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VA Meter - voltage and amperage measurement module with M5StampS3 - M5Stack K136
VA Meter by M5Stack is a professional programmable module for precise voltage and current measurement . Based on M5StampS3 , it offers WiFi connectivity and uses two series-connected INA226 devices. It provides a current measurement resolution of 2.5 µA and 250 µA and a measurement range from 0 A to 5 A and from 5 V to 24 V. The module is powered by USB Type-C, has OTA, USB MSC/OTG and access to the EZData cloud platform. Ideal for automation, monitoring and IoT projects.
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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.
Botland is an official distributor of the M5Stack module family in Poland. We have extended this system of stackable functional devices with accessories from our range and numerous blog guides. All M5Stack products presented here are original.
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
Useful links
| Name | Value |
|---|---|
| UC - Microcontroller | ESP32-S3 |
| UC - Core | Tensilica Xtensa LX7 |
| UC - Flash | 8 MB |
| UC - freq | 240 MHz |
| UC - WiFi | yes |
| Meter - DC voltage | yes |
| Meter - DC current | yes |
| Width | 9.5 cm |
| Height | 16.2 cm |
| Depth | 3.5 cm |
| Weight | 0.07 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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