How much will one of these cost?
Cost goes down as I make more. I didnt want to make one or two just for myself cuz it wouldnt be worth it. Im guessing around 15-35 (depends on quantity once again). In a few days i’ll give an exact figure once I get a better idea of how many I might be making. Ive shot loneoceans an email just to make sure he is okay with me doing this and waiting on a reply, the license he has on everything is Non-Commercial CC.
As you said before, since you aren’t planning to make a profit, it should be non-commercial.
You are just trying to provide a service to other people who can’t do this kind of stuff alone.
In for 2 and thanks.
What are the dimensions of the driver, 17mm by how tall? What firmware can you flash on it? Narsil or Anduril by any chance?
Price is good, I’m in for two.
If you get buried with orders I’d be willing to just buy the parts off of you, I want to convert one to 12 volt one anyway.
I don’t think Lone Oceans will mind if you make them, he seemed willing to get a build house to make a batch. It’s good you emailed him, if he sees there is interest in his driver he might get around to finishing the programming and release the code.
I would be in for 2 fully built and 2 part packages…if that could be an option…
This driver uses a different Attiny and is programmed in Arduino, it also uses components not supported by either one of those programs. The code has not been released, just the hex so it can’t be modified in any way.
There is no schematic so it is hard to say if an adapter board can be made to put an 85 in there. Toykeeper has started porting Anduril to different Attiny’s but I don’t know how far along she is or where it is on her priority list.
The good inductor is 7mm tall, a less efficient one that will work is 3mm tall.
I’m interested in one or two depending on price
Interested in 2 as well. Been wanting to build a C8 with an XHP50 for a while
Was planning on ordering the taller inductor. I might order a few 3mm inductors and mess with the switching frequency to minimize issues (gonna have to look more into boost converter design). The large 7mm inductor is almost as expensive as the MS2429!
I would be in for 1!
The schematic in post 54 is likely similar to this driver.
Texas Instruments has some online simulators for their controllers. Its interesting to play with inductor values, output currents and voltages. Then run the simulation and check for component, switching frequency and efficiency changes.
I think Lone Oceans gave Texas Ace a driver to test out. Maybe PM him to see if he found anything that needed tweaking.
In for 1 driver.
I’m not in this time but thanks a lot for doing it!
12v operation is updated on Loneoceans GXB172 REV.A2 BOM. Only two changes to make if you use 25v output capacitors… Sense resistor (R1) and (R13). I’m using a XHP35.2 but I haven’t had a chance to do much testing yet.
Autonomousperson can we see some of your other work? Other high (and small) parts count boards you’ve assembled?
This is my first community project so it will be challenging however I do not expect issues assembling the board. Tomorrow @ work if i’m not too busy i’ll try to get a video of my rework skills. I have multiple irons as well as a reflow station. frequently reflow 01005 sized smd componets as well as BGA packages and will demo both. My assumption is if I can work on iPhone logic boards I can easily work on these drivers with larger sized components.
Here is something for now… https://www.reddit.com/r/mobilerepair/comments/8wnc3o/battlestationssss/
Edit
I am purchasing these parts out of my own pocket, you pay only after its assembled. No risk to you, just want more people to get their hands on this board.
As I understand, this version not support e-switch ?
If so I am interested in 2 but if price is <20$
I’d be interested in a few depending on price and firmware.