{"product_id":"16x2-character-blue-backlight-spi-lcd-display-jhd","title":"16x2 LCD Display Blue Backlight (JHD162A)","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003e16x2 LCD Display (Blue Backlight)\u003c\/strong\u003e is an industry-standard alphanumeric display module, widely recognized by its JHD162A model designation. It is capable of displaying 16 characters across 2 separate lines, making it the perfect screen for outputting sensor data, user menus, or system statuses in custom electronics projects.\u003c\/p\u003e\n\n\u003cp\u003eAvailable at Tomson Electronics, this module features a highly visible bright blue LED backlight with crisp white text. It utilizes the ubiquitous HD44780 parallel interface chipset, meaning it is universally supported by out-of-the-box libraries for Arduino, Raspberry Pi, ESP32, and STM32 microcontrollers. Whether you are building a custom water quality monitoring system or an interactive robotics dashboard, this display provides reliable, high-contrast visual feedback.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePeople also search for:\u003c\/strong\u003e 1602 lcd, jhd162a display, arduino 16x2 lcd, blue character display, alphanumeric lcd screen, hd44780 display.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e JHD162A (Standard 1602)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Format:\u003c\/strong\u003e 16 Characters x 2 Lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackground Color:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eText Color:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController:\u003c\/strong\u003e HD44780 (or equivalent compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e 16-Pin Parallel (Can be converted to I2C with an expander)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Readouts:\u003c\/strong\u003e Displaying real-time metrics like pH, temperature, or total dissolved solids in environmental monitoring systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser Interfaces:\u003c\/strong\u003e Creating navigational menus for 3D printers, CNC machines, or custom automated test equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrototyping:\u003c\/strong\u003e The ultimate beginner-friendly display for learning how to program data outputs on Arduino microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded Systems:\u003c\/strong\u003e Providing fault codes and operational status in industrial automation panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eFrequently Asked Questions (FAQ)\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eQ: My screen lights up, but I only see solid white blocks. Is it broken?\u003c\/strong\u003e\u003cbr\u003e\nA: It is likely just a contrast issue! You need to adjust the text display contrast directly (rather than the LED backlight level). This is done by wiring a 10k potentiometer to Pin 3 (V0) on the display. Turning the potentiometer will fade the solid blocks out and bring your text into focus.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this use up a lot of pins on my microcontroller?\u003c\/strong\u003e\u003cbr\u003e\nA: In its standard parallel configuration, it requires at least 6 digital I\/O pins. However, you can solder a common IIC\/I2C expander module to the back of this display. This reduces the wiring to just 4 pins (VCC, GND, SDA, SCL). Note that most of these standard I2C backpack modules default to an active hardware interface address of \u003ccode\u003e0x27\u003c\/code\u003e in your code.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can it display custom characters or graphics?\u003c\/strong\u003e\u003cbr\u003e\nA: It cannot display full graphics or images. However, you can create and store up to 8 custom 5x8 pixel characters in its CGRAM (Character Generator RAM) to display special symbols like battery icons, degree symbols, or small stick figures.\u003c\/p\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 16x2 LCD Display Blue Backlight (JHD162A)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe 16x2 Character LCD Display with green backlight is a standard alphanumeric display module capable of showing 2 lines with 16 characters each. Based on the industry-standard HD44780 controller, it is fully compatible with Arduino, Raspberry Pi, and other microcontrollers for displaying text, sensor data, menus, and debugging information.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay Type: 16 characters × 2 lines\u003c\/li\u003e\n\u003cli\u003eBacklight Color: Blue with black characters\u003c\/li\u003e\n\u003cli\u003eController: HD44780 or compatible\u003c\/li\u003e\n\u003cli\u003eInterface: 4-bit or 8-bit parallel (TTL logic)\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eCharacter Format: 5x8 dot matrix\u003c\/li\u003e\n\u003cli\u003eDimensions: ~80mm × 36mm\u003c\/li\u003e\n\u003cli\u003ePin Header: 16-pin standard connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eArduino display projects\u003c\/li\u003e\n\u003cli\u003eDIY electronics dashboards\u003c\/li\u003e\n\u003cli\u003eSensor output and menu interfaces\u003c\/li\u003e\n\u003cli\u003ePrototyping and educational kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eUsage Notes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eUse a 10K potentiometer to adjust contrast (VO pin).\u003c\/li\u003e\n\u003cli\u003eCompatible with LiquidCrystal library in Arduino IDE.\u003c\/li\u003e\n\u003cli\u003eCan be paired with I2C backpack module to reduce pin usage.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JHD","offers":[{"title":"Default Title","offer_id":48318480253166,"sku":"DIS-00941","price":99.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/16X2LCDBLUEJHDDISPLAY.jpg?v=1784105267","url":"https:\/\/www.tomsonelectronics.com\/products\/16x2-character-blue-backlight-spi-lcd-display-jhd","provider":"Tomson Electronics ","version":"1.0","type":"link"}