Description

4-Relay Module is a 4-Channel Relay module compatible with M5Stack Core and Core2 series, with 4-channel mechanical relays (NO, COM). It supports I2C protocol. Also, it can be set by jumper into active/passive modes. This relay module supports DC control only, and Maximum load 24W (DC 24V@1A). Suitable for small load circuit control.

Product Features

Embedded with STM32F030F4:
- I2C communication (Addr: 0x26)
Relay:
- 4x relay module (COM, NO interface)
- Maximum load 24W (DC 24V@1A)
Supports two operation modes (selected by jumper).
- Active mode.
  - Power input connects with relay NO port, to supply load directly.
- Passive mode.
  - Power input not connects to the relay port. The user's circuit needs individual power supply.
Power input (Support DC input only).
DC 5-24V INPUT -> M5 BUS HPWR Bus (Controlled by jumper. When stacking with several different M5 modules, HPWR Bus can supply power to other modules that need 24V power, such as SERVO2 module, etc.)
Development platform: Arduino, UIFlow(coming soon)

Includes

1x 4-Relay Module
5x Wiring Terminal 2.54mm-2P (green)
10x PIN Jumper
1x Wiring Instructions

Application

On/off control
Solenoid valve control
DC control load on/off

Specification

Specifications	Parameters
Main Control Chip	STM32F030F4
Communication interface	I2C communication interface (addr: 0x26)
Support operating mode	Active control / Passive control
Relay channels	4x(COM, NO interface)
Power input interface	DC 5-24V
Load capacity	4 channels max. 24W (DC 24V@1A)
Relay terminal specifications	2.54-2P
Net Weight	37.2g
Gross Weight	37.6g
Product size	54.254.213.2mm
Package size	956525mm