{"product_id":"teclado-capacitivo-tactil-mpr121-matricial-4x3-12-teclas","title":"Teclado Capacitivo Táctil MPR121 Matricial 4x3 12 Teclas","description":"\n      \u003cdiv style=\"\n    font-family: Arial, sans-serif;\n    max-width: 700px;\n    margin: 20px auto;\n    padding: 30px;\n    background: #fff;\n    color: #333;\n    border-radius: 8px;\n    box-shadow: 0 4px 12px rgba(0,0,0,0.1);\n    line-height: 1.6;\n  \"\u003e\n        \n        \u003ch1 style=\"\n    color: #008060;\n    text-align: center;\n    margin-bottom: 20px;\n    font-size: 24px;\n  \"\u003e\u003c\/h1\u003e\n        \u003cp\u003eTransformador Cargador USB desde 6 \/ 24Vdc a 5V para vehículos celulares\u003c\/p\u003e\n      \n\n        \u003ch2 style=\"\n    color: #008060;\n    font-size: 20px;\n    border-bottom: 1px solid #eee;\n    padding-bottom: 8px;\n    margin: 25px 0 15px 0;\n  \"\u003eCaracterísticas\u003c\/h2\u003e\n        \u003cul style=\"padding-left: 0;\"\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Este teclado utiliza el chip MPR121 que dispone de 12 entradas capacitivas y una salida I2C, permite controlar fácilmente (pocos cables) el teclado con cualquier microcontrolador en I2c (por ejemplo: Arduino)\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              La placa dispone de 4 agujeros para poder montarlo sobre un panel o caja\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Es muy sensible al tacto, muy fácil de teclear\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Tensión de entrada admisible: DC 6 a 24V\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Tensión de salida USB: 5V hasta 2Amp, máximum 3Amp con disipación de calor\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Eficiencia de conversión: 97.5 %\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              APLICACIONES:\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Por ejemplo, para cagar celular en vehículos\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Alimentación: 3.3 V (ver foto con Arduino)\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              12 teclas de detección de capacitancia\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Auto-configuración para cada Entrada de detector\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Auto-calibración para cada Entrada de detector\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Toque umbral \/ liberación y eliminación de rebote para la detección táctil\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Ejemplo de conexión a una Tarjeta Arduino Uno o Nano:\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              Teclado Arduino\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              VCC -\u0026gt; 3.3V\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              GND -\u0026gt; GND\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              SDA -\u0026gt; A4 SDA del I2c\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              SCL -\u0026gt; A5 SCL del I2c\n            \u003c\/li\u003e\n          \n            \u003cli style=\"\n    margin-bottom: 8px;\n    position: relative;\n    padding-left: 25px;\n    list-style: none;\n  \"\u003e\n              \u003cspan style=\"\n    position: absolute;\n    left: 0;\n    color: #008060;\n  \"\u003e•\u003c\/span\u003e\n              IRQ -\u0026gt; D2 Interrupción.\n            \u003c\/li\u003e\n          \n        \u003c\/ul\u003e\n      \n      \u003c\/div\u003e\n    ","brand":"ArduinoVE","offers":[{"title":"Default Title","offer_id":52478408950070,"sku":"ATETE0368","price":11.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/9634\/4886\/files\/jQQy_DeCr7jtDdCEM5EnIinBpEyZMGhdou-0XS2qysU.jpg?v=1753762788","url":"https:\/\/www.phmshop.com\/products\/teclado-capacitivo-tactil-mpr121-matricial-4x3-12-teclas","provider":"PhM Shop Electronics","version":"1.0","type":"link"}