![]() ![]() More information about I2C/TWI (Wikipedia) Your project, this LCD module actually uses no more pins at all. With this I2C interface LCD module, you only need 2 ![]() You are doing more than a simple project, you may be out of pins using a Would need 6 pins: RS, EN, D7, D6, D5, and D4 to talk to the LCD. To use this type LCD directly with Arduino, you On Yellow) background: it is difficult to get a good digital photo due NOTE! These displays are very clear bright white on dark blue (or Black LCD Version 3 - Marked "LCM1602 IIC A0 A1 A2" LCD Version 2 - Marked "Arduino-IIC-LCD GY-LCD-V1" LCD Version 1 - Marked "YwRobot Arduino LCM1602 IIC V1" Check the small "backpack" interface board on the back. NOTE! THERE ARE THREE (or More?) VERSIONS OF THE 2 and 4 LINE DISPLAYS. You should download that Library HERE (Click) LCD Displays (Blue and YELLOW) with I2C/TWI InterfaceĪLL the displays will now use the great Library written by F Malpartida. ![]()
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