Hey everyone,
I'm very new with electronics and could use some expertise for my upcoming project. My goal is to create goggles with movable parts triggered by a button on a mobile app (so through bluetooth). To achieve this, I plan to use two SG90 servo motors controlled by an Arduino Nano 33 BLE, powered by a 7.4 Volt 850mAh Lithium-ion battery. Because it’s wearable, I’m trying to keep the hardware as small and light as possible.
I did some research and managed to set up a prototype (see image), but I'm looking for suggestions on how to improve the project. My main concerns are finding a more compact and lighter battery option to achieve a 8-hour runtime. Additionally, I want to ensure the safety and efficiency of my current circuit design. Any tips or advice on optimizing the circuit and battery are greatly appreciated! Thank you in advance!