M5Stack AC Measure Unit Powermeter HLW8032

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Product details

The M5Stack AC Measure Unit HLW8032 is an innovative AC measurement module designed for precise real-time monitoring of current, voltage, and power. Equipped with the STM32+HLW8032 schematic, it enables accurate tracking of current and voltage values, as well as direct reading of the current power in watts via I2C communication. The module features a B0505ST16-W5 isolation chip and communicates with the STM32 through an EL357 optocoupler isolation chip. It is ideal for power supply information collection and for remote smart home devices.

Features:

  • STM32G030@M0+ 32-bit MCU with 64 KB Flash and 8 KB RAM.
  • Measurement of single-phase AC 100-240V/10A, including current and voltage measurement.
  • Direct reading of current power in watts via I2C communication (0x42).
  • Compatible with programming platforms such as UIFlow and Arduino.

Application Examples:

  • Ideal for smart home appliances.
  • Used in measuring power outlets.
  • Suitable for smart Wi-Fi plugs.
  • Can be used in electric vehicle charging stations.
  • Suitable for streetlight control systems.

Technical Specifications:

  • Manufacturer: M5Stack
  • Manufacturer SKU: U164
  • MCU: STM32G030@M0+ 32-bit MCU, 64 KB Flash, 8 KB RAM
  • AC measurement chip: HLW8032
  • Isolation chip: B0505ST16-W5
  • Optocoupler communication chip: EL357NB
  • I2C address: 0x42
  • Voltage/Current measurement range: 100-240VAC/10A
  • Dimensions: 56 x 24 x 10.3 mm
  • Weight: 17 g

Package Contents:

  • 1x M5Stack AC Measure Unit Powermeter HLW8032
  • 1x Grove cable (20 cm)
  • 1x 3.96-4P terminal block.

Key specifications

Development board type
Kit
Memory
0 MB
Item number
40068884

General information

Manufacturer
M5Stack
Category
Development boards + Kits
Release date
14.11.2023

Development board properties

Development board type
Kit
Memory
0 MB
Flash memory
8 kB

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1x 3.96-4P connection terminal, 1x Grove cable (20cm), 1x M5Stack AC Measure Unit Powermeter HLW8032
Additionally required (not included)
1x Grove cable (20cm)

Product dimensions

Length
56 mm
Width
24 mm
Height
10.30 mm
Weight
17 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Development boards + Kits» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 11.Arduino
    0.3 %
  • 11.Lilygo
    0.3 %
  • 11.M5Stack
    0.3 %
  • 14.HutoPi
    0.5 %
  • 14.Shelly
    0.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Arduino
    0 days
  • 1.M5Stack
    0 days
  • 1.Shelly
    0 days
  • 1.WaveShare
    0 days
  • 5.Raspberry Pi
    3 days

Return rate

How often is a product of this brand in the «Development boards + Kits» category returned?

Source: Digitec Galaxus
  • 5.Joy-it
    0.9 %
  • 5.Shelly
    0.9 %
  • 8.M5Stack
    1 %
  • 8.Raspberry Pi
    1 %
  • 10.Seeed Studio
    1.1 %
Source: Digitec Galaxus