large battery capacity

Question

large battery capacity

umeloman opened this issue 3 years ago · 12 comments

Hello! Recently I've got new issue, I think it's in OSD. On large drone battery capacity became to negative digit after 32750mAh (then it goes to -32750mAh and start going to 0). Looks like it is some max point of memory or some. Maybe it is better to change mAh to Ah for example after 10000mAh and then show it like 10.21Ah, 32,76Ah or so? MicroMinimOSD + Ardupilot. Thank you!

Answer 1 · 2021-09-06T15:01:19.000Z

Hi - yes, this is the designed limit. At the time of design such large batteries were unimaginable!! You are the first to reach the limit. Congratulations !!

I will look to implement as you describe. It will probably have to be 10.1Ah, 10.2Ah etc.
It will be a few weeks as I am away shortly.

I will post update here when it is completed.

Answer 2 · 2021-09-06T15:13:10.000Z

Thanks for quick reply! Yes, I was first with question about 12S LiPo battery voltage and now capacity is around 64Ah. It will be fine with 1 digit after point, no problem. I'm glad it is possible at least and you are healthy and online! Thank you, good luck!

Answer 3 · 2021-09-07T08:02:02.000Z

BTW - can you share a bit of info about your aircraft? 12s / 64AH sounds very interesting!!

Answer 4 · 2021-09-07T10:03:46.000Z

It is BD625 25KG (MTOW up to 50kg) Agricultural drone based on Hobbywing X9 propulsion system with 34" props https://ae01.alicdn.com/kf/H8915c91ab39749afadfa7cfc40dbb5b4c.jpg вт, 7 вер. 2021 о 11:02 ShikOfTheRa ***@***.***> пише:

…

BTW - can you share a bit of info about your aircraft? 12s / 64AH sounds very interesting!! — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#643 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIWKIVOLP5X6PFWUPHNKY43UAXBILANCNFSM5DQFNDDA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

Answer 5 · 2021-09-07T11:24:03.000Z

OMG. It is huge.
I have large tricopter that is 1m between motors and 15 inch props and is the biggest have ever seen

Answer 6 · 2022-02-11T17:41:09.000Z

Hello! I hope you are fine! This question is still actual for me. Thank you!

Answer 7 · 2022-02-14T12:45:14.000Z

Hi - sorry for delay - it is not forgotten - I have just been busy with day job and finishing off another development project.

MAybe 4 weeks I will be free to complete

Answer 8 · 2022-06-25T12:58:59.000Z

Hi! How are you? This thing is still actual for me. Now I'm using ver 2.0 pre release, also added GPS Alt and Baro Alt and both are not correct when GPS signal is lost

Answer 9 · 2022-12-17T19:51:12.000Z

Hello, is this still required. Today I found my development unit after 1 year in storage so will be completing a few requests
If yes, does the amp draw display correctly? And what is the maximum amp draw approx of your drone

Answer 10 · 2022-12-18T14:11:53.000Z

Hi - this is done.
It is not available in pre-compiled binaries that can flash from GUI until next release. If this is an issue, or not sure how to build your own using arduino, please re-open.

https://github.com/ShikOfTheRa/scarab-osd/wiki/Custom-installation-guide

Answer 11 · 2023-12-26T17:52:05.000Z

Thank you! Now it is mismatch with the simbols mAh to Ah. I can draw Ah instead of mAh, but up to 9999mAh there is no "m" letter, like meters in distance ot altitude values. Interesting challenge for me =)

Answer 12 · 2023-12-28T12:44:25.000Z

Hi - here is a temporary solution. It is not available in pre-compiled binaries that can flash from GUI so it will require:

1 Custom installation ( flash using arduino )
https://github.com/ShikOfTheRa/scarab-osd/wiki/Custom-installation-guide

2 Load fonts (Edit, load font from file, and select file from fonts folder in zip file below)

https://github.com/ShikOfTheRa/scarab-osd/archive/refs/heads/Battery-display-AH.zip

I am not planning any more updates for MWOSD. It is near end of life with very little capacity and also the number of users have reduced as they migrate to newer platforms. MWOSD will probably remain static now for many years.