pdf-icon

AC Measure Unit

SKU:U164

Description

AC Measure Unit is a single-phase AC measurement module with isolation capabilities. It utilizes the STM32+HLW8032 scheme to monitor high-precision current, voltage, power, and other data in real time. The module features a built-in AC isolation chip, B0505ST16-W5, and communicates with the STM32 through the EL357 optocoupler isolation chip. Users can access the measured data via I2C communication. This product is suitable for applications in power supply information collection, remote smart home appliances, and other related fields.

Features

  • STM32G030@M0+ 32-bit MCU,64 KB Flash, 8 KB RAM
  • Single-phase alternating current 100-240V/10A measurement
  • I2C Communication (0x42)
  • Programming platforms: UIFlow, Arduino

Includes

  • 1*AC Measure Unit
  • 1*HY2.0 Cable(20CM)
  • 1*3.96-4P terminal

Applications

  • Smart home appliances
  • Metering sockets
  • Smart WIFI socket
  • Electric vehicle charging pile
  • Street lamp control system

Specification

Resources Parameters
MCU STM32G030@M0+ 32-bit MCU,64 KB Flash, 8 KB RAM
AC current acquisition chip HLW8032
Isolation chip B0505ST16-W5
Optocoupler communication chip EL357NB
I2C address 0x42
Measure voltage/current 100-240VAC/10A
Product Size 56*24*10.3mm
Package Size 136mm*92mm*13mm
Product Weight 8.8g
Package Weight 11.2g

CoreS3 (K128)

CORE2 (K010)

M5StickC PLUS (K016-P)

AtomS3 (C123)

StampS3 (S007)

STATION 485 (K123)

TOUGH (K034)

Schematic

schematics

EasyLoader

PinMap

image

Module Size

module size

Examples

Arduino

UIFlow

UIFlow Blocks

  • Init device I2C address
image
  • Set voltage coefficient value ( 0 ~ 255 )
image
  • Set current coefficient value ( 0 ~ 255 )
image
  • Save voltage & current coefficient in flash
image
  • Set device I2C address
image
  • Get voltage (string)
image
  • Get current (string)
image
  • Get active power (string)
image
  • Get apparent power (string)
image
  • Get power factor (string)
image
  • Get KW/H (string)
image
  • Get voltage raw value
image
  • Get curremt raw value
image
  • Get active power raw value
image
  • Get apparent power raw value
image
  • Get power factor raw value
image
  • Get KW/H raw value
image
  • Get voltage coeeficient
image
  • Get current coefficient
image
  • Is data ready
image
  • Get device firmware version
image