Search results for:

Great thanks for pointing me at the INA219/226 - I've ordered 2 x 226....

Also thanks for the comment about Arduino 5v shields. Noted.....

Oooooo brilliant thanks @parasquid.
I've got 15 resistors and created the 225 combinations to see what output voltage I can achieve (easy enough using a full outer join).
The best voltage was very low eg 2.3v, which felt too low. My assumption; at this stage; is the higher the voltage (below 3.3 of course) the better the data to understanding nuances of battery charge. I may just be over complicating things.

Now I know I can connect them in series I have loads more option.

Thanks for the link, I was using https://ohmslawcalculator.com/voltage-divider-calculator

Hi, I've got a Pixl.js in the post. I was to use it in my campervan. Initially I want to monitor voltage of my leisure battery but in time also monitor current being drawn. I want to use DroidScript so I can interact with the Pixl via my phone.

Looking through the videos
&v=epEGN-7GsPs I want to be able to turn devices on and off and off (maybe to conserve the battery). I've got 2 FET transistors on order.

I'm happy playing round with a bit of electronics but I guess my main interest is writing the code....

I've got a load of resistors from a play pack I got years ago and I've worked out that non of the combinations I have will divide the voltage from 14v (max voltage on charge apparently) to 3.3v so I can use the Pixl.js to monitor voltage.

So any thoughts on the following would be very much appreciated.

1. Has anyone come across / used any shields that may be useful for the voltage / current quandry?

2. What's the tolerance for reading voltage on the Pixl.js. Just for info as I guess should never go above 3.3?

3. Has anyone come across a small/cheap electronics starter pack that will contain enough toys to get something up and running.

It's a balance between getting something up and running and spending time on the electronics side of things (all to do with what floats your boat).

Thanks in advance.....

Thanks... I was wondering which 'side' the battery level would be reading if I connect to 12v leisure battery (ie unregulated).
That answers my question.

I'm going to build a simple campervan battery monitor when I receive my pixl.js.