{"product_id":"bananapi-gpio-extend-board-1","title":"BananaPi GPIO Extend Board","description":"\u003ch2\u003e\u003cspan data-spm-anchor-id=\"a2g0o.detail.1000023.i0.4102f994Np7VcI\"\u003eBanana Pi GPIO Extend Board (BPI-A-004)\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module is designed specifically for the Banana Pi IO expansion modules, which can effectively solve the banana send IO port insufficient. Module uses four 74HC595 chips to expand 32 IO ports. As shown above, the top of the module will expand the IO of Banana Pi again that can be cascaded for more IO expansion modules can theoretically unlimited expansion.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Features \u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eExpanded 32 GPIO\u003c\/li\u003e\n\u003cli\u003eInfinity connection for the same module\u003c\/li\u003e\n\u003cli\u003eUse wiringPi API ,sample code\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cstrong\u003ePort\u003c\/strong\u003e\n\u003col\u003e\n\u003cli\u003eBanana Pi 2X13 port\u003c\/li\u003e\n\u003cli\u003eBanana Pi 2X13 cascade port\u003c\/li\u003e\n\u003cli\u003eQ0-Q31 expanded IO port\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cstrong\u003eProduct Parameters \u003c\/strong\u003e\n\u003col\u003e\n\u003cli\u003eWorking voltage: 2.4V-5V\u003c\/li\u003e\n\u003cli\u003eIO voltage: 3.3V\u003c\/li\u003e\n\u003cli\u003eExpanded 32 unidirectional IO\u003c\/li\u003e\n\u003cli\u003eConnection through SPI\u003c\/li\u003e\n\u003cli\u003e100 MHz (typical) shift out frequency\u003c\/li\u003e\n\u003cli\u003e8-bit serial input\u003c\/li\u003e\n\u003cli\u003e8-bit serial or parallel output\u003c\/li\u003e\n\u003cli\u003eSpecified from -40C to +85C and from -40C to +125C\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cstrong\u003eTypical Application \u003c\/strong\u003e\n\u003col\u003e\n\u003cli\u003eDrive the lattice screen\u003c\/li\u003e\n\u003cli\u003eDriver numeric display\u003c\/li\u003e\n\u003cli\u003eDrive matrix LED\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMethod Of Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eInsert the module that the silk screen says “BPI IN”. Pay attention don’t make the direction reversed! The correct direction of insert module is above the Banana Pi’s PCB; The 8*4header in the module are Q0-Q31 expanded GPIO, they can connect to the peripheral through the Dupont Line. The header which near silk screen write ”EXT” expand GPIO of Banana Pi, user can cascade the other module or the same module.\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 74HC595; 74HCT595 are high-speed Si-gate CMOS devices and are pin compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe 74HC595; 74HCT595 are 8-stage serial shift registers with a storage register and 3-state outputs. The registers have separate clocks.Data is shifted on the positive-going transitions of the shift register clock input (SHCP). The data in each register is transferred to the storage register on a positive-going transition of the storage register clock input (STCP). If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe shift register has a serial input (DS) and a serial standard output (Q7S) for cascading. It is also provided with asynchronous reset (active LOW) for all 8 shift register stages. The storage register has 8 parallel 3-state bus driver outputs. Data in the storage register appears at the output whenever the output enable input (OE) is LOW.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor more information about BananaPi GPIO Extend Board, plesae concact us.\u003c\/p\u003e","brand":"Banana Pi","offers":[{"title":"Default Title","offer_id":51505718067481,"sku":"BPI-A-004","price":3.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0957\/5088\/1561\/files\/1_be332c88-2bc9-49fd-9ee1-02c46b46f009.png?v=1759932354","url":"https:\/\/geniuscores.com\/products\/bananapi-gpio-extend-board-1","provider":"Genius Core Embedded Systems","version":"1.0","type":"link"}