Recent posts

#31

Little Rosie(MNLR4548RE and MNLR3648M) / Re: Little Rosie first impress...

Last post by bigbillsd - December 23, 2025, 11:57:56 AM

I would love to hear how you are using AI to write programs!   I was a programmer back in the 90's (yes eons ago)  and now I just write a few simple batch commands as I don't really want to go down that rabbit hole again.  I really loved to write code but I found I would stay up all night to get it right..  over and over...    -Bill

#32

Little Rosie(MNLR4548RE and MNLR3648M) / Re: Little Rosie first impress...

Last post by ClassicCrazy - December 22, 2025, 10:15:53 PM

Nice job Larry, I like that you were not afraid to express some shortcomings. I will be watching for future updates.

Yeah a bit of nitpicking about access , especially since I had to put it in a harder to reach existing spot. But performance wise - it is all good so far. I haven't put any real big loads on it so far. I do know that it is a lot quieter than the outback which has some pretty loud fans that would run at loads that I don't hear anything from the Little Rosie.
Today I finally got some of software I am writing running to monitor it. It is always a time consuming process to steer my AI helper to the end goal in a simple reasonable way.  I will make a video about that sometime soon .
Larry

#33

Little Rosie(MNLR4548RE and MNLR3648M) / Re: Little Rosie first impress...

Last post by Saggys - December 22, 2025, 07:39:08 PM

Nice job Larry, I like that you were not afraid to express some shortcomings. I will be watching for future updates.

#34

Little Rosie(MNLR4548RE and MNLR3648M) / Re: Little Rosie updates

Last post by Vic - December 22, 2025, 02:40:32 PM

Hi  Larry,

Thank you for doing all of this work.

Right now,  I am just a spectator in all of this.

Thanks,  too,  for posting your work,  and Code.  73,  GL,  Vic

#35

Little Rosie(MNLR4548RE and MNLR3648M) / Little Rosie updates

Last post by ClassicCrazy - December 21, 2025, 10:12:41 PM

I got the Little Rosie hooked up to the Hawkes Bay. MNGP2 shows the Little Rosie output and for changing settings.
If use the updater app on Android or Iphone - it only sees the Hawkes Bay - there is nothing about Little Rosie showing . I even tried disconnecting the mngp2 from Hawkes Bay - did a reset on it, and plugged little rosie directly into mngp2 and ran the updater app and nothing about little rosie shows up on updater . Is it supposed to ?
I tried quite a few times ( 30 or so ) to get MNGP2 updated but it always fails . Last time I did update for mngp2 I used an iphone but that only has production app  - not a beta app like the android has.
Does anyone have any tricks to get the stubborn MNGP2 to take a beta update? ( I was able to get the Hawkes Bay update to work ) .
Larry

#36

Little Rosie(MNLR4548RE and MNLR3648M) / Little Rosie first impressions...

Last post by ClassicCrazy - December 20, 2025, 11:25:41 PM

I got a Little Rosie and replaced the old reliable and very heavy Outback inverter with it. The Little Rosie is very light weight wise. It works, so far no complaints on that , I haven't really loaded it up much. I do notice it is a lot quieter than the Outback which had sort of loud fan that ran with many loads that weren't too large. The Little Rosie is very quiet and I haven't noticed it's fan running if it even has. I had some critiques about some of the layout for wiring which you can see in the first impressions video I made.
Now I am working on getting my Hawkebay monitoring software to read the Little Rosie data. Along the way I got waylaid trying to refine the HB code , and then I noticed some false data coming in on the canbus since I hooked up the Little Rosie. So I need to check my canbus wiring and terminations, etc tomorrow.
Here is the video I made, and I will have another about the canbus and software when I get those done.
https://youtu.be/WI2yNackAJE
Larry

#37

The Rosie / Re: Generator Size

Last post by Weldman - December 19, 2025, 04:19:40 PM

Either way it does the same stuff with the new update. No change there.

Apologies if you've already listed it, but what exact efi generator model are you trying to use? Would be helpful for the engineers I think they mentioned in another thread they are happy to test specific models that are causing problems

Champion EFI 9500W/11500W

#38

The Rosie / Re: Firmware update versions

Last post by FNG - December 19, 2025, 12:28:06 PM

I released 25.111.13.08
1- Supports up to 6 Rosies in 120/208 3 Phase
2- Added global current limit controls
3- Fixed battery temp error
4- Added a 5 second delay on AGS on so when switching from off to auto you now have 5 seconds to switch without the genny starting
5- Changed Load Transfer to also transfer on overload of a single leg
6- Changed grid connect timer to 5 minutes if Sell is enabled
7- Tweaked AC coupling mode to prevent BMS nuisance trips when battery is full
8- Added support for up to 12 Rosies in a 120/240 stack
9- Fixed a small bug that caused nuisance reboots randomly
10- Changed Absorb cycle to only trigger after 1hr of grid loss or when Rebulk is hit. Note if you have MPPTs they need to be unlinked so they do not command a new bulk charge
11- Added support for a LOT more generators

#39

The Rosie / Re: Beta Firmware

Last post by FNG - December 19, 2025, 12:27:58 PM

I released 25.12.11.00
1- Supports up to 6 Rosies in 120/208 3 Phase
2- Added global current limit controls
3- Fixed battery temp error
4- Added a 5 second delay on AGS on so when switching from off to auto you now have 5 seconds to switch without the genny starting
5- Changed Load Transfer to also transfer on overload of a single leg
6- Changed grid connect timer to 5 minutes if Sell is enabled
7- Tweaked AC coupling mode to prevent BMS nuisance trips when battery is full
8- Added support for up to 12 Rosies in a 120/240 stack
9- Fixed a small bug that caused nuisance reboots randomly
10- Changed Absorb cycle to only trigger after 1hr of grid loss or when Rebulk is hit. Note if you have MPPTs they need to be unlinked so they do not command a new bulk charge
11- Added support for a LOT more generators

#40

Barcelona / Re: Beta Firmware release and ...

Last post by FNG - December 19, 2025, 08:50:44 AM

released 25.11.25.00

1- Lots of chanegs to tracking to improve low light
2- Changes to the sweep algorithm for closed loop to help with over shoot on batteries that dont PWM current when full