=\"https:\/\/botland.store\/439-arduino-basic-boards\" data-wpel-link=\"internal\"><br \/>\nCHECK AT STORE<br \/>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>LCD displays are a very good complement to devices and significantly improve their functionality. But how to properly connect them, for example to an Arduino minicomputer?<\/p>\n","protected":false},"author":20,"featured_media":42765,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[335],"tags":[414,442],"class_list":["post-42764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino-en","tag-accessories","tag-minicomputers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to connect LCD display to Arduino? - Botland<\/title>\n<meta name=\"description\" content=\"Find out how you can connect the display to the Arduino board. 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