{"product_id":"lcd1602-i2c-module-pcf8574-iic-blue-green-screen-display-1","title":"LCD1602 I2C Module PCF8574 IIC Blue Green Screen Display","description":"\u003ch2\u003eLCD1602 I2C Display Module with PCF8574 IIC Backpack Adapter\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with the \u003cstrong\u003eLCD1602 I2C Module\u003c\/strong\u003e — a versatile 16x2 character liquid crystal display paired with a \u003cstrong\u003ePCF8574 IIC backpack adapter\u003c\/strong\u003e. This compact, easy-to-wire module simplifies your builds by reducing the GPIO pin count needed from over 6 pins down to just 2 (SDA + SCL), making it ideal for Arduino, Raspberry Pi, and other microcontroller platforms.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI2C\/IIC Interface:\u003c\/strong\u003e Uses the PCF8574 I\/O expander chip for streamlined 2-wire communication, freeing up valuable pins on your microcontroller.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16x2 Character Display:\u003c\/strong\u003e Displays up to 32 characters across two rows — perfect for sensor readouts, menus, status messages, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo Backlight Color Options:\u003c\/strong\u003e Available in classic \u003cstrong\u003eBlue\u003c\/strong\u003e (white text on blue background) or crisp \u003cstrong\u003eGreen\u003c\/strong\u003e (black text on green background) to suit your project aesthetic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Contrast:\u003c\/strong\u003e On-board potentiometer lets you fine-tune display contrast for optimal readability in any lighting condition.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBreadboard \u0026amp; PCB Friendly:\u003c\/strong\u003e Compact form factor with standard pin spacing for easy prototyping and permanent installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works seamlessly with Arduino Uno, Mega, Nano, ESP8266, ESP32, Raspberry Pi, and most I2C-compatible microcontrollers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Available in multiple configurations — bare LCD1602 (blue or green) and pre-soldered I2C module versions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDisplay Type: LCD1602 (16 columns × 2 rows)\u003c\/li\u003e\n  \u003cli\u003eInterface: I2C \/ IIC (PCF8574 chip)\u003c\/li\u003e\n  \u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n  \u003cli\u003eI2C Address: 0x27 (default, adjustable via solder jumpers)\u003c\/li\u003e\n  \u003cli\u003eBacklight Colors: Blue or Green\u003c\/li\u003e\n  \u003cli\u003eCharacter Size: 5×8 dot matrix\u003c\/li\u003e\n  \u003cli\u003eViewing Angle: ~180°\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Variants\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1602 I2C Blue (pre-soldered)\u003c\/li\u003e\n  \u003cli\u003eLCD1602 Blue (bare module)\u003c\/li\u003e\n  \u003cli\u003eLCD1602 Module (standard)\u003c\/li\u003e\n  \u003cli\u003eLCD1602 Green (bare module)\u003c\/li\u003e\n  \u003cli\u003e1602 I2C Green (pre-soldered)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × LCD1602 Display Module (with or without I2C adapter, depending on variant selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi DIY projects\u003c\/li\u003e\n  \u003cli\u003eSensor data display (temperature, humidity, distance, etc.)\u003c\/li\u003e\n  \u003cli\u003eDIY clocks, timers, and counters\u003c\/li\u003e\n  \u003cli\u003eRobotics and automation builds\u003c\/li\u003e\n  \u003cli\u003eMaker spaces, classrooms, and electronics hobbyists\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More DIY Electronics \u0026amp; Maker Supplies\u003c\/h3\u003e\n\u003cp\u003eLooking to complete your project toolkit? Check out these related items from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads DIY Jewelry Making 100-200pcs\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the LCD1602 I2C module and what does it do?\u003c\/h4\u003e\n\u003cp\u003eA: The LCD1602 I2C module is a 16x2 character liquid crystal display combined with a PCF8574 IIC backpack adapter. It displays text and numeric data from a microcontroller (such as Arduino or Raspberry Pi) using just two communication wires (SDA and SCL), making wiring clean and simple for any electronics project.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the bare LCD1602 and the I2C (IIC) version?\u003c\/h4\u003e\n\u003cp\u003eA: The bare LCD1602 module connects directly to your microcontroller but requires 6+ GPIO pins. The I2C version includes a PCF8574 backpack adapter already soldered on, which converts the interface to just 2 pins (SDA + SCL via I2C protocol), significantly reducing wiring complexity and pin usage.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The LCD1602 I2C module is widely compatible with Arduino Uno, Mega, Nano, ESP8266, ESP32, Raspberry Pi, and virtually any microcontroller that supports the I2C communication protocol. Libraries such as LiquidCrystal_I2C are freely available for quick setup.\u003c\/p\u003e\n\u003ch4\u003eQ: What I2C address does the PCF8574 module use?\u003c\/h4\u003e\n\u003cp\u003eA: The default I2C address is 0x27. Most modules also include solder jumper pads on the back that allow you to change the address (e.g., to 0x20–0x27 range) if you need to run multiple LCD modules on the same I2C bus.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the LCD1602 I2C module and what does it do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LCD1602 I2C module is a 16x2 character liquid crystal display combined with a PCF8574 IIC backpack adapter. 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