{"id":8532538327193,"title":"Adafruit INA219 DC Sensor Breakout, I2C, 26V ±3.2A Max (904)","handle":"adafruit-ina219-dc-sensor-breakout-i2c-26v-3-2a-max-904","description":"\u003ch3\u003eAdafruit INA219 DC Sensor Breakout, I2C, 26V ±3.2A Max (904)\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThis breakout board will solve all your power-monitoring problems. Instead of\nstruggling with two multimeters, you can just use the handy INA219B chip on\nthis breakout to both measure both the high side voltage and DC current draw\nover I2C with 1 precision. Most current-measuring devices such as our current\npanel meter are only good for low side measuring. That means that unless you\nwant to get a battery involved, you have to stick the measurement resistor\nbetween the target ground and true ground. This can cause problems with\ncircuits since electronics tend to not like it when the ground references\nchange and move with varying current draw. This chip is much smarter - it can\nhandle high side current measuring, up to +26VDC, even though it is powered\nwith 3 or 5V. It will also report back that high side voltage, which is great\nfor tracking battery life or solar panels. A precision amplifier measures the\nvoltage across the 0.1 ohm, 1 sense resistor. Since the amplifier maximum\ninput difference is 320mV this means it can measure up to 3.2 Amps. With the\ninternal 12 bit ADC, the resolution at 3.2A range is 0.8mA. With the internal\ngain set at the minimum of div8, the max current is 400mA and the resolution\nis 0.1mA. Advanced hackers can remove the 0.1 ohm current sense resistor and\nreplace it with their own to change the range (say a 0.01 ohm to measure up 32\nAmps with a resolution of 8mA) We include a 6-pin header (so you can easily\nattach this sensor to a breadboard) as well as a 3.5mm terminal plug so you\ncan easily attach and detach your load. Usage is simple. Power the sensor\nitself with 3 to 5VDC and connect the two I2C pins up to your microcontroller.\nThen connect your target power supply to VIN+ and the load to ground to VIN-.\nWe have an Arduino library right now that will do all the gain, range and math\nfor you - just plug and go! We'll have a more detailed tutorial up shortly.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHighest Quality Components\u003c\/li\u003e\n \u003cli\u003eOffiicial Adafruit Product\u003c\/li\u003e\n \u003cli\u003eShips from our UK warehouse\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2025-09-26T01:19:25+10:00","created_at":"2025-09-26T01:19:22+10:00","vendor":"Adafruit","type":"Current Sensors","tags":["industryDE_Sep2025"],"price":16900,"price_min":16900,"price_max":16900,"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":45746991956121,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"de-B00PKF0IAM","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Adafruit INA219 DC Sensor Breakout, I2C, 26V ±3.2A Max (904)","public_title":null,"options":["Default Title"],"price":16900,"weight":20,"compare_at_price":null,"inventory_management":"shopify","barcode":"711978441824","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/soundstores.net\/cdn\/shop\/files\/de-B00PKF0IAM.jpg?v=1775751694"],"featured_image":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00PKF0IAM.jpg?v=1775751694","options":["Title"],"media":[{"alt":null,"id":34642922340505,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00PKF0IAM.jpg?v=1775751694"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/soundstores.net\/cdn\/shop\/files\/de-B00PKF0IAM.jpg?v=1775751694","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eAdafruit INA219 DC Sensor Breakout, I2C, 26V ±3.2A Max (904)\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThis breakout board will solve all your power-monitoring problems. Instead of\nstruggling with two multimeters, you can just use the handy INA219B chip on\nthis breakout to both measure both the high side voltage and DC current draw\nover I2C with 1 precision. Most current-measuring devices such as our current\npanel meter are only good for low side measuring. That means that unless you\nwant to get a battery involved, you have to stick the measurement resistor\nbetween the target ground and true ground. This can cause problems with\ncircuits since electronics tend to not like it when the ground references\nchange and move with varying current draw. This chip is much smarter - it can\nhandle high side current measuring, up to +26VDC, even though it is powered\nwith 3 or 5V. It will also report back that high side voltage, which is great\nfor tracking battery life or solar panels. A precision amplifier measures the\nvoltage across the 0.1 ohm, 1 sense resistor. Since the amplifier maximum\ninput difference is 320mV this means it can measure up to 3.2 Amps. With the\ninternal 12 bit ADC, the resolution at 3.2A range is 0.8mA. With the internal\ngain set at the minimum of div8, the max current is 400mA and the resolution\nis 0.1mA. Advanced hackers can remove the 0.1 ohm current sense resistor and\nreplace it with their own to change the range (say a 0.01 ohm to measure up 32\nAmps with a resolution of 8mA) We include a 6-pin header (so you can easily\nattach this sensor to a breadboard) as well as a 3.5mm terminal plug so you\ncan easily attach and detach your load. Usage is simple. Power the sensor\nitself with 3 to 5VDC and connect the two I2C pins up to your microcontroller.\nThen connect your target power supply to VIN+ and the load to ground to VIN-.\nWe have an Arduino library right now that will do all the gain, range and math\nfor you - just plug and go! We'll have a more detailed tutorial up shortly.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHighest Quality Components\u003c\/li\u003e\n \u003cli\u003eOffiicial Adafruit Product\u003c\/li\u003e\n \u003cli\u003eShips from our UK warehouse\u003c\/li\u003e\n \u003c\/ul\u003e"}