{"product_id":"lcd1602-16x2-character-lcd-display-module-i2c-iic-interface-5v","title":"LCD1602 16x2 Character LCD Module I2C IIC Interface 5V","description":"\n\u003ch2\u003eLCD1602 16x2 Character LCD Display Module with I2C IIC Interface\u003c\/h2\u003e\n\u003cp\u003eThe LCD1602 is a versatile 16x2 character LCD display module featuring an I2C\/IIC interface (PCF8574T \/ PCF8574 backpack), making it one of the easiest and most popular display modules for microcontroller projects. Whether you're building with Arduino, Raspberry Pi, or any other 5V microcontroller platform, this module delivers crisp, readable text output with minimal wiring.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 columns × 2 rows\u003c\/strong\u003e — displays up to 32 characters simultaneously\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI2C \/ IIC interface\u003c\/strong\u003e via onboard PCF8574T \/ PCF8574 expander — reduces wiring to just 4 pins (VCC, GND, SDA, SCL)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5V operating voltage\u003c\/strong\u003e — compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and more\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacklight options:\u003c\/strong\u003e Blue with white characters, or Yellow-Green with black characters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable contrast\u003c\/strong\u003e via onboard potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact and breadboard-friendly\u003c\/strong\u003e design for easy prototyping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-play\u003c\/strong\u003e with widely available open-source libraries (e.g., LiquidCrystal_I2C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LCD1602 (1602)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e IIC \/ I2C (PCF8574T \/ PCF8574)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 5V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay Format:\u003c\/strong\u003e 16 Characters × 2 Lines\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacklight Colors:\u003c\/strong\u003e Blue \/ Yellow-Green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug Type:\u003c\/strong\u003e None (solderable pin header)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 piece\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e None\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 16x2 Character LCD Module with I2C IIC Interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino and Raspberry Pi hobbyist projects\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and maker builds\u003c\/li\u003e\n  \u003cli\u003eSensor data readouts, menu systems, and status displays\u003c\/li\u003e\n  \u003cli\u003eEducational electronics kits and STEM projects\u003c\/li\u003e\n  \u003cli\u003ePrototyping and embedded systems development\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor helpful guidance on working safely with electronics components, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer electronics safety information.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What interface does the LCD1602 module use, and how many wires does it need?\u003c\/h4\u003e\n\u003cp\u003eA: The LCD1602 module uses an I2C (IIC) interface via the onboard PCF8574T or PCF8574 chip. This means you only need 4 wires to connect it to your microcontroller: VCC (5V), GND, SDA (data), and SCL (clock) — making wiring far simpler than a standard parallel-connected LCD.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the LCD1602 I2C module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The LCD1602 with I2C interface is fully compatible with Arduino boards, Raspberry Pi, ESP8266, ESP32, and most other 5V or 3.3V (with level shifter) microcontroller platforms. It works seamlessly with the popular open-source \u003cem\u003eLiquidCrystal_I2C\u003c\/em\u003e library for Arduino.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the blue and yellow-green backlight versions?\u003c\/h4\u003e\n\u003cp\u003eA: The blue backlight version displays white characters on a blue background, offering high contrast in low-light environments. The yellow-green backlight version displays black characters on a yellow-green background, which can be easier to read in bright ambient light. Both versions are functionally identical — only the backlight color differs.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I adjust the contrast on the LCD1602 module?\u003c\/h4\u003e\n\u003cp\u003eA: The module features a small blue potentiometer on the PCF8574 backpack board. Turning this potentiometer clockwise or counter-clockwise adjusts the display contrast so your text appears sharp and clear. If nothing appears on screen after powering up, try adjusting the contrast pot first.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What interface does the LCD1602 module use, and how many wires does it need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LCD1602 module uses an I2C (IIC) interface via the onboard PCF8574T or PCF8574 chip. This means you only need 4 wires to connect it to your microcontroller: VCC (5V), GND, SDA (data), and SCL (clock) — making wiring far simpler than a standard parallel-connected LCD.\"}}, {\"@type\": \"Question\", \"name\": \"Is the LCD1602 I2C module compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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