Lego Control+ Hub no 2 (Liebherr 9800 / 42100) Compatible Battery Box Insert Useful for substituting external power or a LiPo battery Photos of Hub's PCB including breakdown major chips STM32L431RCT6 microcontroller, TI CC2640 BLE, LB1836 motor driver Nov 19, 2019 Jan Kujawa batterybox@isbroken.com
