How to Connect an I2C Lcd Display to an Arduino Uno Tutorial

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http://www.techydiy.org/how-to-connect-an-i2c-lcd-display-to-an-arduino-uno/ 16x2 i2c display: Amazon USA https://amzn.to/2Nyzxab Amazon UK https://amzn.to/2Slvzsl Amazon Canada https://amzn.to/2t9ewKO Amazon India https://clnk.in/gylZ Amazon Australia https://amzn.to/2HYmS2b Amazon Deutschland https://amzn.to/2UPe00t Amazon France https://amzn.to/2HXQfl7 Amazon Italia https://amzn.to/2ULL8WH Amazon España https://amzn.to/2Seg8Sq Ebay.com https://ebay.to/2O3w2JL Ebay.de https://ebay.to/2A2CfTs Ebay.co.uk https://ebay.to/2zWCTBG Ebay.ca https://ebay.to/2L9KxOv Ebay.nl https://ebay.to/2Lqj1eB Ebay.fr https://ebay.to/2uAn2DK Ebay.com.au https://ebay.to/2mx6vfz Arduino Kit: Amazon.com (USA) https://amzn.to/2O3JjSw Amazon.co.uk (UK) https://amzn.to/2DHoJod Amazon.in (India) https://clnk.in/gyl0 Amazon.de (Deutschland) https://amzn.to/2DJ0few Amazon.es (España ) https://amzn.to/2DK9Em6 Amazon.fr (France) https://amzn.to/2zmAP31 Amazon.it (Italia) https://amzn.to/2S890T6 Amazon.ca (Canada) https://amzn.to/2TGhgvd Amazon.com.au (Australia) https://amzn.to/2PVx3s5 Ebay.com https://ebay.to/2O4BEn1 Ebay.de https://ebay.to/2mwkLVB Ebay.co.uk https://ebay.to/2uD8P9c Ebay.ca https://ebay.to/2JGp1Lv Ebay.nl https://ebay.to/2LzIzCZ Ebay.fr https://ebay.to/2LpPzWo Ebay.com.au https://ebay.to/2LrHyQB FAQ: Q. My lcd display is not showing anything? Try changing the contrast potentiometer on the back of the display. Q. The lcd display doesn't show anything or random just characters? Your backpack might be wired differently. Try this line instead: LiquidCrystal_I2C lcd(0x27, 4, 5, 6, 0, 1, 2, 3, 7, POSITIVE); // Change the 0x27 i2c address to your i2c address Q. Com port not found errors Run the windows "device manager", expand "Ports (COM & LPT)". Check that the serial (com) port exists. Check the board is plugged in to a usb port. Check the device driver is loaded. Some clones use the CH340 driver, you will need to download and install it. Q. The scanner sketch can't find the i2c address? Check the wiring. Some Arduino models use different pins for the I2C connections, if you are not using an UNO then check which pins you need to use. Please visit the techydiy Amazon com shop and help support the channel: https://www.amazon.com/shop/techydiyorguk NewliquidCrystal library: https://github.com/fmalpartida/New-LiquidCrystal Select the Code button and download zip ( Old link) https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home i2c Scanner: http://playground.arduino.cc/Main/I2cScanner Arduino IDE software: https://www.arduino.cc/ SUBSCRIBE TECHYDIY CHANNEL: http://bit.ly/2des2sq SUBSCRIBE TECHYDIY REVIEWS CHANNEL: http://bit.ly/2dGwUCl techydiy ► http://www.techydiy.org Facebook ► http://facebook.com/techydiy Twitter ► http://twitter.com/techydiy Pinterest ► http://www.pinterest.com/techydiy