UPDATE: this actual Wii Bluetooth module does work perfectly with Bluetooth passthrough! No soldering required. : r/DolphinEmulator
Amazon.com: Wii Fit Game with Balance Board : Video Games
Wii Balance Board Cloud Scale - Hackster.io
DIY: Build a hackable, weight-tracking scale with a sense of humor using Raspberry Pi | ZDNET
Original OEM Nintendo Wii Bluetooth Module J27H002 Logic Board [Wiipt010] - $9.99 : Zen Cart!, The Art of E-commerce
A) Schematic illustration of the system setup. The participant stands... | Download Scientific Diagram
Amazon.com : BoBo Core Trainer Balance Board, Whole Family Fitness Device with Free Connected Game & Exercises App. Professional 15" Wood Board with Built-in Bluetooth Motion Sensor. for Kids, Adults & Athletes. :
Nintendo Wii Balance Board Replacement Only Official Bluetooth Technology White | eBay