{"product_id":"lcd1602-16x2-i2c-lcd-display-module-pcf8574-5v","title":"LCD1602 16x2 I2C LCD Display Module PCF8574 5V – Blue Screen","description":"\n\u003ch2\u003eLCD1602 16x2 Character LCD Display Module with I2C\/IIC Interface\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with this versatile \u003cstrong\u003eLCD1602 16x2 Character Display Module\u003c\/strong\u003e. Featuring a crisp blue backlight and a built-in PCF8574T\/PCF8574 I2C adapter, this module dramatically reduces the number of GPIO pins required — making it ideal for Arduino, Raspberry Pi, and other microcontroller-based projects. Simple wiring, easy library support, and a compact form factor make it a go-to display solution for hobbyists and professionals alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16x2 Character Display:\u003c\/strong\u003e Shows up to 2 lines of 16 characters each for clear, readable output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI2C \/ IIC Interface:\u003c\/strong\u003e Onboard PCF8574T\/PCF8574 I\/O expander reduces wiring to just 4 pins (VCC, GND, SDA, SCL).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlue Backlight:\u003c\/strong\u003e Wide viewing angle and high-contrast display for excellent readability in various lighting conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHD44780-Compatible Controller:\u003c\/strong\u003e Industry-standard controller ensures broad compatibility with existing libraries and code.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5V DC Operation:\u003c\/strong\u003e Standard logic voltage compatible with most popular development boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Contrast:\u003c\/strong\u003e On-board potentiometer lets you fine-tune display contrast with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Module dimensions: 80mm × 35mm × 11mm; Viewing area: 64.5mm × 16mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCharacter LCD (LCM)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 × 2 Characters\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI2C \/ IIC (PCF8574T \/ PCF8574)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBacklight Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLCD Controller\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHD44780-equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80mm × 35mm × 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eViewing Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64.5mm × 16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino and Raspberry Pi projects\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and prototyping\u003c\/li\u003e\n  \u003cli\u003eIndustrial test and measurement equipment\u003c\/li\u003e\n  \u003cli\u003eNetworking devices (routers, storage equipment)\u003c\/li\u003e\n  \u003cli\u003eCopiers, fax machines, and laser printers\u003c\/li\u003e\n  \u003cli\u003eHome automation displays\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 Display Module with I2C Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this LCD1602 module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The LCD1602 module with I2C interface is fully compatible with Arduino boards. You can use popular libraries such as the LiquidCrystal_I2C library to get started quickly with minimal wiring — only 4 connections needed (VCC, GND, SDA, SCL).\u003c\/p\u003e\n\u003ch4\u003eQ: What is the I2C address of the PCF8574T adapter on this module?\u003c\/h4\u003e\n\u003cp\u003eA: The default I2C address for the PCF8574T is typically 0x27. However, you can use an I2C scanner sketch to confirm the address on your specific module, as some variants using the PCF8574 (non-T) may use 0x3F.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this module run on 3.3V systems like a Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: This module is designed for 5V DC operation. While many Raspberry Pi projects use a 3.3V logic level, a logic level converter or a 5V power supply with appropriate I2C level shifting is recommended to ensure reliable and safe operation.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I adjust the display contrast on the LCD1602 module?\u003c\/h4\u003e\n\u003cp\u003eA: The module includes an onboard potentiometer (small blue screw adjustment). Simply turn it with a small screwdriver while the module is powered on to achieve your desired contrast level until the characters are clearly visible.\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\": \"Is this LCD1602 module compatible with Arduino?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The LCD1602 module with I2C interface is fully compatible with Arduino boards. You can use popular libraries such as the LiquidCrystal_I2C library to get started quickly with minimal wiring — only 4 connections needed (VCC, GND, SDA, SCL).\"}}, {\"@type\": \"Question\", \"name\": \"What is the I2C address of the PCF8574T adapter on this module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The default I2C address for the PCF8574T is typically 0x27. However, you can use an I2C scanner sketch to confirm the address on your specific module, as some variants using the PCF8574 (non-T) may use 0x3F.\"}}, {\"@type\": \"Question\", \"name\": \"Can this module run on 3.3V systems like a Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module is designed for 5V DC operation. While many Raspberry Pi projects use a 3.3V logic level, a logic level converter or a 5V power supply with appropriate I2C level shifting is recommended to ensure reliable and safe operation.\"}}, {\"@type\": \"Question\", \"name\": \"How do I adjust the display contrast on the LCD1602 module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The module includes an onboard potentiometer (small blue screw adjustment). Simply turn it with a small screwdriver while the module is powered on to achieve your desired contrast level until the characters are clearly visible.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"LCD1602 16x2 I2C LCD Display Module PCF8574 5V – Blue Screen\", \"item\": \"https:\/\/0dwbi8-fa.myshopify.com\/products\/lcd1602-16x2-i2c-lcd-display-module-pcf8574-5v\"}]}\u003c\/script\u003e","brand":"Quake","offers":[{"title":"LCD1602 Green","offer_id":50287277408483,"sku":"14:175#LCD1602 Green","price":11.31,"currency_code":"USD","in_stock":true},{"title":"LCD1602 White","offer_id":50287277441251,"sku":"14:29#LCD1602 White","price":12.5,"currency_code":"USD","in_stock":true},{"title":"LCD1602 Blue","offer_id":50287277474019,"sku":"14:173#LCD1602 Blue","price":11.38,"currency_code":"USD","in_stock":true},{"title":"IIC Interface","offer_id":50287277506787,"sku":"14:201684806#IIC Interface","price":8.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/9439\/1523\/files\/Sfea893b08fe4487bbfdd51e7b0f2908b0.webp?v=1790295393","url":"https:\/\/quakegoods.com\/products\/lcd1602-16x2-i2c-lcd-display-module-pcf8574-5v","provider":"Quake","version":"1.0","type":"link"}