Hi i’m just going to throw this out there. I’m spending a lot of time every day trying to build up my knowledge on theory and applications of ADC/DAC biz, both studying theory, taking notes on the various designs out there and also i’m building an ADC rn from someone elses schematics for getting control voltages in and out of the raspberry pi. My long term goals with this subject are
id like to have my own schematics and designs for ADC and DAC on hand that i can tweak for the tools i am creating because at a certain point i would like to stop focusing on nanocomputer boards for development and move to FPGA as my standard method because the nanocomputer environment makes certain aspects of high level coding easier but at the expense of really wasting a lot of the resources available maintaining the high level environment and being pretty suboptimal for any kind of situation where i want to be processing/generating simultaneous streams of data in synchronization. and also i want to just have some various of my own designs on hand that i can just etch to my own pcbs so that i can be as self sufficient as possible in this whole techno zone. and then of course open source all the stuffs i come up. id also like to understand electricty a bit better because i really don’t rn and at this point like eric p dollard makes as much sense to me as any textbook thing i read
a side effect of this that might also be kind of handy would be to have an open source design for grabbing video signals from the external world ->adc-> encoding into a UVC signal for USB 3.0 for potentially a more flexible and higher quality method for getting analog signals into digital zones than the EZ cap family and also less bulky on the encoding side than the blackmagics. ( i haven’t really played with an elgato capture device, i have a hunch tho that because they are aimed at retro gamers that they might be working on a 360x240p sampling with line doubling vs sampling at 720x480i. this hunch is based entirely upon the powers of my imagination and the price point and consumer base of the elgatos and may have no actual relevance to any of the registry of possible universes). this end of things would also require a lot of studying on Encoding and Digital communications which i’m also pretty heavily into
big fan of these two lecture series
In a more abstract zone I think that there is an incredibly fertile and unexplored zone out there for hybrid analog/digital processing units. I am also a big fan of studying nonlinear dynamics, algorithmic complexity theory, and computability from an abstract viewpoint. From my experience working with signals it is obvious that there are really useful things you can do with analog voltage and analog photons that you can’t usefully emulate with dsp in any kind of high speed situation and vice versa. so i just want to have a playground for my own hybrid a/d processing unit so that i can experiment more with abstract signal side feedback systems that can utilize the strengths of electrons and photons for high speed iterative calculations. any kind of signal system where you are involving camera feedback and digital processing is already a hybrid analog digital computer! its just kind of too bulky most of the times to be working with like usbs cameras and operating systems and proprietary driver sampler/encoders gunking up the whole flow
if yr interested in like maybe joining in, having little meetups and shares about these ideas lmk! or if like you would just enjoy it if i like keep writing about what i’m learning or whatever just as a bystander for now also lmk!
and also if study groups ever seem like something that just isn’t a priority for this group also lmk and we can ditch this category too to keep things streamlined