{"id":73448,"date":"2024-05-20T14:00:15","date_gmt":"2024-05-20T12:00:15","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/?p=73448"},"modified":"2026-04-08T10:57:19","modified_gmt":"2026-04-08T08:57:19","slug":"pcf8574-co-to-jest-dane-techniczne-schemat-cena-i-opinie","status":"publish","type":"post","link":"https:\/\/botland.com.pl\/blog\/pcf8574-co-to-jest-dane-techniczne-schemat-cena-i-opinie\/","title":{"rendered":"PCF8574 \u2013 co to jest? Dane techniczne, schemat, cena i opinie"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Czas czytania:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"73448\" class=\"elementor elementor-73448\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6fae35bd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6fae35bd\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-38af3ca1\" data-id=\"38af3ca1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8082b09 elementor-widget elementor-widget-text-editor\" data-id=\"8082b09\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>PCF8574 to popularny ekspander wyprowadze\u0144 I\/O, kt\u00f3ry pozwala na pod\u0142\u0105czenie 8 dodatkowych urz\u0105dze\u0144. Co warto o nim wiedzie\u0107?<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-449df7c elementor-widget elementor-widget-heading\" data-id=\"449df7c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Co to jest ekspander port\u00f3w I\/O?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e8a94ba elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e8a94ba\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5c6ef99\" data-id=\"5c6ef99\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-065f1e4 elementor-widget elementor-widget-text-editor\" data-id=\"065f1e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Czasami liczba wyprowadze\u0144 dost\u0119pna w wybranej <a href=\"https:\/\/botland.com.pl\/54-plytki-uniwersalne\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>p\u0142ytce PCB<\/strong> <\/a>nie jest wystarczaj\u0105ca, by pod\u0142\u0105czy\u0107 wszystkie komponenty lub urz\u0105dzenia potrzebne w danym projekcie.<\/p><p>To problem, kt\u00f3ry mo\u017cna rozwi\u0105za\u0107 na kilka sposob\u00f3w \u2013 jednym z najskuteczniejszych jest zastosowanie tzw. <a href=\"https:\/\/botland.com.pl\/705-ekspandery-wyprowadzen\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>ekspandera I\/O<\/strong><\/a>, nazywanego tak\u017ce <strong>rozszerzeniem port\u00f3w<\/strong>. Produkty tego rodzaju to niewielkie, do\u015b\u0107 proste uk\u0142ady przygotowane w\u0142a\u015bnie z my\u015bl\u0105 o zwi\u0119kszeniu mo\u017cliwo\u015bci mikrokomputer\u00f3w i innych uk\u0142ad\u00f3w elektronicznych. W wi\u0119kszo\u015bci przypadk\u00f3w s\u0105 one przeznaczone do monta\u017cu technik\u0105 THT, czyli poprzez przewlekanie pin\u00f3w przez otwory w p\u0142ytce.\u00a0<\/p><p>To uniwersalna metoda, kt\u00f3ra pozwala na zastosowanie ekspander\u00f3w z r\u00f3\u017cnymi platformami \u2013 s\u0105 one kompatybilne m.in. z <a href=\"https:\/\/botland.com.pl\/234-arduino\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Arduino<\/strong><\/a> czy z <a href=\"https:\/\/botland.com.pl\/399-raspberry-pi\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Raspberry Pi<\/strong><\/a>. Jednym z przyk\u0142ad\u00f3w <a href=\"https:\/\/botland.com.pl\/705-ekspandery-wyprowadzen\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>ekspandera port\u00f3w I\/O jest uk\u0142ad PCF8574.<\/strong><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2ec037d\" data-id=\"2ec037d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-81fff8d elementor-widget elementor-widget-image\" data-id=\"81fff8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"01210_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODA0MjIsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmNvbS5wbFwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDVcLzAxMjEwXzFfa3dhZHJhdC5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-80422\" alt=\"PCF8574N - Mikrocontroller Pin-Erweiterung\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat-300x300.jpg 300w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat-768x768.jpg 768w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/01210_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">PCF8574N - ekspander wyprowadze\u0144 mikrokontrolera.