INA219 - And Why Libraries And Examples Can Be Confusing

[@markhall3323]

The resistor on the board “R100” is 0.1 ohms. If you remove it and replace it with a different value you can change the current measuring range of the board. The accuracy of the current measurement depends on knowing the exact value of the shunt resistor - although it’s marked 0.1 ohms its value is probably a little different. A good library will allow you to specify the exact shunt resistance or you can make a manual correction yourself in the code.

[@patrickmclaughlin6013]

R100 is that 0.1 ohm ? looks like a shunt

[@SimpleElectronics]

It is indeed a 100mOhm shunt

[@aiboffin295]

I’m enjoying your I2C vids at the moment.

[@SimpleElectronics]

Thank you sir

[@JonnyBergdahl]

Hi from a code monkey! Nice to see you are making progress coding.

[@fredflintstone1]

nice video, very helpful with your explaination of the coding I like you can get confused with code:-)

[@smileyzhao2897]

hi can u help me do a video review for 2021 new upgraded digital multimeter ,it is multi functional and like a cellphone,we can offer u a free product from factory. tks

[@SimpleElectronics]

Email me on my business email (found in the "about" section of my KZbin channel, and we can talk about it

[@360Sebastian360]

Will it be able to pickup a current as small as 0.1 mA ? I don't need it to be accurate, just to display some steady value.

[@SimpleElectronics]

It would yeah

[@SteveRaynerMakes]

very nice. thanks