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4Relay Module

SKU:M121

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 DC5521 female 5.5*2.1mm@5-24V (positive inside, negative outside)
Single relay power consumption 5V@40mA
Coil operating time 6ms
Coil release time 4ms
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 54.2*54.2*13.2mm
Package size 95*65*25mm

Schematic

Pin Mapping

M5Core GPIO22 GPIO21 5V GND
4Relay Module SCL SDA 5V GND

Example

Arduino

UIFlow

How to use Module 4relay on the UIFlow 1.0 graphical programming platform and related API instructions.