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1319abb elementor-align-center elementor-widget elementor-widget-button\" data-id=\"1319abb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.com.pl\/ekspandery-wyprowadzen\/1210-pcf8574n-ekspander-wyprowadzen-mikrokontrolera-5904422303082.html\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">SPRAWD\u0179<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-9908997 elementor-widget elementor-widget-spacer\" data-id=\"9908997\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-213f825 elementor-widget elementor-widget-heading\" data-id=\"213f825\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PCF8574 \u2013 zastosowanie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6be1a24 elementor-widget elementor-widget-text-editor\" data-id=\"6be1a24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Zastosowanie uk\u0142adu <a href=\"https:\/\/botland.com.pl\/705-ekspandery-wyprowadzen\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>PCF8574<\/strong><\/a> jest bardzo proste: jego jedynym zadaniem jest zwi\u0119kszenie liczby dost\u0119pnych port\u00f3w I\/O. Tylko tyle i a\u017c tyle \u2013 dzi\u0119ki temu mo\u017cliwo\u015bci przygotowywanych projekt\u00f3w mog\u0105 sta\u0107 si\u0119 o wiele wi\u0119ksze. Warto jednak zwr\u00f3ci\u0107 przy tym uwag\u0119 na rodzaj komponent\u00f3w, z kt\u00f3rymi mo\u017ce wsp\u00f3\u0142pracowa\u0107 PCF8574. Produkt ten jest przeznaczony do wykorzystania z I2C \u2013 dwuliniow\u0105 magistral\u0105 dwukierunkow\u0105. To popularne rozwi\u0105zanie do szeregowego przesy\u0142ania danych w elektronice, stosowane nieprzerwanie od lat 80. a\u017c do dzi\u015b. PCF8574 pozwala na pod\u0142\u0105czenie urz\u0105dze\u0144 i komponent\u00f3w r\u00f3\u017cnego rodzaju, dzi\u0119ki czemu znajduje zastosowanie w uk\u0142adach takich jak:<\/p><ul style=\"font-size: 16px; background-color: #ffffff;\"><li style=\"font-size: 16px;\">routery i serwery,<\/li><li style=\"font-size: 16px;\">urz\u0105dzenia filtruj\u0105ce w urz\u0105dzeniach telekomunikacyjnych,<\/li><li style=\"font-size: 16px;\">uk\u0142ady automatyki przemys\u0142owej,<\/li><li style=\"font-size: 16px;\">projekty z obszaru elektroniki i robotyki \u2013 zw\u0142aszcza bazuj\u0105ce na uk\u0142adach z niewielk\u0105 liczb\u0105 wyprowadze\u0144 GPIO.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a259f04 elementor-widget elementor-widget-heading\" data-id=\"a259f04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Dane techniczne modu\u0142u PCF8574<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-5e0b27c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e0b27c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2c218ed\" data-id=\"2c218ed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4332aa2 elementor-widget elementor-widget-image\" data-id=\"4332aa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"04455_7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODA0MjYsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmNvbS5wbFwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDVcLzA0NDU1XzcuanBnIn0%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"432\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7-1024x553.jpg\" class=\"attachment-large size-large wp-image-80426\" alt=\"PCF8574 Modul - Expander f\u00fcr Mikrocontroller-Pins\" srcset=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7-1024x553.jpg 1024w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7-300x162.jpg 300w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7-768x415.jpg 768w, https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2024\/05\/04455_7.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Modu\u0142 PCF8574 - ekspander wyprowadze\u0144 mikrokontrolera.