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Unit AIN4-20mA

SKU:U162

Description

Unit AIN4-20mA is a single-channel 4~20mA current analog measurement unit. It uses the STM32G030F6 main control chip and communicates with the M5 host via I2C. It supports switching between internal or external power supply wiring modes through jumper caps. The onboard power isolation chip and built-in op-amp circuit can accurately measure external current sensors, ensuring signal accuracy and system safety. It is suitable for fields such as power system equipment monitoring, motor control, energy management, and automation and industrial process control.

Features

  • STM32
  • I2C communication
  • Supports 2 or 4-wire sensors, switchable via jumper caps
  • Built-in electrical isolation chip
  • Supports Arduino, UIFlow, and other programming platforms

Includes

  • 1 x Unit AIN4-20mA
  • 1 x VH3.96-4.0P
  • 1 x HY2.0-4P Grove connection cable (20cm)
  • 3 x Jumper caps

Applications

  • Power system equipment monitoring
  • Motor control
  • Energy management
  • Automation and industrial process control

Specifications

Specification Parameter
MCU STM32G030F6P6
Signal Isolation Chip HCNR200
Op-Amp Chip SGM321YC5/TR
I2C Communication Address 0x55
IN+ and IN- Input Impedance Typical Value 200Ω
Operating Temperature 0 ~ 40°C
Product Size 56.0 x 24.0 x 11.3mm
Product Weight 8.8g
Package Size 138.0 x 93.0 x 12.3mm
Gross Weight 17.1g

Learn

Jumper Cap Connection and Instructions

  • When using a passive current-type sensor, please connect the DC 24V power supply input, connect the sensor signal to IN+ and IN-, and adjust the jumper cap as shown below:
  • When using an active current-type sensor, connect the sensor signal to IN+ and IN-, and adjust the jumper cap as shown below:

Schematics

PinMap

Unit AIN4-20mA

HY2.0-4P Black Red Yellow White
PORT.A GND 5V SDA SCL

Model Size

module size

Datasheets

Softwares

Arduino

UiFlow1

UiFlow2

Internal Firmware

Protocol

module size