Base M5GO Bottom2 is an expansion base specifically designed for Core2. The base integrates an MPU6886 six-axis IMU sensor, a digital microphone (SPM1423), and a 500 mAh lithium battery. Two sets of HY2.0-4P expansion interfaces expose commonly used ADC/DAC/UART pins, enabling connection to various types of sensors. A total of 10 programmable RGB LEDs (SK6812) on both sides of the base, combined with frosted light-diffusing strips, deliver a soft and comfortable lighting effect. The bottom features a pogo pin magnetic charging interface; when attached to a charging dock, current flows safely into the internal battery through the built-in TP4057 charging IC. In addition to charging, the pogo pin interface also exposes the host controller's I2C bus, allowing external expansion via magnetic attachment. Built-in mounting magnets and a LEGO-compatible hole pattern on the back enable seamless integration with other LEGO structural designs.
