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The StampS3 GroveBreakOut is an expansion board for the M5StampS3, featuring six Grove connectors compatible with M5's port A/B/C standards (I2C, IO, and UART). It has an integrated holder for 16340/18350 lithium batteries and a 1.25mm@2P lithium battery connector for independent system power.
The board includes battery and USB power selection switches, touch switches for reset control, a lithium battery charging chip, and a 5V boost system. Mounting holes make installation easy, making it ideal for educational projects, IoT, wearables, automation, and robotics.
Note: The StampS3 Grove Breakout only supports the M5StampS3 with 1.27mm Header Pins
| Grove interface | 6x Grove (I2C/GPIO/UART) |
| Battery | 16340/18350 Lithium battery specifications |
| Bar specification | 1.25mm & 2.54mm |
| Lithium battery interface | 1.25mm@2P |
| Grove interface Specifications | HY2.0-4P |
| Fixed hole size | Diameter 3mm |
| Operating Temperature | 0- 40°C |
| Product Size | 47.5 x 38 x 23.2mm |
| Package Size | 75 x 45 x 29mm |
| Product Weight | 10g |
| Package Weight | 22.1g |















