I’m working on a hobby project to take some measurements throughout the day using my phone with the IMU on the Nano 33 BLE. I want to be able to power it with a battery as well as plug it in and charge it at night without having to pull the battery (like a cell phone). This is out of my wheelhouse - I’m more of a software guy and appreciate how easy the BLE is to work with. My end goal is to buy / build the Nano 33 BLE equivalent of something like this: Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy : ID 2124 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
From what reading I’ve done on the forum it appears I can wire directly into the 3.3v, but that bypasses all the safety protections. It’s more efficient, but I’m not really worried about efficiency at this stage so much as getting a quick and effective solution in place. Any advice?
Edit Compactness is a priority, so using the existing usb port for a 5v battery won’t work. I need to keep it as tight as possible.