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7604fa6 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"7604fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.com.pl\/ekspandery-wyprowadzen\/4455-modul-pcf8574-ekspander-wyprowadzen-mikrokontrolera-waveshare-3708-5904422300456.html\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">SPRAWD\u0179<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-fef8089\" data-id=\"fef8089\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-efaa0f8 elementor-widget elementor-widget-text-editor\" data-id=\"efaa0f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Przy wyborze konkretnego ekspandera port\u00f3w I\/O dla danego projektu nale\u017cy zwr\u00f3ci\u0107 uwag\u0119 na szereg istotnych kwestii dotycz\u0105cych specyfikacji technicznej produktu. Najwa\u017cniejsz\u0105 kwesti\u0105 jest przewa\u017cnie <strong>liczba wyprowadze\u0144<\/strong> \u2013 w tym przypadku uk\u0142ad zawiera 16 wyprowadze\u0144, co pozwala na pod\u0142\u0105czenie 8 dodatkowych komponent\u00f3w lub urz\u0105dze\u0144.<\/p><p>Nie bez znaczenia jest te\u017c <strong>napi\u0119cie zasilania<\/strong>. Dla modu\u0142u PCF8574 jego warto\u015b\u0107 powinna znajdowa\u0107 si\u0119 w zakresie <strong>od 2,5 V do 6 V<\/strong>. Uk\u0142ad znajduje si\u0119 w obudowie DIP-16, a maksymalna cz\u0119stotliwo\u015b\u0107 transmisji przez I2C z u\u017cyciem PCF8574 wynosi 100 kHz. Temperatura pracy wynosi <strong>od \u221240\u00b0C do +85\u00b0C.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-4646098 elementor-widget elementor-widget-heading\" data-id=\"4646098\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Schemat PCF8574<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b706ba elementor-widget elementor-widget-text-editor\" data-id=\"5b706ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Wewn\u0119trzna konstrukcja PCF8574 obejmuje m.in. <strong>filtr wej\u015bcia<\/strong>, kt\u00f3ry przekazuje sygna\u0142y do kontrolera magistrali I2C, a nast\u0119pnie do port\u00f3w I\/O. Kontroler i porty komunikuj\u0105 si\u0119 z 8-bitowym rejestrem przesuwaj\u0105cym; sygna\u0142y s\u0105 dodatkowo przeprowadzane przez <strong>filtr dolnoprzepustowy<\/strong>. Co wa\u017cne, uk\u0142ad nie zawiera wbudowanych pull-up\u00f3w (rezystor\u00f3w podci\u0105gaj\u0105cych), przez co potrzebne b\u0119dzie zastosowanie dodatkowych rezystor\u00f3w o odpowiednich warto\u015bciach. PCF8574 oferuje nast\u0119puj\u0105ce wej\u015bcia i wyj\u015bcia:<\/p><ul style=\"font-size: 16px; background-color: #ffffff;\"><li style=\"font-size: 16px;\">piny P0\u2013P7 \u2013 porty I\/O;<\/li><li style=\"font-size: 16px;\">wyprowadzenia A2, A1 i A0, kt\u00f3re funkcjonuj\u0105 jako wej\u015bcie uk\u0142adu;<\/li><li style=\"font-size: 16px;\">GND \u2013 masa;<\/li><li style=\"font-size: 16px;\">INT do obs\u0142ugi przerwa\u0144 sprz\u0119towych;<\/li><li style=\"font-size: 16px;\">SCL (Serial Clock Line) \u2013 linia zegara wykorzystywana w transmisji I2C;<\/li><li style=\"font-size: 16px;\">SDA (Serial Data Line) \u2013 linia danych wykorzystywana w transmisji I2C;<\/li><li style=\"font-size: 16px;\">VCC \u2013 napi\u0119cie wej\u015bciowe.<\/li><\/ul><p>Aby uk\u0142ad m\u00f3g\u0142 dzia\u0142a\u0107 w poprawny spos\u00f3b, niezb\u0119dne b\u0119dzie pod\u0142\u0105czenie wyprowadze\u0144 <strong>A2, A1 i A0<\/strong>. W zale\u017cno\u015bci od wariantu adresy magistrali i oznaczenia wyprowadze\u0144 mog\u0105 si\u0119 r\u00f3\u017cni\u0107 \u2013 informacje na ten temat mo\u017cna znale\u017a\u0107 w instrukcji konkretnego produktu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10b0c31 elementor-widget elementor-widget-heading\" data-id=\"10b0c31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Ile kosztuje rozszerzenie port\u00f3w I\/O PCF8574?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b857d92 elementor-widget elementor-widget-text-editor\" data-id=\"b857d92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ekspander port\u00f3w I\/O PCF8574 to wydatek w okolicach <strong>10\u201315 z\u0142otych<\/strong>. Jest to niedrogi i niewielki komponent, kt\u00f3ry mo\u017ce znacznie zwi\u0119kszy\u0107 mo\u017cliwo\u015bci r\u00f3\u017cnych projekt\u00f3w, pozwalaj\u0105c na zrealizowanie zupe\u0142nie nowych funkcji. To z pewno\u015bci\u0105 op\u0142acalna inwestycja \u2013 uk\u0142ad tego typu mo\u017ce okaza\u0107 si\u0119 przydatny w wielu urz\u0105dzeniach. Dok\u0142adny koszt zale\u017cy m.in. od wariantu ekspandera, a tak\u017ce od producenta, jednak w zdecydowanej wi\u0119kszo\u015bci przypadk\u00f3w nie przekracza on 20 z\u0142otych. PCF8574 mo\u017ce by\u0107 