Description
4Relay Module 13.2_V1.1 is a versatile relay module designed to simplify users’ circuit control. With its onboard 4-channel mechanical relays (NO, COM), this module offers reliable and efficient control for DC circuitry.
Featuring I2C communication protocol, the 4Relay Module 13.2_V1.1 optimizes the IO resources, ensuring seamless integration into projects. The convenient jumper cap design allows users to effortlessly switch between active and passive relay modes, catering to various circuit requirements.
This relay module is specifically designed for DC circuit switching, providing a maximum load capacity of 24W (DC 24V @ 1A) across its 4 channels. It also includes built-in external power voltage detection and a DCDC circuit to power the controllers, enhancing overall safety and stability.
Features
STM32G030F6® 32-bit Cortex®-M0+ CPU
I2C communication(addr: 0x26)
4 relay control, maximum load capacity 24W (DC 24V@1A)
Supports two modes of operation (active and passive)
Voltage detect
Support Arduino, UIFlow and other programming platforms
Includes
1x 4Relay Module 13.2 V1.1
5x Wiring Terminal 2.54mm-2P (green)
10x PIN Jumper
1x Wiring Instructions
Applications
On/off control
Solenoid valve control
DC control load on/off
Specification

Resources
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
Product Size
54*54*13.2mm
Package Size
95*65*25mm
Product Weight
33.2g
Package Weight
63.7g
Schematic
PinMap
Module Size
Protocol