{"id":8115288932532,"title":"8pcs CJMCU-219 INA219 I2C Module, Bidirectional DC Current\/Power Monitoring Sensor Module for Arduino and Raspberry Pi","handle":"8pcs-cjmcu-219-ina219-i2c-module-bidirectional-dc-current-power-monitoring-sensor-module-for-arduino-and-raspberry-pi","description":"\u003ch3\u003e8pcs CJMCU-219 INA219 I2C Module, Bidirectional DC Current\/Power Monitoring Sensor Module for Arduino and Raspberry Pi\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eDescription: The CJMCU-219 INA219 I2C module is a high-precision bi-\ndirectional current measuring module based on the INA219 chip and suitable for\nvarious development platforms such as Arduino, Raspberry Pi and ESP32. The\nmodule measures voltage, current and power in real time and is ideal for\nenergy management, monitoring lithium batteries, solar projects and electronic\nexperimental applications. The CJMCU-219 INA219 I2C module uses a standard I2C\ncommunication interface. For data transmission, only the two signal lines SDA\nand SCL must be connected, effectively saving IO resources of the motherboard.\nThe INA219 chip has high precision ADC, measures bi-directional currents and\nsupports positive and negative direction detection. Therefore, it is\nparticularly suitable for battery charging and discharge systems as well as\nenergy monitoring projects. The CJMCU-219 INA219 I2C module works stably and\nresponds quickly and is suitable for various DIY electronics projects and\nembedded development projects. Whether for power consumption analysis, real-\ntime power monitoring or intelligent power management, the INA219 module\ndelivers reliable data. Parameters: Operating voltage: 3 ~ 5 V. Maximum offset\ndeviation: 100µV Temperature range: -40°C to +85°C. Housing: SOT23.\nSpecifications: Dimensions: 25.5 x 22.3 mm. Package includes: 8 x CJMCU-219\nINA219 I2C Module\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHigh precision measurement: The CJMCU-219 INA219 I2C module uses the INA219 chip and allows real-time measurement of current, voltage and power. It is suitable for power supply monitoring and battery management projects. The operating voltage is between 3 and 5 V, the maximum deviation is 100 V.\u003c\/li\u003e\n \u003cli\u003eI2C communication interface: Thanks to the standard I2C interface, stable data transmission is possible with just a few I\/O pins, which makes it easier to connect to development boards such as Arduino, ESP32 and Raspberry Pi.\u003c\/li\u003e\n \u003cli\u003eSupports bi-directional current measurement: The CJMCU-219 INA219 I2C module supports monitoring of positive and negative current and is suitable for charging and discharging systems, battery tests and solar projects.\u003c\/li\u003e\n \u003cli\u003eWide range of applications: suitable for electronics experiments, IoT projects, power supply management, power monitoring as well as learning embedded development.\u003c\/li\u003e\n \u003cli\u003eCompact and easy to install: The CJMCU-219 INA219 I2C module is compact and has a standard pin header, which facilitates wiring and integration into various electronics projects.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-09-02T11:12:17+10:00","created_at":"2026-09-01T23:49:38+10:00","vendor":"AYWHP","type":"Current Sensors","tags":["industrial_DE_Aug2026"],"price":11300,"price_min":11300,"price_max":11300,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44375009394868,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"de-B0H3V4VDCW","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"8pcs CJMCU-219 INA219 I2C Module, Bidirectional DC Current\/Power Monitoring Sensor Module for Arduino and Raspberry Pi","public_title":null,"options":["Default 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CJMCU-219 INA219 I2C Module, Bidirectional DC Current\/Power Monitoring Sensor Module for Arduino and Raspberry Pi\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eDescription: The CJMCU-219 INA219 I2C module is a high-precision bi-\ndirectional current measuring module based on the INA219 chip and suitable for\nvarious development platforms such as Arduino, Raspberry Pi and ESP32. The\nmodule measures voltage, current and power in real time and is ideal for\nenergy management, monitoring lithium batteries, solar projects and electronic\nexperimental applications. The CJMCU-219 INA219 I2C module uses a standard I2C\ncommunication interface. For data transmission, only the two signal lines SDA\nand SCL must be connected, effectively saving IO resources of the motherboard.\nThe INA219 chip has high precision ADC, measures bi-directional currents and\nsupports positive and negative direction detection. Therefore, it is\nparticularly suitable for battery charging and discharge systems as well as\nenergy monitoring projects. The CJMCU-219 INA219 I2C module works stably and\nresponds quickly and is suitable for various DIY electronics projects and\nembedded development projects. Whether for power consumption analysis, real-\ntime power monitoring or intelligent power management, the INA219 module\ndelivers reliable data. Parameters: Operating voltage: 3 ~ 5 V. Maximum offset\ndeviation: 100µV Temperature range: -40°C to +85°C. Housing: SOT23.\nSpecifications: Dimensions: 25.5 x 22.3 mm. Package includes: 8 x CJMCU-219\nINA219 I2C Module\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHigh precision measurement: The CJMCU-219 INA219 I2C module uses the INA219 chip and allows real-time measurement of current, voltage and power. It is suitable for power supply monitoring and battery management projects. The operating voltage is between 3 and 5 V, the maximum deviation is 100 V.\u003c\/li\u003e\n \u003cli\u003eI2C communication interface: Thanks to the standard I2C interface, stable data transmission is possible with just a few I\/O pins, which makes it easier to connect to development boards such as Arduino, ESP32 and Raspberry Pi.\u003c\/li\u003e\n \u003cli\u003eSupports bi-directional current measurement: The CJMCU-219 INA219 I2C module supports monitoring of positive and negative current and is suitable for charging and discharging systems, battery tests and solar projects.\u003c\/li\u003e\n \u003cli\u003eWide range of applications: suitable for electronics experiments, IoT projects, power supply management, power monitoring as well as learning embedded development.\u003c\/li\u003e\n \u003cli\u003eCompact and easy to install: The CJMCU-219 INA219 I2C module is compact and has a standard pin header, which facilitates wiring and integration into various electronics projects.\u003c\/li\u003e\n \u003c\/ul\u003e"}