C8051F350" ... "(like cheapest arduino nano/pro), but contains only 8K flash.
ideal solution for precision U/I/RLC-meter
If I recall the date correctly, the AVR TT project goes all the way back to 2009 in it's original form with the ATmega8. A similar design might be possible using something like the Silicon Labs chip. I haven't found many sources to walk me through using those 8051s though. I haven't looked into the specs of the 350 but I have a few C8051F310s (because they have a hardware USB port). I could be wrong but it looks like I need a Silicon Labs programmer and have to use simplicity studio or Keil. So my choices are either not very well documented for beginners/Elmer Fuds like me, or extremely overpriced software.
The Silicon Labs 8051s I've looked at all seem to have an odd 3v port design with some that are 5v tolerant but they don't have 5v analogue. When it comes to programming toolchains that are accessible to the majority of people around the world it is almost impossible to find a more accessible and cheap option than the USBasp or Arduino as ICSP. There are tutorials available on the internet in almost any language with these devices.
Contrary to what many people like myself try to do with this project, according to the project developers, "this is a design intended to explore the potential of a simple 8 bit AVR using the minimum amount of hardware while exploring the potential of the software." The actual OSHW project is extremely well documented. All of the clones fail to follow the project as specified in the documentation. I have created schematics detailing two of these and their failures. The fact that both firmwares have tried to accommodate these devices is remarkable and everyone should be thankful for this.
If anyone wants a fully functional, "bug free" device, go build the project spec yourself as hundreds of others have done. If anyone complains about what they are given for free as a gift, be aware it clearly marks your character, and everyone is left wondering why you are here. If anyone sees a problem they know how to fix, it's simple, be a class act, fix the problem and submit the change to the developers. Complaining about a free gift is insane.
-Jake