I'm working on designing my own smart ring, and I want it to be similar in size to the Oura Ring. I'm aiming for a design that features a single button and USB-C charging for tracking arm movements. Here are the parts I'm considering: a microcontroller, an IMU, a LiPo battery, a LiPo battery charger (like a TP4056), and a tactile switch. I'm really new to this, so I could use some guidance on whether these parts are suitable and if I'm missing anything. Any help would be appreciated!
1 Answer
Honestly, coding might end up being the simplest part of this project! You'll definitely want to look for a super small LiPo battery, something around 25mAh, and a tiny microcontroller like an ATtiny. Also, consider a capacitive touch switch instead of a physical one; it'll help save some space.
Could 25mAh handle everything? And do you have any specific parts in mind that you'd recommend?