I posted yesterday a Youtube movie about ATMEL AT24C32 Serial EEPROM, where I said it's impossible to manually beat bits into a serial EEPROM and @jony1305 replied with : "Believe me, we can write and read from I2C EEPROM manually using only microswitches and hands. It is time-consuming, but it can be done. "
All I can think of, where I can find mister Jony1305, is here on the forums. I remember a Jony from Poland ? some very long time ago here on the forums.
If you are here, please enter in discussion and tell me how I can do it so I can make a movie about it !!!
Im also personally fascinated of this procedure that I attempted some years ago, before chatgpt revolution, and I was frustratingly unable to drive anything for quite some long time of trying, reading the datasheet and still not able to get results in practice.
Thank you.
Addendum: - I actually find this manual procedure on youtube, for a serial EEPROM, but I could not get results from literally copying bit by bit of that guy was saying and showing. Another slap of frustration right there. I remember I tried a couple of days and nothing. My conclusion is that he might had skipped -1 bit- in his presentation movie.

 

i agree - it is possible. the only issue is that normal switches will have mechanical bounce. so to ensure no bounce one would need to make suitable debouncing circuit. in simplest form capacitor (and resistor) can be used to smooth out fast signals by making LPF

 

there are tons of online examples on this, such as:
https://electrosome.com/switch-debouncing/

 

true, my favorite is using 7414 for denouncing.
I solved the problem (the lazy way) with a "manual" arduino program after all. Not "manual" with wire and buttons.