{"product_id":"mateksys-12c-ina-bm-ultra-precise-12c-power-monitor","title":"MATEKSYS I2C-INA-BM Ultra Precise I2C Power Monitor Board (TI INA228, 0-85V, 0-204.8A)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe MATEKSYS I2C-INA-BM is an ultra-precise digital \u003cstrong\u003epower monitor\u003c\/strong\u003e board based on the TI INA228 IC. It monitors battery (bus) voltage and current via the I2C interface, with a 200 uOhm typical conductive path resistance for low power loss. It supports up to 3 boards on one I2C bus in parallel and is designed for use with ArduPilot firmware (no calibration required).\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBased on TI INA228 (85-V, 20-bit, ultra-precise power monitor IC) with I2C interface\u003c\/li\u003e\n\u003cli\u003eBattery voltage sense input: 0~85V\u003c\/li\u003e\n\u003cli\u003eCurrent sense range: 0~204.8A (150A continuous, 204.8A burst)\u003c\/li\u003e\n\u003cli\u003eVoltage accuracy: ±0.1%; current accuracy: ±2%\u003c\/li\u003e\n\u003cli\u003eSupports 3x boards on one I2C bus in parallel (I2C address options shown on board: default 69, options 68 and 65)\u003c\/li\u003e\n\u003cli\u003eCompact size: 27mm x 20mm x 6mm; weight: 4g; mounting hole: phi 3mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eI2C-INA-BM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIC\u003c\/td\u003e\n\u003ctd\u003eTI INA228 (85-V, 20-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI2C address\u003c\/td\u003e\n\u003ctd\u003eDefault 69; options 68, 65 (as marked on board)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery voltage sense input\u003c\/td\u003e\n\u003ctd\u003e0~85V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent sense range\u003c\/td\u003e\n\u003ctd\u003e0~204.8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad current on sensing resistor\u003c\/td\u003e\n\u003ctd\u003e150A (Continuous), 204.8A (Burst)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent accuracy\u003c\/td\u003e\n\u003ctd\u003e±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductive path resistance\u003c\/td\u003e\n\u003ctd\u003e200 uOhm (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard power supply\u003c\/td\u003e\n\u003ctd\u003e4~9V @ 5V pad\/pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003e1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator\u003c\/td\u003e\n\u003ctd\u003eLED Red, 3.3V indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperatures\u003c\/td\u003e\n\u003ctd\u003e-40~125 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard size\u003c\/td\u003e\n\u003ctd\u003e27mm x 20mm x 6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting hole\u003c\/td\u003e\n\u003ctd\u003ephi 3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector marking (as shown)\u003c\/td\u003e\n\u003ctd\u003eJST-GH-4P; pins labeled 5V \/ SCL \/ SDA \/ G (order depends on side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eConfiguration (ArduPilot)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBATT*_MONITOR -\u0026gt; 21 (INA2XX)\u003c\/li\u003e\n\u003cli\u003eBATT*_I2C_ADDR -\u0026gt; 0 (or 69, 68, 65)\u003c\/li\u003e\n\u003cli\u003eBATT*_I2C_BUS -\u0026gt; 0\/1\/2 (depends on the FC I2C bus connected)\u003c\/li\u003e\n\u003cli\u003eBATT*_SHUNT -\u0026gt; 0.0002\u003c\/li\u003e\n\u003cli\u003eBATT*_MAX_AMPS -\u0026gt; 204.8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMultiple-board setup example (as shown): BATT1_I2C_ADDR -\u0026gt; 69; BATT2_I2C_ADDR -\u0026gt; 68; BATT3_I2C_ADDR -\u0026gt; 65.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBattery voltage and current monitoring for RC planes, drones, and other battery-powered devices\u003c\/li\u003e\n\u003cli\u003eSingle-battery systems (common ground between controller and ESC\/load)\u003c\/li\u003e\n\u003cli\u003eTwo-battery systems (add a ground wire between I2C-INA-BM and BATT-1, as shown)\u003c\/li\u003e\n\u003cli\u003eMulti-sensor I2C installations (up to 3 boards in parallel)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1x I2C-INA-BM board\u003c\/li\u003e\n\u003cli\u003e1x JST-GH-4P to JST-GH-4P 20cm silicon wire\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote (as shown): silicon wires and XT60 connectors are not included in package.\u003c\/p\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThe big pad on the bottom side is a dead pad (no circuit network).\u003c\/li\u003e\n\u003cli\u003eSolder the positive wires as close as possible to both sides of the current sensing resistor.\u003c\/li\u003e\n\u003cli\u003eCompatible with ArduPilot firmware only now.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCustomer service: support@rcdrone.top or https:\/\/rcdrone.top\/\u003c\/p\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e3D file: \u003ca href=\"https:\/\/www.mateksys.com\/Downloads\/other\/I2C-INA-BM_step.zip\" rel=\"noopener\" target=\"_blank\"\u003eI2C-INA-BM_STEP.zip\u003c\/a\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eDetails\u003c\/h2\u003e\u003cimg alt=\"MATEKSYS I2C-INA-BM I2C power monitor board with FL200 shunt, JST-GH 4-pin ports, 27×20mm\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/MATEKSYS-I2C-INA-BM-Ultra-Precise-I2C-Power-Monitor-Board_84558d1d-3a21-4f00-8962-a86521f1157a.webp?v=1768874808\"\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/rcdrone.top\/collections\/matek\" title=\"MatekSys\"\u003eMATEKSYS\u003c\/a\u003e I2C-INA-BM power monitor uses JST-GH 4-pin I2C connectors and onboard pads for selecting the I2C address (default 69\/68\/65).\u003c\/p\u003e\u003cimg alt=\"MATEKSYS I2C power monitor board inline between battery and ESC with I2C pads and XT60 lead example\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/MATEKSYS-I2C-INA-BM-Ultra-Precise-I2C-Power-Monitor-Board_15548041-fafd-44b5-99c5-9d369bc7b0b9.webp?v=1768874829\"\u003e\u003cp\u003eThe I2C power monitor board installs inline between BAT+ and ESC+ and provides 5V, GND, SDA, SCL and ADDR pads for easy flight-controller wiring (silicone wires and XT60 connectors not included).\u003c\/p\u003e\u003cimg alt=\"MATEKSYS I2C-INA-BM power monitor board wiring diagram showing SDA\/SCL\/5V connections and I2C address options\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/MATEKSYS-I2C-INA-BM-Ultra-Precise-I2C-Power-Monitor-Board_bbc2fa80-c779-4172-8ad5-ce02b4c90839.webp?v=1768874850\"\u003e\u003cp\u003eThe I2C-INA-BM connects to a flight controller via 5V, SDA, and SCL, with selectable I2C addresses (69\/68\/65) for multi-sensor setups.\u003c\/p\u003e","brand":"MATEKSYS","offers":[{"title":"Default Title","offer_id":48568203706592,"sku":"12C-INA-BM","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/MATEKSYS-I2C-INA-BM-Ultra-Precise-I2C-Power-Monitor-Board.webp?v=1768874723","url":"https:\/\/rcdrone.top\/products\/mateksys-12c-ina-bm-ultra-precise-12c-power-monitor","provider":"RCDrone","version":"1.0","type":"link"}