Module USB v1.2
SKU:M020-V12
Description
Module USB v1.2 is a USB expansion module in the M5Stack stackable module series, based on the MAX3421E solution. It provides a standard USB 2.0 interface and supports USB host and peripheral functions. The module communicates with the host controller over SPI, and its onboard DIP switches can switch communication pins to support different M5 host platforms. It also provides GPIO expansion (5 inputs and 5 outputs) for peripheral control and status monitoring, together with a lithium battery holder for more flexible deployment. The module is suitable for USB peripheral access, protocol verification, embedded function expansion, and educational experiments.
Features
- MAX3421E USB controller solution
- Standard USB 2.0 interface supporting USB host and peripheral modes
- SPI communication interface for quick connection to M5 host controllers
- Dual DIP switch design for switching pins to support different hosts
- GPIO expansion (5 inputs and 5 outputs)
- Onboard lithium battery holder for flexible mobile deployment and power supply
Includes
- 1 x Module USB v1.2
Applications
- USB host and peripheral function expansion
- USB HID device access, including keyboards and mice
- USB storage read/write and data exchange
- USB protocol learning and educational experiments for embedded systems
- USB communication interface expansion for industrial equipment
Specifications
| Specification | Parameter |
|---|---|
| Chip Model | MAX3421E |
| USB Standard | USB 2.0 |
| Interface | SPI |
| Battery Socket Specification | 1.25mm-2P |
| Operating Temperature | 0 ~ 40°C |
| Product Weight | 13.3 g |
| Product Size | 54.0 x 54.0 x 12.8 mm |
| Package Size | 132.0 x 95.0 x 16.0 mm |
| Gross Weight | 28.0 g |
Schematics
1/1
PinMap
M5-Bus
Switch
The pins marked with
SW in the M5-Bus below can be switched with the DIP switches to support different host controllers.| PIN | LEFT | RIGHT | PIN |
|---|---|---|---|
| GND | 1 | 2 | INT (SW) |
| GND | 3 | 4 | |
| GND | 5 | 6 | EN |
| SPI_MOSI | 7 | 8 | |
| SPI_MISO | 9 | 10 | |
| SPI_SCLK | 11 | 12 | 3V3 |
| 13 | 14 | ||
| 15 | 16 | ||
| 17 | 18 | ||
| 19 | 20 | SPI_CS (SW) | |
| 21 | 22 | SPI_CS (SW) | |
| 23 | 24 | SPI_CS (SW) | |
| 25 | 26 | INT (SW) | |
| 27 | 28 | 5V | |
| 29 | 30 | BAT |
Model Size
Datasheets
Softwares
Arduino
UiFlow1
Video
- Module USB v1.2 Features and Example
Version Change
| Release Date | Product Changes | Note |
|---|---|---|
| 2024.3 | Added DIP switches to support basic/Core2/CoreS3 hosts | Version V1.2 |
| 2023.1 | Driver chip changed from MAX3421EEHJ+ to MAX3421EETJ+ | Version V1.1 |
| - | First release | / |
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