This Matrix Keypad 3 X 4 has 12 buttons, arranged in a telephone-line 3x4 grid. The keys are connected into a matrix,hence only 7 microcontroller pins (3-columns and 4-rows) are required to scan the pad.
It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.
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{"id":1416938127432,"title":"4 X 3 Flexible Matrix Keypad Membrane Switch Keyboard","handle":"membrane-3x4-matrix-keypad-extras","description":"\u003cp\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003eMatrix Keypad 3 X 4\u003c\/strong\u003e\u003cspan\u003e has 12 buttons, arranged in a telephone-line 3x4 grid. The keys are connected into a matrix,hence only 7 microcontroller pins (3-columns and 4-rows) are required to scan the pad.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDetails:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePad Size: 70 x 76 x 0.8mm\u003c\/li\u003e\n\u003cli\u003eCable length: 85mm (include connector)\u003c\/li\u003e\n\u003cli\u003eConnector: dupont 7 pins, 0.1 inch (2.54mm) Pitch\u003c\/li\u003e\n\u003cli\u003eMount style: Self-Adherence\u003c\/li\u003e\n\u003cli\u003eMax. circuit rating: 35VDC, 100mA\u003c\/li\u003e\n\u003cli\u003eInsulation spec.: 100M Ohm, 100V\u003c\/li\u003e\n\u003cli\u003eDielectric withstand: 250Vrms (60Hz, 1min)\u003c\/li\u003e\n\u003cli\u003eContact bounce: ≤5ms\u003c\/li\u003e\n\u003cli\u003eLife expectancy: 1 million closures\u003c\/li\u003e\n\u003cli\u003eWeight: 7.5g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/AKP-2_480x480.png?v=1593466793\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/membrane-keyboard-arduin-tutorial-schematics_480x480.png?v=1593466788\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eLibrary\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eSample Code\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eTutorial\u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/r3z5GIRbzCY\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e","published_at":"2022-12-06T11:27:41+05:30","created_at":"2018-09-01T14:05:14+05:30","vendor":"ThinkRobotics.in","type":"Control Switch","tags":["3 X 4","3X4","4 X 3","4X3","4X4 keyboard","ELC7","IN-MOD","Input Device","Keyboard","Keypad","membrane keyboard"],"price":9999,"price_min":9999,"price_max":9999,"available":true,"price_varies":false,"compare_at_price":12599,"compare_at_price_min":12599,"compare_at_price_max":12599,"compare_at_price_varies":false,"variants":[{"id":12744470167624,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ELC7016","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"4 X 3 Flexible Matrix Keypad Membrane Switch Keyboard","public_title":null,"options":["Default Title"],"price":9999,"weight":10,"compare_at_price":12599,"inventory_management":"shopify","barcode":"12744470167624","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/products\/4x3-numeric-keypad-pmdway-3_795x699_c9243477-c988-4c1f-b097-062dac5c2f7c.jpg?v=1623313405","\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1FgwgX6LuK1Rjy0Fhq6xpdFXaK.jpg?v=1623313423"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/products\/4x3-numeric-keypad-pmdway-3_795x699_c9243477-c988-4c1f-b097-062dac5c2f7c.jpg?v=1623313405","options":["Title"],"media":[{"alt":"4 X 3 Flexible Matrix Keypad Membrane Switch Keyboard","id":20812983140438,"position":1,"preview_image":{"aspect_ratio":1.137,"height":699,"width":795,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/4x3-numeric-keypad-pmdway-3_795x699_c9243477-c988-4c1f-b097-062dac5c2f7c.jpg?v=1623313405"},"aspect_ratio":1.137,"height":699,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/4x3-numeric-keypad-pmdway-3_795x699_c9243477-c988-4c1f-b097-062dac5c2f7c.jpg?v=1623313405","width":795},{"alt":"4 X 3 Flexible Matrix Keypad Membrane Switch Keyboard","id":20812983959638,"position":2,"preview_image":{"aspect_ratio":1.267,"height":498,"width":631,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1FgwgX6LuK1Rjy0Fhq6xpdFXaK.jpg?v=1623313423"},"aspect_ratio":1.267,"height":498,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1FgwgX6LuK1Rjy0Fhq6xpdFXaK.jpg?v=1623313423","width":631}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003eMatrix Keypad 3 X 4\u003c\/strong\u003e\u003cspan\u003e has 12 buttons, arranged in a telephone-line 3x4 grid. The keys are connected into a matrix,hence only 7 microcontroller pins (3-columns and 4-rows) are required to scan the pad.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDetails:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePad Size: 70 x 76 x 0.8mm\u003c\/li\u003e\n\u003cli\u003eCable length: 85mm (include connector)\u003c\/li\u003e\n\u003cli\u003eConnector: dupont 7 pins, 0.1 inch (2.54mm) Pitch\u003c\/li\u003e\n\u003cli\u003eMount style: Self-Adherence\u003c\/li\u003e\n\u003cli\u003eMax. circuit rating: 35VDC, 100mA\u003c\/li\u003e\n\u003cli\u003eInsulation spec.: 100M Ohm, 100V\u003c\/li\u003e\n\u003cli\u003eDielectric withstand: 250Vrms (60Hz, 1min)\u003c\/li\u003e\n\u003cli\u003eContact bounce: ≤5ms\u003c\/li\u003e\n\u003cli\u003eLife expectancy: 1 million closures\u003c\/li\u003e\n\u003cli\u003eWeight: 7.5g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/AKP-2_480x480.png?v=1593466793\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/membrane-keyboard-arduin-tutorial-schematics_480x480.png?v=1593466788\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eLibrary\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC7016\"\u003eSample Code\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eTutorial\u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/r3z5GIRbzCY\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e"}
