Bit out of the blue but on the prodding of a fellow BLF member I have designed the exact opposite of the Tiny10:
The board follows the same principles as the Tiny10 - it's just a larger NANJG/QLite. Swap over the critical components and add as many AMC chips as you see fit (up to 32). All components are single sided so if you use the skillet/oven method of re-flow soldering this will be a piece of cake (though there is solder mask on the reverse side). It is intended to be used as an SRK replacement driver.
The 3 'stars' are available as per stock drivers and are numbered on the silkscreen 2, 3 and 4. If you use the electronic switch holes these connect to ground (SW-) and pin2/star4 (SW+).
I have not tested the board yet. I have ordered some but given my location it'll take a number of weeks to reach me. There is no reason why they won't work of course ;)
The board is available from OSHPark and costs $16.55 for 3: http://oshpark.com/shared_projects/Cm0cEnQy
Haha yeah it only took a couple of hours to whip up. It's not meant to be complicated. Just simple to use without the need for special micro-controllers. Literally just a bigger Qlite! Probably more powerful than stock SKR drivers as well.
I think it's a good thing. The nang105 driver has a few firmware options that make it a very good driver. Others may have better drivers later, but you just released a very good option that we don't have to wait for. I'll give it a shot. I already have a SRK that's been waiting too long for a decent driver upgrade.
Wow! This is simple stuff but ingenious none the less - thanx Matt!
This (obviously?) requires the LED's be in parallel, and having an e-switch driver. The MiniMo driver could be used, since Doc Jones' more advanced drivers are only available on his hardware. Is this the project he was prodded to release source code for an e-switch driver?
To be honest all these 7135/ATtiny drivers are electrically identical. Making a 15mm driver would take no time at all. I'll see what I can whip up tonight after footy training.
As for the firmware - this driver can be used as a normal NANJG driver (no e-switch) provided you have the right firmware. If you want to use an e-switch you will probably need DrJones MiniMo firmware. If you use that firmware you CANNOT solder the bridged marked as number 4.
I just realised I forgot to check with DrJones if he was working on an SRK driver. I know he was working on a larger 4 LED driver that allowed control over each emitter (or cycle through them). If this driver is stepping on his toes (because it sort of relies on his firmware which I did NOT think about) I will pull it from OSHPark.
There are other firmwares out there too (or soon to be - I believe Werner said he was planning to release source code once he has it ready). DrJ also sells bare pre-flashed tiny13s, I think, for his more complex versions.