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Product description: VA Meter - voltage and current measurement module with M5StampS3 - M5Stack K136
The M5Stack VA Meter is a precise, programmable DC voltage and current meter based on the M5StampS3 module with WiFi connectivity. Equipped with two INA226 measurement chips, it offers resolutions of 2.5 µA and 250 µA and a measurement range of 0 A to 5 A and 5 V to 24 V (or 1 V to 24 V in isolated mode). The device can be powered via USB Type-C or a terminal input with built-in power and signal isolation. Additionally, the VA Meter Base has relay control functions and a Grove port for further development. It supports OTA, MSC/OTG updates over USB and data transfer to the EZData platform, which greatly facilitates the development of IoT applications.
The manufacturer has prepared a detailed user guide and tutorial that will help you get started with the module - check it out!
VA Meter - voltage and current measurement module with M5StampS3 - M5Stack K136.
VA Meter is based on the M5StampS3 development module.Main Features of VA Meter
- High measurement precision: current detection resolution of 2.5 µA and 250 µA ensures accuracy even at low currents
- Measurement range: current 0 A to 5 A, voltage 5 V to 24 V (1 V to 24 V in isolated mode)
- M5StampS3 module with WiFi: facilitates wireless communication and integration with IoT projects
- Two INA226 measurement systems: allow for precise, independent voltage and current measurements
- Signal and power isolation features: separate measurement and power paths for safe measurements
- OTA update: allows you to remotely update your software via WiFi
- USB MSC/OTG: provides access to measurement files via computer as a mass storage device
- EZData cloud platform: enables data transfer to the cloud and remote access to results
Applications voltage and current measurement module
VA Meter M5Stack finds application in various areas of engineering and industry , such as industrial automation, equipment monitoring, power testing, IoT network analysis, home energy management, as well as remote data collection and analysis.
EasyLoader compatible
EasyLoader is a tool that allows you to quickly and easily load software onto your VA Meter . It contains built-in test programs that can be loaded in simple steps to instantly verify the device's functions.
The module is suitable for measuring energy consumption by various devices.
Supports measurement range from 0 A to 5 A and 5 V to 24 V.
M5Stack VA Meter Technical Specification
- Measuring system: INA226
- Processor: ESP32S3FN8, 32-bit, up to 240 MHz
- Memory: 8MB Flash
- Connectivity: WiFi 802.11 b/g/n (2.4 GHz)
- Display: 1.3'', 240 x 240 px, ST7789 controller
- Current measurement range: 0 A to 5 A, resolution 2.5 µA / 250 µA
- Voltage measurement range: 5 V to 24 V
- Current measurement error: small current - 1.01%, large current - 0.94%, µA current - 0.69%
- Power supply: USB Type-C, PD 5V to 24V, terminal input
- Maximum Output Power (PD): 24VDC/3A @68°C, 24VDC/5A @92°C
- Relay: 5V to 24V DC, 5A
- Operating temperature: 0°C to 40°C
- Dimensions VA Meter: 36 x 36 x 14.7 mm
- Dimensions VA Meter Base: 36 x 36 x 20.3 mm
- Weight VA Meter: 17.7 g
- VA Meter Base Weight: 25.8 g
Kit Contents
- 1x VA Meter
- 1x VA Meter Base
- 2x Connector 2-pin pitch 3.81
- 4x Mounting hangers
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