Description
Base M5GO Bottom2 v1.3 is an expansion base designed specifically for the M5Stack Core2 series. It features an onboard BMI270 6-axis IMU, LMD4020 digital microphone, and 500 mAh built-in lithium battery. Two HY2.0-4P expansion ports expose commonly used ADC, DAC, and UART peripheral pins for convenient connection to various sensor modules.
The base integrates 10 programmable SK6812 RGB LEDs on both sides. Combined with frosted light guides, they provide soft and even illumination. The bottom uses a Pogo Pin magnetic charging interface. When connected to a magnetic charging base, the onboard TP4057 charging management IC safely and steadily charges the built-in battery. The Pogo Pin interface also exposes the host controller's I2C bus, supporting magnetic external expansion. Built-in magnets and LEGO-compatible mounting holes on the back allow seamless integration with LEGO structures. It is suitable for IoT development, motion-sensing interaction, and creative audio-visual projects.
Features
- Compatible with the Core2 series
- Digital microphone
- Programmable LED light bar
- 500mAh lithium battery
- HY2.0-4P expansion ports
- Compatible with LEGO brick structures
- Magnetic attachment design on the back
Includes
- 1 x Base M5GO Bottom2 v1.3
- 2 x M3 * 16mm socket-head machine screws
- 2 x M3 * 18mm socket-head machine screws
- 1 x 2.5mm L-shaped hex key (for M3 screws)
Applications
- Core2 series expansion
- IoT development
- Motion-sensing interaction
- Creative audio-visual projects
Specifications
| Specification | Parameter |
|---|---|
| Microphone | PDM microphone (LMD4020T261-OAC23) |
| LEDs | 10 x SK6812 programmable RGB LEDs |
| Lithium battery | 500mAh @ 3.7V |
| Lithium battery charging IC | TP4057 |
| IMU | BMI270 |
| Product size | 54.0 x 54.0 x 15.0mm |
| Product weight | 30.9g |
| Package size | 132.0 x 95.0 x 16.0mm |
| Gross weight | 53.2g |
Product Comparison
| Product Comparison | Base M5GO Bottom2 v1.3 
|
Base M5GO Bottom 
|
Base M5GO Bottom2 
|
Base M5GO Bottom3 
|
|---|---|---|---|---|
| Core | Core2 | Basic (Core) | Core2 | CoreS3 |
| RGB | 10*SK6812 | 10*SK6812 | 10*SK6812 | 10*WS2812 |
| IMU | BMI270 | / | MPU6886 | / |
| IR | / | IR | / | IR |
| BATTERY | 500mAh | 500mAh | 500mAh | 500mAh |
| MIC | LMD4020 | SPQ2410 | LMD4737 | / |