Quantity   Component name
1 × Seeed Studio XIAO nRF52840 Sense <a target="_blank" rel="noopener noreferrer" href="https://www.berrybase.de/seeed-xiao-ble-nrf52840-sense-microcontroller">https://www.berrybase.de/seeed-xiao-ble-nrf52840-sense-microcontroller</a>
1 × 3.7V LiPo battery 402025 150mAh <a target="_blank" rel="noopener noreferrer" href="https://www.berrybase.de/lp-402025-lithium-polymer-lipo-akku-3-7v-150mah-mit-2-pin-jst-stecker">https://www.berrybase.de/lp-402025-lithium-polymer-lipo-akku-3-7v-150mah-mit-2-pin-jst-stecker</a>
1 × Powerswitch, ON-ON, 8.6x4.3x4mm, <a target="_blank" rel="noopener noreferrer" href="https://www.berrybase.de/schiebeschalter-printmontage-on-on-2-stellig-8.6x4.3x4mm-gerade">https://www.berrybase.de/schiebeschalter-printmontage-on-on-2-stellig-8.6x4.3x4mm-gerade</a>