{"title":"I2C 20x4(2004) LCD Display for Arduino","handle":"i2c-20x4-2004-lcd-display-for-arduino","url":"/products/i2c-20x4-2004-lcd-display-for-arduino","description":"A 20×4 character I2C LCD display module compatible with Arduino and other microcontrollers. It shows white characters on a blue backlit background, and the I2C interface means you only need two data pins (SDA and SCL) instead of the six or more required by a standard parallel LCD.\n\nThe module supports both 5 V and 3.3 V power, making it compatible with Arduino UNO, Arduino Mega, Arduino Due, and other 3.3 V systems. Contrast is adjustable manually, and eight selectable I2C addresses (0x20–0x27) let you avoid bus conflicts when using multiple I2C devices.\n\nKey Features\n\n\n20×4 Character Display – 80 characters across four lines\n\nI2C Interface – Only two data pins required (SDA, SCL)\n\nDual Voltage Support – 5 V via pin header or 3.3 V via IDC10 connector\n\nSelectable I2C Address – Eight addresses from 0x20 to 0x27 (0x20 default)\n\nAdjustable Contrast – Manual contrast adjustment\n\nBlue Backlight – White characters on blue background\n\n\nSpecifications\n\n\nDisplay – 20 characters × 4 lines\n\nDot Size – 0.55 × 0.55 mm\n\nCharacter Size – 2.96 × 4.75 mm\n\nCharacter Pitch – 3.55 × 5.35 mm\n\nInterface – I2C/TWI ×1, IDC10 ×2\n\nI2C Connector – VCC, GND, SCL, SDA\n\nDimensions – 98 × 60 × 24 mm\n\n\nPackage Contents\n\n1× I2C 20×4 Arduino LCD display module\n\n\nResources\n\nWiki page\nSchematic (PDF)\nArduino sample code\nLCD datasheet (PDF)\nPCA8574 datasheet (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9709,"title":"Default Title","sku":"DF-DFR0154","price":26.0,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":51,"option1":"Default Title"}]}