{"product_id":"20-stks-toetsenbord-4-knop-key-module-schakelaar-toetsenbord-voor-uno-mega-2560-breadboard_1590012","title":"20 Stuks 4-knops toetsenbordmodule voor Arduino","description":"\u003cdiv\u003e\u003cspan style=\"font-size: 16px\"\u003e\u003cstrong\u003eBeschrijving:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eDeze toetsenbordmodule kan direct worden aangesloten op een Arduino Uno, Mega 2560 of andere microcontrollers zoals AVR, STM32, ARM, PIC, AT89C51, STC, MSP430, STM8, FPGA, CPLD, enzovoort.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eHet betreft een 4-knops Common Cathode toetsenbordmodule.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eAansluitingen: GND, K1, K2, K3, K4 (4 PIN OUT, 2.54 mm).\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eAfmetingen: 12.7 mm x 33 mm.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cspan style=\"font-size: 16px\"\u003e\u003cstrong\u003ePakketinhoud:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e20 x toetsenbordmodule\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eVoorbeeldcode voor Arduino Uno\/Mega 2560:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003e******************************************************\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eint K1 = 13;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eint K2 = 12;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eint K3 = 11;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eint K4 = 10;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eint buttonState = 0; \/\/ Variabele voor het lezen van de status van de drukknop\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003evoid setup() {\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003epinMode(K1, INPUT);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003epinMode(K2, INPUT);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003epinMode(K3, INPUT);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003epinMode(K4, INPUT);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003edigitalWrite(K1, HIGH);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003edigitalWrite(K2, HIGH);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003edigitalWrite(K3, HIGH);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003edigitalWrite(K4, HIGH);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eSerial.begin(9600);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003e}\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003evoid loop() {\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ebuttonState = digitalRead(K1);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eif (!buttonState) Serial.print(\"K1 ingedrukt\\n\");\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ewhile (!buttonState); \/\/ Wacht tot de knop is losgelaten\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ebuttonState = digitalRead(K2);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eif (!buttonState) Serial.print(\"K2 ingedrukt\\n\");\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ewhile (!buttonState);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ebuttonState = digitalRead(K3);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eif (!buttonState) Serial.print(\"K3 ingedrukt\\n\");\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ewhile (!buttonState);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ebuttonState = digitalRead(K4);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003eif (!buttonState) Serial.print(\"K4 ingedrukt\\n\");\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003ewhile (!buttonState);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003edelay(100);\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003e}\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px\"\u003e******************************************************\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-inline-gallery\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/f862b9eb-1b9d-4cb9-9590-97abe5c7979b_3a095fb8-f40f-4bc9-900c-fdddfb9a8ed7.jpg?v=1779919163\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/18f4684e-2105-43fe-a0af-07d7fde40e65_95964992-74bc-4f23-9fdc-d6854df5a1c6.jpg?v=1779919175\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/3315e5c6-2b49-4bd8-9450-5f81ef864f51_b9b289be-925d-4b32-81ca-1049ab21eb26.jpg?v=1779919181\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/4fc7ec29-121f-4d06-87e9-0e651d585d0f_4578766b-beca-435a-bdd9-7078b229c78a.jpg?v=1779919187\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/bd9a964e-9b5d-41e3-bada-7bd7ee5f1770_725fa77a-016b-4a2e-847c-13c9a3fc096d.jpg?v=1779919190\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/f862b9eb-1b9d-4cb9-9590-97abe5c7979b_808f82ac-8cc3-47f6-9f9c-e60f7ce2ddbb.jpg?v=1779919196\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/f43917e5-289a-42aa-98c0-b3f70c22de77_c1957baf-6f02-4495-b01b-7ae8110cf7b9.jpg?v=1779919200\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/ad8a9f62-c612-420a-85de-035f7ba4034d_d7bdebbf-5e55-4afd-ab9e-0b7342a18bd7.jpg?v=1779919207\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/18f4684e-2105-43fe-a0af-07d7fde40e65_e60faacb-bc6a-4fbe-8137-a98a8420b8fc.jpg?v=1779919212\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/3315e5c6-2b49-4bd8-9450-5f81ef864f51_639b7dc5-65a1-46f8-9d0a-97f60ad2ee85.jpg?v=1779919216\" alt=\"Product image\" loading=\"lazy\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/4fc7ec29-121f-4d06-87e9-0e651d585d0f_f0cb6c31-d742-400d-b239-82df95c5e7b7.jpg?v=1779919221\" alt=\"Product image\" loading=\"lazy\"\u003e\n\u003c\/div\u003e","brand":"AllesXL","offers":[{"title":"Standaard","offer_id":53078347907408,"sku":"ALXNL7643409678503","price":47.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/2003\/8224\/files\/f862b9eb-1b9d-4cb9-9590-97abe5c7979b_3a095fb8-f40f-4bc9-900c-fdddfb9a8ed7.jpg?v=1779919163","url":"https:\/\/allesxl.com\/products\/20-stks-toetsenbord-4-knop-key-module-schakelaar-toetsenbord-voor-uno-mega-2560-breadboard_1590012","provider":"allesxl","version":"1.0","type":"link"}