wykorzystany do obs\u0142ugi zar\u00f3wno sygna\u0142\u00f3w wej\u015bciowych, jak i wyj\u015bciowych. Modu\u0142 ten jest kompatybilny z licznymi p\u0142ytkami PCB dost\u0119pnymi na rynku \u2013 w tym z produktami od Arduino czy Raspberry Pi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2af0b78 elementor-widget elementor-widget-heading\" data-id=\"2af0b78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PCF8574 \u2013 opinie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-578a706 elementor-widget elementor-widget-text-editor\" data-id=\"578a706\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Modu\u0142 PCF8574<\/strong> to prosty, lecz bardzo przydatny i skuteczny komponent, kt\u00f3ry cieszy si\u0119 sporym uznaniem w\u015br\u00f3d u\u017cytkownik\u00f3w. W\u015br\u00f3d jego najwi\u0119kszych zalet wymienia si\u0119 m.in. \u0142atwo\u015b\u0107 u\u017cytkowania \u2013 aby pod\u0142\u0105czy\u0107 zewn\u0119trzne sprz\u0119ty do magistrali, nie jest wymagana \u017cadna dodatkowa konfiguracja. Sporym plusem jest tak\u017ce atrakcyjna cena, kt\u00f3ra wynika z prostej, ale funkcjonalnej konstrukcji.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12c6f8a elementor-widget elementor-widget-heading\" data-id=\"12c6f8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PCF8574 i inne przydatne komponenty w sklepie Botland<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9074b2b elementor-widget elementor-widget-text-editor\" data-id=\"9074b2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/botland.com.pl\/ekspandery-wyprowadzen\/1210-pcf8574n-ekspander-wyprowadzen-mikrokontrolera-5904422303082.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>PCF8574<\/strong><\/a> to jeden z wielu ekspander\u00f3w port\u00f3w I\/O, kt\u00f3re mo\u017cna znale\u017a\u0107 w ofercie sklepu <a href=\"https:\/\/botland.com.pl\/\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Botland<\/strong><\/a>. Dzi\u0119ki rozwi\u0105zaniom tego typu mo\u017cna bez problemu zwi\u0119kszy\u0107 liczb\u0119 dost\u0119pnych wyprowadze\u0144, by obs\u0142u\u017cy\u0107 r\u00f3\u017cne dodatkowe komponenty i urz\u0105dzenia, a tym samym odblokowa\u0107 zupe\u0142nie now\u0105 funkcjonalno\u015b\u0107 w przygotowywanym projekcie. Warto zwr\u00f3ci\u0107 uwag\u0119 tak\u017ce na nisk\u0105 cen\u0119 tego modu\u0142u, zw\u0142aszcza w stosunku do jego mo\u017cliwo\u015bci.<\/p><p>W asortymencie <a href=\"https:\/\/botland.com.pl\/\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Botland<\/strong><\/a> znajdziesz tak\u017ce wiele innych element\u00f3w elektronicznych i urz\u0105dze\u0144, kt\u00f3re sprawdz\u0105 si\u0119 w r\u00f3\u017cnorodnych projektach. Opr\u00f3cz PCF8574 oferujemy wiele ekspander\u00f3w o wi\u0119kszej liczbie wyprowadze\u0144 \u2013 np. modu\u0142y 16-kana\u0142owe, takie jak <a href=\"https:\/\/botland.com.pl\/ekspandery-wyprowadzen\/2556-mcp23017-ekspander-wyprowadzen-i2c-16-kanalowy-5904422373399.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>MCP23017<\/strong><\/a>. Dzi\u0119ki temu mo\u017cesz wybra\u0107 rozwi\u0105zanie, kt\u00f3re najbardziej odpowiada wymaganiom Twojego projektu. Wi\u0119kszo\u015b\u0107 propozycji z tej kategorii to proste, niewielkie uk\u0142ady przeznaczone do monta\u017cu technik\u0105 THT. Dzi\u0119ki temu s\u0105 one kompatybilne z r\u00f3\u017cnymi popularnymi mikrokontrolerami \u2013 w tym z urz\u0105dzeniami marki Arduino i Raspberry Pi. Sprawd\u017a nasz\u0105 ofert\u0119 i z\u0142\u00f3\u017c zam\u00f3wienie ju\u017c teraz, by skorzysta\u0107 ze sprawdzonego wsparcia w robotyce i elektronice!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>PCF8574 to popularny ekspander wyprowadze\u0144 I\/O, kt\u00f3ry pozwala na pod\u0142\u0105czenie 8 dodatkowych urz\u0105dze\u0144. Co warto o nim wiedzie\u0107?<\/p>\n","protected":false},"author":22,"featured_media":80433,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-73448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PCF8574 \u2013 co to jest? Dane techniczne, schemat, cena i opinie - Botland<\/title>\n<meta name=\"description\" content=\"Ekspander I\/O PCF8574 to jeden z najcz\u0119\u015bciej wykorzystywanych modu\u0142\u00f3w tego rodzaju. 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