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Old 01-16-2018, 04:03 PM   #1
felix_fetche
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Default Battery Check and Capacity Measurement Tool by i2c network

Here it is my work,
Is in construction, in update and upgrade everyday from now on!
Be back with new videos after each major upgrade.
Here is link: https://youtu.be/z-MtyuN-iw4
Be free to comment if I catch your interst.
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Old 01-17-2018, 10:30 AM   #2
dmurphy
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Quote:
Originally Posted by felix_fetche View Post
Here it is my work,
Is in construction, in update and upgrade everyday from now on!
Be back with new videos after each major upgrade.
Here is link: https://youtu.be/z-MtyuN-iw4
Be free to comment if I catch your interst.
Very cool!! This is Arduino based I assume yes? Is this something youíre planning to release as plans, or a product, or just a hobby?

And may I ask what some of the values are? Specifically SOC%?

I would love the ability to check a battery and estimate itís useful life remaining based on charging capacity vs new... that would be quite useful
When looking at used units/batteries/etc.
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Old 01-20-2018, 10:36 AM   #3
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Default

SOC is state of charge, from 0% to 100%, this value is calculated by the BCM, my tool is only read, scale and display this value. All the values are provided from BCM aquisition interface, values are filtered and then stored into intenal registers readable via i square c network. Also U and I aquisition is doubled by analog inputs of the arduino board, values used on revive process, when i2c network not available during low voltage of batt and BCM not feeded.

The tool i developed mainly for my needs.
First i studied to by one from Germany, but was pretty expensive, then I start
to do reverse engineering by scanning all the addresses and sub-addresses of
the address 98 of the i2c network alocated to BCM.
Just scan, and whatís returning with ack are available registers, and skip ones with nack.
Identifying the registers wasnít that hard.
Basically after a small research based on what i write upwords, anyone can do
such a project.

I think could make a cheap tool, with a arduino uno and a tft, to obtain
a small tool for quick test without revive/discharge options, with internal batts to work even on field where no power supply available.

Wishing a nice weekend to all m8ís!
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Old 02-09-2018, 03:09 AM   #4
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New improvements:

https://youtu.be/M3Viipy0qcU

https://youtu.be/1XN_WYGmByw
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Old 02-09-2018, 10:47 AM   #5
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Great work as always...😂
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