After 2 hours of wiring/debugging/rewiring, I have my EEPROM programmer halfway done. Currently is only able to read locations in memory. Next step: make it programmable.

(For those of you who dont know, EEPROM stands for Electrically Erasable, Programmable Read-Only Memory

Nice, no idea what it's for though

Cool! Building an old school computer or something?

It looks beautiful 😍

That looks cool!

is it microcontroller ? beautifull

A hint if you plan on being really oldschool and spend days programming a single EEPROM all by hand: Check your DIP switch's datasheet, most of those aren't specified for a large number of switching operations. At least add some LEDs for the address bus before you finish programming and notice your LSB switch has failed halfway through.

Are those purple LEDs or does it just look like that on the photo?

That's really cool man!

EDIT: Tag me if you post any updates, if you don't mind of course :)

its so beautiful 😭😂 update: we weren't able to finish our project on time because we saved the wrong data in the EEPROM 😭 we had to erase everything

Nobody uses EEPROM now right ? Is this some college project ?

++ for just that beautiful image!

@nickj Good thing it was a EEPROM and not and not one of the non erasable ones

I like the fact that you've got the balls to build your own EEPROM!!!!! ✌️

YOU MISS A )
AHHHHHH MY OCD TINGLES

The photography is really nice here, too. Is that actual DOF or simulated software?

@milkybarkid yep! 8 bit computer

@MAriefW 8 bit computer :)

@7400 this is mostly gonna be used for combimational logic so the programming should be rather simpls, but ill definitely keep that in mind. And nope! Theyre red, just looks purple

@neelgeek just a hobby project :)

@epse Thank ya :) Its a real photo

@neelgeek Actually, I can think of 1000s of devices off the top of my head that I know use EEPROM designed in the last 10 years.

@neelgeek no EEPROM is still regularly used in industry today. It is still a popular choice in embedded systems that need to store relatively small amounts of data/parameters (think calibration data, production data...though for production data I like the idea of one-time programmable memory). There are other alternatives that certainly may be better for a particular application (FRAM is really cool replacement) but EEPROM is still a go to for most.

Ever hear of an FPGA? These are very commonly programmed by an EEPROM that contains the bit-file that sets up the logic cells.

Though I believe NAND and NOR flash are popular choices in FPGA programming as well (I was just stating an example of where you can see them in use). The company I work for also has products that store the u-boot bootloader on an EEPROM which I believe is quite common.

@neelgeek I use it on my esp8266 yo store WiFi login data and temperature data for my shed. Easier than SD card as it’s built in

But can it run Crysis?

Nice, I'm currently working on RS NOR/NAND Latches and registers in my electronic class

@AdrienNini fun stuff!

@RuntimeError yep ! It's one of my favorite lessons at my University.

@spaceDev yeah! one thing id be caredul of is fake eeprom chips, the first set i bought were fake and i spent nights trying to figure out why i couldnt get it to work

@RuntimeError Fleabay is a wonderful and terrible place