AIN4-20mA Unit

SKU:U162

Description

AIN4-20mA Unit is a highly capable single-channel 4~20mA current analog measurement unit. Powered by the STM32G030F6 main control chip, it communicates seamlessly with the M5 host through i2c, ensuring efficient and reliable data transmission.

This unit offers flexibility in wiring options, allowing users to switch between internally or externally powered configurations using jumper caps. This versatility enables seamless integration into various systems and setups.

Equipped with an onboard power isolation chip and a built-in op amp circuitry, the AIN4-20mA Unit ensures accurate measurement of external current sensors while maintaining signal accuracy and system safety. This makes it an ideal choice for applications such as power system equipment monitoring, motor control, energy management and automation, and industrial process control.

Features

  • STM32G030F6® 32-bit Cortex®-M0+ CPU
  • I2C communication
  • Supports 2 or 4-wire sensors, jumper cap switching
  • Built-in galvanic isolation chip
  • Support Arduino, UIFlow and other programming platforms

Includes

  • 1* AIN4-20mA Unit
  • 1 × VH3.96-4.0P
  • 1*grove wire(20cm)
  • 3*Jumper caps

Applications

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

Specification

Resources Parameters
MCU STM32G030F6(64 Kbytes of Flash/8 Kbytes of SRAM)
Signal isolation chip HCNR200
Op amp chip SGM321YC5/TR
I2C address 0x55
Operating temperature 0-40°C
Product Size 56*24*12mm
Package Size 136* 92* 13mm
Product Weight 8.2g
Package Weight 15.6g

Schematic

schematics

Jumper cap connection and instructions

  • If your current sensor already has an external power supply, the jumper cap is connected as shown on the left
  • If your current sensor does not have an external power supply, connect the jumper cap as shown on the right, and connect the interface of AIN4-20mA Unit to the appropriate external power supply as needed.
schematics

Module Size

module size

Protocol

module size

Examples

Arduino

UIFlow

UIFlow Blocks

  • Init device I2C address
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  • Get ADC 16bit raw value
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  • Get current value
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  • Get device firmware version
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  • Set device I2C slave address
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