LiPo-Ladechip:
https://www.amazon.de/gp/product/B015IK1YYC/ref=oh\_aui\_detailpage\_o00\_s00?ie=UTF8&psc=1

DC Step-Up-Booster 5V:
https://www.amazon.de/gp/product/B015D1A618/ref=oh\_aui\_detailpage\_o04\_s00?ie=UTF8&psc=1

Taster:
https://www.conrad.de/de/drucktaster-24-v-dcac-01-a-1-x-aus-ein-rafi-1101070110104-tastend-1-st-705110.html

Li-Ion-Akku 3,7V 750mAh:
https://www.amazon.de/gp/product/B01581AVTA/ref=oh\_aui\_detailpage\_o01\_s00?ie=UTF8&psc=1

Bluetooth-Modul:
https://www.amazon.de/gp/product/B01FCW90VU/ref=oh\_aui\_detailpage\_o04\_s00?ie=UTF8&psc=1