¡¡El uso de los módulos de radio se realiza bajo tu propio riesgo legal!!

Feather Fona:
https://www.exp-tech.de/module/wireless/gsmgprs/6928/adafruit-feather-32u4-fona

Pantalla Nextion:
https://www.exp-tech.de/displays/lcd/7178/itead-studio-nextion-nx8048t070-generic-7.0-hmi-tft-lcd-touch-display

Baterías LiPo:
https://www.exp-tech.de/zubehoer/batterien-akkus/lipo-akkus/7251/lipo-akku-3000mah-3.7-v-2-mm-jst

Refuerzo Step-Up:
https://www.amazon.de/gp/product/B00VJAC4D6/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1

Enchufe de timbre:

Módulo Funk DRA818U:
https://www.box73.de/product\_info.php?products\_id=3245

Módulo Funk DRA818V:
https://www.box73.de/product\_info.php?products\_id=3425

Antena GSM:
https://www.amazon.de/gp/product/B07JFXJW3Q/ref=ppx\_yo\_dt\_b\_asin\_title\_o01\_s00?ie=UTF8&psc=1