I am working on a servo-operated camera panning base for use on my bicycle. My GoPro camera mounts on top of the base, which will be secured either to the bike's handlebars or possibly the front end of the bike frame. The servo is operated by a central Nano 33 BLE integrated in the base. The base unit will have its own power supply (to be determined later).
I have a second Nano 33 BLE acting as a peripheral headtracker unit, to be mounted to the top of my bike helmet. I downloaded the open source Headtracker application, which was specifically designed for RC aircraft, but seems to have most of the capability I am looking for already. I downloaded the Nano 33 BLE variant of that system to both BLE boards, and set them in bridge mode. Both BLE's USB connectors are currently connected to my pc's USB ports for their power supplies. On my benchtop setup, it works great. When I rotate the peripheral BLE, the central BLE rotates the camera and closely follows the motion of the peripheral.
Now I need to experiment with how the system will behave when I have everything mounted on my bike, which I know will require some software development to accommodate the moving frame of reference for both BLE's. As a first step I would like to provide the peripheral BLE with a battery or powerbank power supply. That BLE will only be using the IMU and bluetooth processes. I would like something that could furnish up to 8 hours of power for that board.
Can anyone recommend a suitable power supply for this? I would prefer something rechargeable, unless a small coin battery would be adequate. Also I would prefer to connect to the USB connector on the BLE, unless it would be better to hardwire into the VIN on the board.
Thanks!
