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@MightyPork@dev.glitch.social @tom it's yellow soldermask

oh actually $17 because it's ever so slightly larger than 5x5cm

still, better than the local offering

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@MightyPork@dev.glitch.social yep, though can only imagine ever using only one and don't know anyone else who would need this 😂

$12 to get the eepromdate board manufactured by dirtypcbs, in any color i want :thaenkin:

@MightyPork@dev.glitch.social @er1n yeah but shift register means writing serial out from the arduino, which slows down the process... with this i make 4 consecutive parallel writes

@MightyPork@dev.glitch.social @er1n honestly if i didn't want to support random access i could just use a counter and clock it every page ... but this was the original design from 2 years ago

@er1n @MightyPork@dev.glitch.social shift registers are too slow! the flip flop work faster to comply with the timing required by the EEPROM's writing specs

@er1n using 8 lines from a MCU to address 19+8 lines at once

@er1n @MightyPork@dev.glitch.social cheap EEPROM writer github.com/Lana-chan/EEPROMDat

i use this to write master system flash cartridges

@banjofox@dev.glitch.social @minego@mastodon.social @noelle maplebots are the tiny ones, i am not a maplebot

@MightyPork@dev.glitch.social which means ...... doing it over again..........

@MightyPork@dev.glitch.social what's worse is since the last 574 is only addressing 3 lines i bet i could get away with only 2 of them and rewrite the arduino firmware to use 2 extra lines and simplify the board

@noelle (and what this lets me do is have a cheap arduino-based EEPROM writer)

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