{"product_id":"20x4-lcd-green-jhd-display-original","title":"20X4 LCD GREEN JHD DISPLAY","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eOriginal JHD 2004A LCD\u003c\/strong\u003e is a high-quality alphanumeric display module capable of showing 80 characters across 4 lines (20 columns per line). Featuring a classic \u003cstrong\u003eYellow-Green LED backlight\u003c\/strong\u003e and high-contrast black text, this genuine JHD module is the industrial standard for clear data visualization. Built with the reliable \u003cstrong\u003eHD44780-compatible controller\u003c\/strong\u003e, it integrates seamlessly with \u003cstrong\u003eArduino, Raspberry Pi, ESP32, and PIC microcontrollers\u003c\/strong\u003e. Unlike low-cost clones, the authentic JHD display ensures stable timing, uniform backlighting, and a wide operating temperature range, making it ideal for \u003cstrong\u003eindustrial control panels, medical equipment, and professional DIY workstations\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePeople also search for:\u003c\/strong\u003e jhd 2004a lcd, original 20x4 green lcd, 2004 character display, jhd 20x4 arduino, 20x4 lcd pinout, industrial lcd module, hd44780 20x4 display, green backlight lcd 20*4.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e JHD (Genuine \/ Original)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e JHD 2004A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Format:\u003c\/strong\u003e 20 Characters x 4 Lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklight:\u003c\/strong\u003e Yellow-Green LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eText Color:\u003c\/strong\u003e Dark Blue \/ Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e 16-Pin Parallel (6800 4-bit\/8-bit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController:\u003c\/strong\u003e HD44780 Equivalent (Industry Standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViewing Area:\u003c\/strong\u003e 76.0mm x 26.0mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Dimensions:\u003c\/strong\u003e 98.0mm x 60.0mm x 14.0mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eApplications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Monitoring:\u003c\/strong\u003e Displaying multi-parameter sensor data in real-time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser Interfaces:\u003c\/strong\u003e Creating complex menus for CNC machines or 3D printers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Equipment:\u003c\/strong\u003e Building custom frequency counters, voltmeters, and oscilloscopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Automation:\u003c\/strong\u003e Centralized control hub for smart home status updates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducation:\u003c\/strong\u003e Learning character addressing and cursor control in embedded systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eUsage Notes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContrast Adjustment:\u003c\/strong\u003e Use a 10K Ohm potentiometer connected to Pin 3 (V0) to tune the character visibility for your specific viewing angle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklight Protection:\u003c\/strong\u003e Pins 15 (A) and 16 (K) power the LED. Ensure a current-limiting resistor is used if your 5V rail is unregulated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI2C Compatibility:\u003c\/strong\u003e This is a parallel interface module; to save pins on your microcontroller, we highly recommend using it with a \u003cstrong\u003ePCF8574 I2C Adapter\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003ePackage Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Original JHD 20x4 Green LCD Display Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOMSON ELECTRONICS","offers":[{"title":"Default Title","offer_id":47815583039726,"sku":"DIS-26083","price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2132\/9029\/files\/DISPLAY20X4GREEN.avif?v=1774424364","url":"https:\/\/www.tomsonelectronics.com\/products\/20x4-lcd-green-jhd-display-original","provider":"Tomson Electronics ","version":"1.0","type":"link"}