{"product_id":"gravity-i2c-digital-wattmeter","title":"Gravity: I2C Digital Wattmeter","description":"\u003cdiv id=\"Introduction\" class=\"content Introduction\"\u003e\n\u003ch4\u003eIntroduction\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eGravity: I2C Digital Wattmeter is a high-resolution, high-precision, large-scale measurement module that can measure the voltage, current and power of various electronic modules and electrical equipment within 26V 8A, and the maximum relative error is no more than ±0.2% (A simple manual calibration is required before usage). It can be used for power consumption or battery life evaluation of\u003cspan\u003e \u003c\/span\u003esolar energy systems,\u003cspan\u003e \u003c\/span\u003ebattery,\u003cspan\u003e \u003c\/span\u003emotors,\u003cspan\u003e \u003c\/span\u003econtroller\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003eelectronic modules.\u003cbr\u003e \u003cbr\u003eThe module adopts TI INA219 zero temperature drift current\/power monitoring chip and 2W high power low temperature drift 10mΩ alloy sampling resistor. The voltage and current resolution can reach 4mV and 1mA respectively. Under the full scale measurement condition, the maximum relative error of voltage and current measurement can be superior to ±0.2%. It also provides four I2C addresses that can be configured via the 2P DIP switch. The module accurately measures bi-directional high-side currents (current flowing through the power supply or battery positive), which is especially useful in solar or battery fuel gauge applications where the battery needs to be charged and discharged. This status can be simply determined by positive or negative current readings. In the motor applications, the current can be monitored in real time by monitoring whether the motor current is too large due to overload. In addition, you can use this module to measure the power consumption of various electronic modules or the entire project to evaluate battery life.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cb\u003eConnection Diagram\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0291\/1_0x0.png.webp\" alt=\"Gravity: I2C Digital Wattmeter Connection Diagram (Arduino UNO)\" title=\"Gravity: I2C Digital Wattmeter\"\u003e\u003cbr\u003e\u003c\/p\u003e\nGravity: I2C Digital Wattmeter Connection Diagram (Arduino UNO)\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0291\/2_0x0.png.webp\" alt=\"Gravity: I2C Digital Wattmeter Connection Diagram (Raspberry Pi 3B)\" title=\"Gravity: I2C Digital Wattmeter\"\u003e\u003cbr\u003e\u003c\/p\u003e\nGravity: I2C Digital Wattmeter Connection Diagram (Raspberry Pi 3B)\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0291\/3_0x0.png.webp\" title=\"Gravity: I2C Digital Wattmeter\" alt=\"Measuring the power consumption of the Gravity: pH meter\"\u003e\u003cbr\u003e\u003c\/p\u003e\nMeasuring the power consumption of the\u003cspan\u003e \u003c\/span\u003eGravity: pH meter\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0291\/4_0x0.png.webp\" title=\"Gravity: I2C Digital Wattmeter\" alt=\"Monitor the power consumption of the solar panel, battery and outputs of a solar system\"\u003e\u003cbr\u003e\u003c\/p\u003e\nMonitor the power consumption of the\u003cspan\u003e \u003c\/span\u003esolar panel, battery and outputs of a solar system\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Features\" class=\"content Features\"\u003e\n\u003ch4\u003eFeatures:\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHigh precision, high resolution, large range, low temperature drift\u003c\/li\u003e\n\u003cli\u003eBidirectional current high side measurement\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.3V\/5V controller\u003c\/li\u003e\n\u003cli\u003eSophisticated and compact, easy to embed in the project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"Applications\" class=\"content Applications\"\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eSolar Power Management\u003c\/li\u003e\n\u003cli\u003eBattery Fuel Gauge\u003c\/li\u003e\n\u003cli\u003eElectronic Module Power Evaluation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Specification\" class=\"content Specification\"\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage (VCC) : 3.3V~5.5V\u003c\/li\u003e\n\u003cli\u003eVoltage Range (IN+ or IN- relative to GND): 0 ~ 26 V\u003c\/li\u003e\n\u003cli\u003eVoltage Resolution: 4 mV\u003c\/li\u003e\n\u003cli\u003eVoltage Relative Error: \u0026lt;±0.2% (Typical)\u003c\/li\u003e\n\u003cli\u003eCurrent Range: 0 ~ ±8A (Bidirectional current)\u003c\/li\u003e\n\u003cli\u003eCurrent Resolution: 1mA\u003c\/li\u003e\n\u003cli\u003eCurrent Relative Error: \u0026lt;±0.2% (Typical, manual calibration required)\u003c\/li\u003e\n\u003cli\u003ePower Range: 0 ~ 206 W\u003c\/li\u003e\n\u003cli\u003ePower Resolution: 20 mW (Hardware) \/ 4 mW (Software)\u003c\/li\u003e\n\u003cli\u003eQuiescent Current: 0.7 mA\u003c\/li\u003e\n\u003cli\u003eInterface: Gravity I2C (logic level: 0-3.3V)\u003c\/li\u003e\n\u003cli\u003eI2C Address: Four options 0x40, 0x41, 0x44, 0x45\u003c\/li\u003e\n\u003cli\u003eDimension: 30.0mm*22.0mm\/1.18*0.87 in\u003c\/li\u003e\n\u003cli\u003eWeight: 4g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Shipping-List\" class=\"content ShippingList\"\u003e\n\u003ch4\u003eShipping List\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: I2C Digital Wattmeter x1\u003c\/li\u003e\n\u003cli\u003eGravity-4P I2C\/UART Sensor Wire x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Documents\" class=\"content documents\"\u003e\n\u003ch4\u003eDocuments\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0291\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":41762421964933,"sku":"SN-000263-DFR","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0565\/5819\/0725\/files\/1_df9387a6-4a7c-410a-9d13-11e6d7ce4a28.png?v=1783936745","url":"https:\/\/robotpishop.com\/products\/gravity-i2c-digital-wattmeter","provider":"Robot Pi Shop","version":"1.0","type":"link"}