M5Stack K136 Voltage & Amperage Meter

M5Stack K136 Voltage and Amperage Meter is a programmable, high-precision power meter designed for accurate voltage and current measurements. The M5Stack K136 uses the M5StampS3 main control module and supports Wi-Fi connectivity. The meter features two serially connected INA226 circuits for current and voltage measurements, offering resolutions of 2.5µA and 250µA, and can measure current and voltage ranges of 0A to 5A and 5V to 24V (1V to 24V in isolation mode). The meter can be powered through a USB-C™ interface or a Base terminal input and includes built-in power and signal isolation. Choose between isolated measurement via USB power or non-isolated measurement using direct power, selectable by a toggle switch, to suit different applications. The expansion BASE also includes relay on/off control and a Grove port for additional development.