![\"\"](\"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/16x4_lcd_module.jpg?resize=678%2C254\")
<\/p>\n<\/p>\n
This post describes how to use a 16\u00d74 Liquid Crystal Display unit to display the text \u201cHello World\u201d.<\/p>\n
<\/p>\n
![\"\"](\"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/10\/16x4_lcd_screen_post_image.jpg?resize=350%2C350\")
<\/p>\n
In this review I am using a 16\u00d74 Liquid Crystal Display module,\u00a0this LCD has 16 character\u00a0panels per row, and four rows.<\/p>\n
Using the Arduino we can control this and write any supported letters to the display. This is one of the simplest ways of displaying information from an Arduino.<\/p>\n
The interface to this LCD display uses the most common 16 pin display interface. The only difference between this one is that instead of having the standard two rows, this module has four.<\/p>\n
A nice feature of this LCD module is that you can easily configure the contrast. I am going to add a potentiometer to manually tweak the contrast levels. However, you can use a standard resistor instead of using a potentiometer. This may involve some trial and improvement to find the value which gives you the desired contrast.<\/p>\n
To wire the LCD module up to the Arduino we need to use 6 digital pins. The below diagram shows the full wiring for the LCD module.<\/p>\n
![\"\"](\"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/lcd_16x4_hello_world_bb.jpg?resize=678%2C453\")
<\/p>\n
The following pins of the module need to be connected as below, these are listed from left to right:<\/p>\n
The 10k potentiometer is used to set the brightness of the screen.<\/p>\n
The basic Hello World program sets up the LCD by defining the pins attached to the Arduino.<\/p>\n
#include <LiquidCrystal.h>\r\n\r\nLiquidCrystal lcd(12, 11, 5, 4, 3, 2);\r\n\r\nvoid setup() {\r\n\u00a0 \u00a0 lcd.begin(16, 4);\r\n\u00a0 \u00a0 lcd.print("hello, world!");\r\n}\r\n\r\nvoid loop() {\r\n\u00a0 \u00a0 \/\/Do nothing else\r\n}<\/pre>\nOnce the\u00a0lcd<\/code>\u00a0variable is created we initialize it with 16 characters on four lines and then print Hello World.<\/p>\nReview of the 16\u00d74 Liquid Crystal Display Module<\/h2>\n
Overall the 16\u00d74 LCD module is very useful to display information. Since it is larger than the standard 16×2 LCD module this can be a quick expansion if you need a little more space. Since many of these modules support the same interface you can easily replace the module with similar LCD screens.<\/p>\n
The one downside is that, like the 16×2 LCD screen, it requires 6 pins on the Arduino to operate which may cause issues. This is something to bear in mind if you are looking at Arduino like clones which may have fewer pins.<\/p>\n
In a later tutorial I will show how you can make it display data from a computer and sensor values.<\/p>\n","protected":false},"excerpt":{"rendered":"
This post describes how to use a 16\u00d74 Liquid Crystal Display unit to display the text \u201cHello World\u201d.<\/p>\n","protected":false},"author":1,"featured_media":1586,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Over the weekend I wrote about how to use a 16x4 #LCD screen with the #Arduino to write Hello World","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[97],"tags":[132,288,289],"class_list":["post-1393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronics","tag-arduino","tag-lcd","tag-liquid-crystal-display"],"wppr_data":{"cwp_meta_box_check":"No"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/10\/16x4_lcd_screen_main_image.jpg?fit=800%2C800&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p2toWX-mt","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1014,"url":"https:\/\/chewett.co.uk\/blog\/1014\/setting-up-a-16x2-liquid-crystal-display-to-show-hello-world\/","url_meta":{"origin":1393,"position":0},"title":"Setting up a 16×2 Liquid Crystal Display to show Hello World","author":"Chewett","date":"July 28, 2018","format":false,"excerpt":"This post describes how to use a 16x2 Liquid Crystal Display unit as included in the Arduino Starter Kit\u00a0to display the text \"Hello World\". Overview of the 16x2 Liquid Crystal Display Module In this review I am using the 16x2 Liquid Crystal Display module from the Arduino Starter Kit. This\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/chewett.co.uk\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/07\/16x2_lcd_screen_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/07\/16x2_lcd_screen_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/07\/16x2_lcd_screen_post_icon.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/07\/16x2_lcd_screen_post_icon.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1380,"url":"https:\/\/chewett.co.uk\/blog\/1380\/displaying-temperature-sensor-data-on-a-liquid-crystal-display-with-arduino\/","url_meta":{"origin":1393,"position":1},"title":"Displaying temperature sensor data on a Liquid Crystal Display with Arduino","author":"Chewett","date":"August 4, 2018","format":false,"excerpt":"This blog post expands on displaying Hello World on a Liquid Crystal Display to show temperature sensor values on this display. Combining the LCD display and\u00a0DS18B20 Temperature Sensor This project combines two of my favourite pieces of electrical components the 16x2 LCD display and the DS18B20 temperature sensor. Both have\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/chewett.co.uk\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/08\/16x2_lcd_screen_temp_sensor.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/08\/16x2_lcd_screen_temp_sensor.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/08\/16x2_lcd_screen_temp_sensor.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/08\/16x2_lcd_screen_temp_sensor.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1517,"url":"https:\/\/chewett.co.uk\/blog\/1517\/128x32-i2c-ssd1306-oled-display-module-screen-for-arduino-review-and-code\/","url_meta":{"origin":1393,"position":2},"title":"128×32 I2C\u00a0SSD1306 OLED Display Module Screen for Arduino Review and Code","author":"Chewett","date":"September 29, 2018","format":false,"excerpt":"Today I review the 128x32\u00a0I2C\u00a0SSD1306 OLED Display Module Screen for Arduino and provide example code. Overview of the 128x32\u00a0I2C\u00a0SSD1306 OLED Display Module This OLED display module allows you to display any content you want on a small display screen. This unit is a single colour display. Using OLED technology this\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/chewett.co.uk\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x32_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x32_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x32_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x32_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1521,"url":"https:\/\/chewett.co.uk\/blog\/1521\/128x64-i2c-sh1106-oled-display-module-screen-for-arduino-review-and-code\/","url_meta":{"origin":1393,"position":3},"title":"128×64 I2C\u00a0SH1106 OLED Display Module Screen for Arduino Review and Code","author":"Chewett","date":"December 8, 2018","format":false,"excerpt":"Today I review the 128x64 I2C\u00a0SH1106 OLED Display Module Screen for Arduino and provide example code. Overview of the 128x64 I2C\u00a0SH1106 OLED Display Module This rectangular OLED display module gives you a 128x64 pixel screen to display content on. This is a single colour model allowing for each pixel to\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/chewett.co.uk\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x64_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x64_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x64_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/chewett.co.uk\/blog\/wp-content\/uploads\/2018\/09\/128x64_oled_post_icon.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2549,"url":"https:\/\/chewett.co.uk\/blog\/2549\/using-the-128x64-i2c-sh1106-oled-display-module-screen-with-a-wemos-d1-mini-esp8266\/","url_meta":{"origin":1393,"position":4},"title":"Using the 128\u00d764 I2C SH1106 OLED Display Module Screen with a WeMos D1 Mini (ESP8266)","author":"Chewett","date":"September 26, 2020","format":false,"excerpt":"In this blog post I talk about how you can use a 128\u00d764 I2C\u00a0SH1106 OLED Display Module Screen with a WeMos D1 Mini (ESP8266) using the Arduino IDE. Summary of the 128\u00d764 I2C\u00a0SH1106 OLED Display Module Screen The SH1106 OLED display module is a nice 128x64 pixel screen. 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