SKU:M122














Module13.2 4In8Out is a stackable 8-channel MOS driver output + 4-channel passive contact input IO expansion control module. It uses STM32F030 as the IO expansion chip, communicates via I2C protocol, supports 9 ~ 24V DC power input on an independent port, and integrates an MP1584 DC-DC circuit to provide 5V/3A power to the main controller. The 8 output channels use AO3400A MOSFETs with a common power anode, capable of directly driving loads with a maximum switching current of 1A per channel. The 4 input channels are common-ground passive contact inputs — connecting active signals or signals greater than 5V is prohibited. The module connects to the main controller via the M5-Bus interface, supports stacking expansion, and is suitable for multi-channel load driving, limit switch detection, button detection, and similar applications.
| Specification | Parameter |
|---|---|
| MCU | STM32F030F4P6 |
| Communication Interface | I2C @ 0x45 (configurable) |
| Supply Voltage | 9 ~ 24V |
| Output Channels | 8 |
| Output Current | <= 1A per channel, total <= 8A |
| Input Channels | 4 |
| Channel Interface | KF2EDGR-2.54-2P |
| Product Size | 54.0 x 54.0 x 19.7mm |
| Product Weight | 21.9g |
| Package Size | 80.0 x 55.0 x 28.0mm |
| Gross Weight | 52.5g |


| PIN | LEFT | RIGHT | PIN |
|---|---|---|---|
| GND | 1 | 2 | |
| GND | 3 | 4 | |
| GND | 5 | 6 | |
| 7 | 8 | ||
| 9 | 10 | ||
| 11 | 12 | 3V3 | |
| 13 | 14 | ||
| 15 | 16 | ||
| SDA | 17 | 18 | SCL |
| 19 | 20 | ||
| 21 | 22 | ||
| 23 | 24 | ||
| HPWR | 25 | 26 | |
| HPWR | 27 | 28 | 5V |
| HPWR | 29 | 30 |