Questions tagged [ina219]
A 26 V, 12-bit, zero drift, bidirectional current/voltage/power monitor integrated circuit with I2C output from Texas Instruments. Consider using this tag in conjunction with "integrated-circuit" and "i2c" if applicable.
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Connection with INA219 Current sensor
I want to measure the current at point A. This is a constant current circuit driving a laser. But to connect it with INA219, how can I connect it to my circuit?
Option 1: Do I need a shunt resistor in ...
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INA219 to measure battery voltage
I want to measure the voltage of batteries. I am using an INA219 powered by an Arduino MKRWAN 1300. I have connected the INA219 to the MKRWAN as seen in the image below:
However, I seem to have a ...
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Can I use an INA219 to measure the load while using a solar panel?
I am using a a solar panel connected to this solar power manager. On the output (5 V) I will connect a circuit with an Arduino, sensors, and an INA219 on a breakout board to measure the total load ...
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INA219 load voltage stuck at 1 V
I’m using an INA219 and I’m trying to take a reading of voltage and current. When I’m looking at the current reading, it looks perfectly fine, however, the load voltage remains the same and it is ...
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INA219- I2c bus weird behavior
I have a PCB assembly where I built the circuit in the schematic below. I did not start programming yet.
I'm getting the weirdest problem. When I check the voltages in the SDA and SCL lines (which ...
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No current changes using INA219 to reading industrial sensor
I intended to use the INA219 chip to read the 4-20 mA current loop of the industrial sensor for the automation project. the sensor voltage is 12 V, my first schematic was as follows:
The ground of ...
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Weird readings with INA219 Current/volt sensor, Arduino and big, fat scary Lipo
I have a strange situation with an I2C INA219 current/volt meter module (datasheet).
In front of me, I have a rather scary 16.8V lipo - its positive output is on the VIN+ of the INA219.
The VIN- leads ...
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How does the INA219 get 15 bits with a 12 bit ADC and no oversampling?
I'm working the INA219 and reading it's datasheet and I have a doubt. I'm working with 1 sample of 12 bits (no oversampling).
The shunt voltage register has 15 bits plus sign when the PGA is ...
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Current sensor problem
I'm using INA219 to read the hold system current like the schematic
The problem line in the DC-DC converter. When I use IC MP2315 DC-DC converter, INA219 seem like just read the off period of PWM ...
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Sensor output current vs voltage reading options for accuracy
I am trying to choose between two sensor output types.
Either 0-10V or 4-20mA.
I am using the INA219B to measure current right now but I am wondering if getting a different output sensor would be more ...
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PCB design for MAX31865+INA219
I'm designing a PCB for a device, which will contain the following functional blocks:
12V power input with SCR crowbar, reverse polarity protection, soft-start, and 3.3V linear regulator. Regulator ...
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INA219 current sensor allowing only 300mA of current between its VIN+ and VIN- terminals. Why?
I'm building an Arduino circuit to detect/limit the maximum charging current to a camera flash.
I decided to use an INA219 breakaout board, which comes with a R100 resistor as a shunt so it should ...
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INA219 Voltage measurements meaning
I have a battery holder, 3 x 1.5V AA, connected to a resistor (100 Ohm or close), LED and Adafruit INA219 breakout board.
The bus voltage reading from the INA219 reports 1.0V. Where does this number ...
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INA219 high current measurements for my autonomous boat?
I'm building an autonomous boat which will contain solar panels for its energy needs. The current prototype contains a 20W solar panel. All the electronics work great so it's time to scale up. The ...
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INA219 current sensor not working properly with DC motor
I use INA219 module to read DC motor current for control propose.
I connect INA219 in series with motor as shown in schematic.
simulate this circuit – Schematic created using CircuitLab
The ...
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