M5Stack AC Measure Unit (HLW8032)

Sale price £8.33
incl. VAT
excl. VAT
Only 7 units left

Awesome Extras

M5StackM5Stack CoreS3 ESP32S3 loT Development Kit
Sale price £48.25 incl. VAT excl. VAT

Introducing the AC Measure Unit, a high-performance single-phase AC measurement module with advanced isolation capabilities. This module utilises the powerful STM32+HLW8032 scheme to provide real-time monitoring of high-precision current, voltage, power, and other data.

Equipped with a built-in AC isolation chip, the B0505ST16-W5, and leveraging the EL357 optocoupler isolation chip for seamless communication with the STM32, this module provides a reliable and secure operation. The AC Measure Unit enables users to easily access the measured data through efficient I2C communication.

Designed for a wide range of applications, this versatile product is perfect for power supply information collection, remote smart home appliances, and other related fields. Experience the convenience and accuracy of real-time AC measurement with the AC Measure Unit.


  • 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


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 x 24 x 10.3mm
Package Size 136mm x 92mm x 13mm
Product Weight 8.8g
Package Weight 11.2g


Package Contents

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

Payment & Accreditations

Payment methods
Amazon American Express Maestro Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.