{"product_id":"parallax-4-x-20-serial-lcd-with-piezospeaker-backlit","title":"Parallax 4 x 20 Serial LCD with Piezospeaker (Backlit)","description":"\u003ch5 class=\"ui-accordion-header ui-helper-reset ui-state-default ui-state-active ui-corner-top\" role=\"tab\"\u003eParallax 4 x 20 Serial LCD with Piezospeaker (Backlit) Overview:\u003c\/h5\u003e\n\u003cdiv id=\"overview\" class=\"tabbed overview ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content-active\" role=\"tabpanel\"\u003e\n\u003cdiv class=\"field-body\"\u003e\n\u003cp\u003eThe Parallax Serial LCDs (liquid crystal displays) can be easily connected to and controlled by a microcontroller using a simple serial protocol sent from a single I\/O pin. The LCD displays provide basic text wrapping so that your text looks correct on the display. Full control over all of their advanced LCD features allows you to move the cursor anywhere on the display with a single instruction and turn the display on and off in any configuration. They support visible ASCII characters Dec 32-127). In addition, you may define up to eight of your own custom characters to display anywhere on the LCD. An onboard piezospeaker provides audible output, with full control over tone note, scale and duration using ASCII characters Dec 208–232.\u003c\/p\u003e\n\u003cp\u003eThis model features 4 rows of 20 black characters a green backlit field. It is also available in  \u003ca href=\"\/products\/parallax-2-x-16-serial-lcd-with-piezo-speaker-backlit\/\" rel=\"noopener\" target=\"_blank\"\u003egreen backlit (#27977)\u003c\/a\u003e .\u003c\/p\u003e\n\u003ch5\u003e\u003cspan class=\"forte\"\u003eKey Features:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eClear 40-pixel characters support ASCII DEC 32-127\u003c\/li\u003e\n\u003cli\u003eTurn backlighting on or off with a single command\u003c\/li\u003e\n\u003cli\u003eEight user-definable custom characters\u003c\/li\u003e\n\u003cli\u003eMove the cursor anywhere or clear the display with a single command\u003c\/li\u003e\n\u003cli\u003eBuilt-in piezospeaker lets you add audible alert tones\u003c\/li\u003e\n\u003cli\u003eBaud mode selector and adjustable contrast on the back of the display\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan class=\"forte\"\u003eApplication Ideas:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional-looking text user interface on any microcontroller application\u003c\/li\u003e\n\u003cli\u003eEasy serial debugging without a PC\u003c\/li\u003e\n\u003cli\u003eReal-time sensor data output on autonomous robot\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 class=\"ui-accordion-header ui-helper-reset ui-state-active ui-corner-top\" role=\"tab\"\u003eParallax 4 x 20 Serial LCD with Piezospeaker (Backlit) Details:\u003c\/h5\u003e\n\u003cdiv id=\"details\" class=\"tabbed details ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content-active\" role=\"tabpanel\"\u003e\n\u003cdiv class=\"field-tech\"\u003e\n\u003cul\u003e\n\u003cli\u003e4 rows x 20 characters\u003c\/li\u003e\n\u003cli\u003eBuilt-in piezospeaker\u003c\/li\u003e\n\u003cli\u003eTest mode verifies display functionality\u003c\/li\u003e\n\u003cli\u003eAdjustable contrast knob\u003c\/li\u003e\n\u003cli\u003eBaud rate switches on back of device\u003c\/li\u003e\n\u003cli\u003ePower requirements: +5 VDC, 20 mA (light off), ~80 mA typical (light on)\u003c\/li\u003e\n\u003cli\u003eSelectable asynchronous serial baud rates: 2400, 9600, 19200\u003c\/li\u003e\n\u003cli\u003eConnection: 3-pin male header with 0.1\" spacing for ground, power, and input signal\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.37 x 3.86 in (60.2 x 98.1 mm)\u003c\/li\u003e\n\u003cli\u003eOperating temp range: -4 to +158 °F (-20 to +70 °C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cspan class=\"rotforte\"\u003eNote:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe LCDs currently for sale are updated to Revision F. Basic functionality remains the same, but power requirements and the layout of the backpack have changed. Please see the documentation for information on your model.\u003c\/li\u003e\n\u003cli\u003eThis device can be connected to a PC serial port using a MAX232 line driver. The circuit isn't supported by Parallax, but it's possible to make this connection with a few extra parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eResource Links\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.parallax.com\/tutorials-menu\/propeller-c\/\" rel=\"noopener\" target=\"_blank\"\u003eHalf-Duplex Serial Tutorial – Propeller C\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.parallax.com\/support\/reference\/propeller-blocklyprop-block-reference\/communicate\/serial-lcd\" rel=\"noopener\" target=\"_blank\"\u003eBlocklyProp Serial LCD Block Reference\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":53397220655413,"sku":"27979","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/6307\/2821\/files\/a8da7c7a-27979.png?v=1787781821","url":"https:\/\/shop.parallax.com\/products\/parallax-4-x-20-serial-lcd-with-piezospeaker-backlit","provider":"Parallax Inc","version":"1.0","type":"link"}