{"product_id":"lcd1602-i2c-module-pcf8574-iic-blue-green-screen-display","title":"LCD1602 I2C Module PCF8574 IIC Blue\/Green Screen Display","description":"\u003ch2\u003eLCD1602 I2C Display Module with PCF8574 IIC Adapter\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with the \u003cstrong\u003eLCD1602 I2C Module\u003c\/strong\u003e — a compact, easy-to-wire character display featuring the PCF8574 IIC interface adapter. Whether you're building an Arduino project, a Raspberry Pi dashboard, or a custom embedded system, this module delivers crisp, readable 16x2 character output with minimal wiring thanks to the integrated I2C backpack.\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 Reduces wiring to just 4 pins (VCC, GND, SDA, SCL) — perfect for microcontrollers with limited GPIO pins.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePCF8574 Chip:\u003c\/strong\u003e Industry-standard I\/O expander enables seamless I2C communication with Arduino, Raspberry Pi, STM32, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16x2 Character Display:\u003c\/strong\u003e Displays up to 32 characters across 2 rows — ideal for sensor readouts, menus, status messages, and project UIs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlue or Green Backlight:\u003c\/strong\u003e Choose from 5 variants — LCD1602 Blue, LCD1602 Green, 1602 I2C Blue Weld, 1602 I2C Green Weld, or LCD1602 Module — to match your project aesthetic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard Contrast Potentiometer:\u003c\/strong\u003e Fine-tune display contrast easily with the built-in trimmer pot.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Solderable header pins allow flexible integration into breadboard or PCB builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Fits neatly into enclosures and DIY electronics housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDisplay Type: 16 x 2 Character LCD\u003c\/li\u003e\n  \u003cli\u003eInterface: I2C \/ IIC (via PCF8574)\u003c\/li\u003e\n  \u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n  \u003cli\u003eBacklight Color: Blue or Green (5 variants available)\u003c\/li\u003e\n  \u003cli\u003eCompatible With: Arduino, Raspberry Pi, STM32, ESP8266, ESP32, and more\u003c\/li\u003e\n  \u003cli\u003eDefault I2C Address: 0x27 (or 0x3F depending on variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x LCD1602 Display Module with I2C PCF8574 Adapter (variant of your choice)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi projects\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and maker builds\u003c\/li\u003e\n  \u003cli\u003eSensor data display panels\u003c\/li\u003e\n  \u003cli\u003eHome automation interfaces\u003c\/li\u003e\n  \u003cli\u003eRobotics and embedded system UIs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLooking for more components and materials for your creative builds? Explore our \u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire for DIY Making\u003c\/a\u003e or browse our \u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003eCCB Flat Round Spacer Beads for DIY Projects\u003c\/a\u003e for other hands-on crafting supplies.\u003c\/p\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\n\u003ch4\u003eQ: What microcontrollers are compatible with the LCD1602 I2C PCF8574 module?\u003c\/h4\u003e\n\u003cp\u003eA: The LCD1602 I2C module is compatible with a wide range of microcontrollers, including Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, STM32, and most platforms that support I2C communication. Simply connect VCC, GND, SDA, and SCL pins and use a standard LiquidCrystal_I2C library to get started.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the Blue and Green backlight variants?\u003c\/h4\u003e\n\u003cp\u003eA: The blue backlight version features a blue-lit background with white characters, while the green backlight version offers a classic green-lit background with dark characters. Both provide clear visibility; the choice is primarily aesthetic and based on your project's design preference. Weld variants come with pre-soldered header pins for immediate use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I set the I2C address for the LCD1602 PCF8574 module?\u003c\/h4\u003e\n\u003cp\u003eA: Most LCD1602 I2C modules using the PCF8574 chip default to address 0x27 or 0x3F. You can verify the address by running an I2C scanner sketch on your Arduino or microcontroller. Some modules have onboard solder jumpers (A0, A1, A2) that allow you to change the address if you need multiple displays on the same bus.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this module require any soldering?\u003c\/h4\u003e\n\u003cp\u003eA: The standard (non-weld) variants come with unsoldered header pins, giving you the flexibility to solder them in your preferred orientation. The \"weld\" variants come with pre-soldered headers for plug-and-play convenience on a breadboard or direct wiring.\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 microcontrollers are compatible with the LCD1602 I2C PCF8574 module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LCD1602 I2C module is compatible with a wide range of microcontrollers, including Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, STM32, and most platforms that support I2C communication. 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The \\\"weld\\\" variants come with pre-soldered headers for plug-and-play convenience on a breadboard or direct wiring.\"}}]}\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:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"LCD1602 I2C Module PCF8574 IIC Blue\/Green Screen Display\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/lcd1602-i2c-module-pcf8574-iic-blue-green-screen-display\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"1602 i2c blue weld","offer_id":54249638658358,"sku":"14:173#1602 i2c blue weld","price":7.45,"currency_code":"USD","in_stock":true},{"title":"lcd1602 blue","offer_id":54249638691126,"sku":"14:29#lcd1602 blue","price":5.63,"currency_code":"USD","in_stock":true},{"title":"lc1602 module","offer_id":54249638723894,"sku":"14:201684806#lc1602 module","price":2.78,"currency_code":"USD","in_stock":true},{"title":"lcd1602 green","offer_id":54249638756662,"sku":"14:10#lcd1602 green","price":5.63,"currency_code":"USD","in_stock":true},{"title":"1602 i2c green weld","offer_id":54249638789430,"sku":"14:201659810#1602 i2c green weld","price":7.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/Sb127fdf51d9241fa81ea6c5314794f25q_a1317e44-3b77-480a-b838-7a1fbea84d53.webp?v=1784633070","url":"https:\/\/zpaxo.com\/products\/lcd1602-i2c-module-pcf8574-iic-blue-green-screen-display","provider":"Zpaxo","version":"1.0","type":"link"}