{"title":"Adafruit INA219 FeatherWing","handle":"adafruit-ina219-featherwing","url":"/products/adafruit-ina219-featherwing","description":"The Adafruit INA219 FeatherWing is a high-side current and voltage sensor that stacks onto any Feather development board. Using the INA219B chip over I2C, it measures both DC current draw and bus voltage with 1% precision — replacing the need for two separate multimeters in your power-monitoring setup.\n\nUnlike low-side current sensors that disrupt ground references, the INA219 measures on the high side and handles up to +26V DC, even when powered from the Feather's 3.3V rail. It's ideal for monitoring battery life, solar panel output, or any DC power system.\n\nKey Features\n\n\nHigh-Side Current Sensing – Measures current without disrupting ground references, up to +26V DC\n\n±3.2A Measurement Range – 0.1Ω 1% sense resistor with 0.8 mA resolution at full range\n\n±400 mA Low-Range Mode – Internal gain set to ÷8 for 0.1 mA resolution\n\nVoltage Monitoring – Reports high-side bus voltage for battery and solar tracking\n\nI2C Interface – Simple two-wire connection; configurable address supports up to 4 Wings per Feather\n\n12-bit ADC – Onboard analogue-to-digital converter for precise measurements\n\nFeather Form Factor – Stacks directly onto any Feather board\n\nCustomisable Range – Replace the 0.1Ω sense resistor with your own (e.g., 0.01Ω for up to ±32A at 8 mA resolution)\n\n\nIdeal For\n\nBattery life monitoring and power profiling\nSolar panel current and voltage tracking\nEmbedded system power consumption analysis\nAny Feather project requiring precision DC power measurement\n\n\nPackage Contents\n\n1× Adafruit INA219 FeatherWing\n\n\nResources\n\nAdafruit INA219 Current Sensor Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":6726,"title":"Default Title","sku":"AF-3650","price":15.5,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}