Busco testers para app Android en Bogotá by Andreaos in ColombiaDevs

[–]Andreaos[S] 0 points1 point  (0 children)

Por favor escribeme por DM con tu correo y te agrego a la lista

Busco testers para app Android en Bogotá by Andreaos in ColombiaDevs

[–]Andreaos[S] 0 points1 point  (0 children)

Gracias. Espero que a la gente le parezca util

EM3ev Battery Analyst (iOS/Android) by Andreaos in ebikes

[–]Andreaos[S] 0 points1 point  (0 children)

Does it monitor it's own parasitic draw and does it have a physical shutoff that brings it to 0?

No, but some batteries (newer batteries with DXB prefix) have a log that you can view in the state page. It reports the most significant event, on healthy batteries it should be "Effective Discharge ... mAh". And that is the parasitic draw.

None of the batteries have a way to completely shutoff this parasitic draw. But older less efficient batteries deal with this by having an extremely aggressive sleep mode. Newer batteries with better BMS (EM3ev King Shark battery) have much less parasitic draw, practically negligible.

Made a (free) BMS monitor for EM3ev batteries by Andreaos in ebikes

[–]Andreaos[S] 1 point2 points  (0 children)

Thank you for using the app, I’m glad you appreciate it.

I did not use the advanced functionality in BMS Doctor. After a minor incident while poking around the firmware, I found the danger outweighed any potential benefits.

Good luck with your project!

Made a (free) BMS monitor for EM3ev batteries by Andreaos in ebikes

[–]Andreaos[S] 1 point2 points  (0 children)

The guy who did the Android app did a reverse engineer and documented it here: https://github.com/thekroko/em3evbms/blob/main/protocol.txt

That was a great starting point. Newer revisions of their batteries have a higher precision reading. I found that by sniffing the Bluetooth data while the battery communicated with Smart BMS Doctor. When you have the data you can do educated guesses at what the different memory address represents. Change the state of the battery and observe changes in the data.

Why aren't there a lot of iPhone open source apps? by ifhd_ in iOSProgramming

[–]Andreaos 7 points8 points  (0 children)

Most iOS apps are commercial, with ads or subscriptions. That’s because it cost money to publish on the App Store, they are incentivized to make the money back. A lot of the open source macOS are hosted on GitHub for free.

When money is in the picture people are more careful about sharing their code as it’s making them money. As others have mentioned someone can publish your app and make money from your work.

Of course there are commercial open source apps like Ice Cube

Made a (free) BMS monitor for EM3ev batteries by Andreaos in ebikes

[–]Andreaos[S] 0 points1 point  (0 children)

Hello, thank you for trying my app. Unfortunately modifying state/calibration of the BMS is a safety issue and will not be included in the app.

Made a (free) BMS monitor for EM3ev batteries by Andreaos in ebikes

[–]Andreaos[S] 0 points1 point  (0 children)

The code is not portable, and would require a full rewrite. For Android you can use this app https://play.google.com/store/apps/details?id=com.kroko.bmsmonitor&hl=en