{"product_id":"m5stack-voltage-and-amperage-meter-with-m5stamps3","title":"M5Stack Voltage and Amperage Meter with M5StampS3","description":"\u003cp\u003e\u003cvideo id=\"video\" playsinline=\"\" muted=\"\" loop=\"loop\" controls=\"controls\" class=\"video-container\" width=\"100%\" style=\"border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.08);\"\u003e\n  \u003csource type=\"video\/mp4\" src=\"https:\/\/m5stack.oss-cn-shenzhen.aliyuncs.com\/resource\/docs\/products\/core\/VA%20Meter\/K136%20VA%20Meter%20%E8%A7%86%E9%A2%91.mp4\"\u003e\u003c\/video\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n\/* ===== Scoped Description Style ===== *\/\n.product-description.rte {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif;\n  color: #2c2c2c;\n  line-height: 1.65;\n  font-size: 16px;\n}\n\n\/* ===== Headings ===== *\/\n.product-description.rte h2 {\n  font-size: 1.8em;\n  color: #0D47A1;\n  border-left: 4px solid #1f6fe5;\n  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#learn-and-documents-btn {\n    font-size: 14px;\n    padding: 8px 16px;\n  }\n}\n\u003c\/style\u003e\n\u003ch2 data-id=\"Description\" id=\"description\"\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eVAMeter\u003c\/strong\u003e is a professional, programmable, high-precision power meter designed for accurate voltage and current measurements. Powered by the \u003cstrong\u003eStamp-S3\u003c\/strong\u003e module, it features Wi-Fi connectivity and two cascaded \u003cstrong\u003eINA226\u003c\/strong\u003e current\/voltage sensing circuits, delivering current detection resolutions of 2.5 µA and 250 µA. The measurement range supports 0-5 A and 5-24 V (1-24 V in isolation mode).\u003c\/p\u003e\n\u003cp\u003eThe device offers flexible power-supply options through the USB-C port or the Base terminal, with built-in power and signal isolation. A slide switch lets users choose between isolated measurements powered via USB and non-isolated measurements powered directly from the test source, meeting various application needs.\u003c\/p\u003e\n\u003cp\u003eThe included expansion BASE provides relay on\/off control and a Grove port for secondary development. Additional features include OTA firmware upgrades and USB MSC\/OTG support, allowing users to view and edit data and configuration files stored in the main controller’s file system from a PC.\u003c\/p\u003e\n\u003cp\u003eM5Stack also supplies a free online data API for uploading test data to the \u003cstrong\u003eEZData\u003c\/strong\u003e platform, enabling remote access and visualization and greatly simplifying IoT application development.\u003c\/p\u003e\n\u003cp\u003eVAMeter is a highly practical and developer-friendly instrument, ideal for projects requiring precise current and voltage measurements, as well as for industrial automation, equipment monitoring, smart grid, and related fields.\u003c\/p\u003e\n\u003ch2 data-id=\"Features\" id=\"features\"\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-precision current detection (2.5 µA \/ 250 µA resolution switching)\u003c\/li\u003e\n\u003cli\u003eWide voltage input (5-24 V)\u003c\/li\u003e\n\u003cli\u003eCloud data display via EZData\u003c\/li\u003e\n\u003cli\u003ePD input (no PD trigger built in)\u003c\/li\u003e\n\u003cli\u003eMultiple power-supply methods (PD INPUT \/ Stamp-S3 \/ external terminal block)\u003c\/li\u003e\n\u003cli\u003ePower and signal isolation\u003c\/li\u003e\n\u003cli\u003eUSB MSC\/OTG support\u003c\/li\u003e\n\u003cli\u003eOpen-source hardware \u0026amp; software\u003c\/li\u003e\n\u003cli\u003eWireless OTA upgrade\u003c\/li\u003e\n\u003cli\u003eDevelopment Platform\n\u003cul\u003e\n\u003cli\u003eUiFlow2\u003c\/li\u003e\n\u003cli\u003eArduino IDE\u003c\/li\u003e\n\u003cli\u003eESP-IDF\u003c\/li\u003e\n\u003cli\u003ePlatformIO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Includes\" id=\"includes\"\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x VAMeter\u003c\/li\u003e\n\u003cli\u003e1 x VAMeter Base\u003c\/li\u003e\n\u003cli\u003e2 x 3.81-2P Terminal Block\u003c\/li\u003e\n\u003cli\u003e4 x Hanger (Small)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Applications\" id=\"applications\"\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial automation\u003c\/li\u003e\n\u003cli\u003eEquipment monitoring\u003c\/li\u003e\n\u003cli\u003ePower testing \u0026amp; analysis\u003c\/li\u003e\n\u003cli\u003eIoT devices\u003c\/li\u003e\n\u003cli\u003eRemote monitoring \u0026amp; data acquisition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Specifications\" id=\"specifications\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoC\u003c\/td\u003e\n\u003ctd\u003eESP32S3FN8@Xtensa 32-bit LX7 dual-core processor, main frequency 240MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Detection Chip\u003c\/td\u003e\n\u003ctd\u003eINA226\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash\u003c\/td\u003e\n\u003ctd\u003e8MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINA226 Communication Address\u003c\/td\u003e\n\u003ctd\u003eDual detection chips INA226: 0x40 \/ 0x41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e1.3 inch @ 240 × 240 pixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Driver\u003c\/td\u003e\n\u003ctd\u003eST7789\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePD Input Power\u003c\/td\u003e\n\u003ctd\u003e5-24 V @ 0-5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Resolution\u003c\/td\u003e\n\u003ctd\u003e2.5 µA \/ 250 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Sampling Err\u003c\/td\u003e\n\u003ctd\u003eSmall current (1-100 mA): 1.01 %\u003cbr\u003eLarge current (100 mA-5 A): 0.94 %\u003cbr\u003eµA-level current: 0.69 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Error\u003c\/td\u003e\n\u003ctd\u003eMeasurement error: 0.11 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStamp-S3 USB powered: DC 5 V \/ 123.5 mA\u003cbr\u003ePD INPUT: DC 5 V \/ 118 mA\u003cbr\u003eDC 12 V \/ 66.8 mA\u003cbr\u003eDC 24 V \/ 26 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePD OUTPUT Capability\u003c\/td\u003e\n\u003ctd\u003eDC 24 V @ 3 A 68 ℃\u003cbr\u003eDC 24 V @ 5 A 92 ℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Interface\u003c\/td\u003e\n\u003ctd\u003eRotary encoder switch, Reset button, Boot button, onboard buzzer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay\u003c\/td\u003e\n\u003ctd\u003eDC 5 - 24 V @ 5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp.\u003c\/td\u003e\n\u003ctd\u003e0 - 40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Size\u003c\/td\u003e\n\u003ctd\u003e51.5 × 48.0 × 40.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e43.4 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e160.9 × 93.0 × 31.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e68.4 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eLearn and Documents\u003c\/h2\u003e\n → DOCUMENTS \n\u003c\/div\u003e","brand":"m5stack-store","offers":[{"title":"Default Title","offer_id":46036119486524,"sku":"edb1787247200633","price":19.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6985\/2220\/files\/m5stack-voltage-and-amperage-meter-with-m5stamps3_1.webp?v=1787247208","url":"https:\/\/luxecladstore.shop\/products\/m5stack-voltage-and-amperage-meter-with-m5stamps3","provider":"My Store","version":"1.0","type":"link"}