INA219 Sensor wrong data display

[Rihab]

Hello Community,

I'm using the current sensor INA219 with NRF5340dk.
Communication is through i²c protocol and using nrf SDK v1.7.0 .
I'm trying to get the data output (Voltage, Current, Power).
i worked on the sample linked on Zephyr Lib. the problem is that i'm always getting the same output which i liked below

the wiring of the sensor is like below :

Vin->VDD nrf
GND->GND
SCL->P0.26
SDA->P0.25

I'm always getting the current and power to Null values and both voltage values don't change no matter what !
do i need to change the calibration values or do i need to do something else ?
i don't get what's wrong with the data output so i need your help please
can you help me get the right values and get the data displayed out from the sensor correctly, please

Kindly,
Many thanks
 

[Øivind]

The link I sent explains how to set up PuTTY.

Set up the settings for Serial connections:

Set up the settings for the terminal:

Then select Serial for the session, and save your settings, then open the terminal:

[Rihab]

Hello Øivind
I managed to get output on the SES terminal 
and it says that the device is not ready 

i will put also my overlay file below 

&i2c1 {
	status = "okay";
	sda-pin = < 34 >;
	scl-pin = < 35 >;
    clock-frequency = <100000>; 
	
	ina219: ina219@40 {
        status = "okay";
		compatible = "ti,ina219";
		reg = <0x40>;
		label = "INA219";
		brng = <0>;
		pg = <0>;
		sadc = <13>;
		badc = <13>;
		shunt-milliohm = <100>;
		lsb-microamp = <10>;
	};
};

&uart1 {
    status = "disabled";
};

is it an I²C problem like in V1.7.0 
the user needs to change I²C to make it work ? or what may be causing this problem ? 
can you help me find out please ?

[Rihab]

Hello Again 
I finally managed to get an output through the INA219 sensor 
and i got it on the terminal of SES 
i came back to my initial problem 
the main problem for which i created the ticket 
the sensor is indicating mostly strange values and it's frequently repetitive
i will put you a screenshot below 
i just want to fix this problem to get reasonable values 
but i don't know what to try exactly to make it get the right values 
can you help please with it 

[Øivind]

Try connecting the sensor to VDD, and not VDD_nrf. You can find VDD next to the power switch.