Well .... yes!
I was in a kids-baby store the other day buying some pants for my nephew and the sales-lady is talking to a parent about pacifiers-cleaners-steriliser ?!?
Well I didn't know what a pacifier-steriliser is and I persisted hearing their conversation about UV exposure-cleaning procedure of the pacifier. Suddenly it hits me!
As recently I'm trying to find a way to delete some EPROM chips for my eprom-reader-writer-expreriment.
So I ended up buying the pacifier-sterilizer for 18 Euro and here are the results.
I should first mention that a tolerable eprom-eraser for massive chip erasing up to 4-8 chips in approximately 10 minutes would cost about 13-22 euros on Amazon.
Having said that the below "experiment" (proof of concept) makes the pacifier-sterilizer a quick & dirty alternative solution :)
I was in a kids-baby store the other day buying some pants for my nephew and the sales-lady is talking to a parent about pacifiers-cleaners-steriliser ?!?
Well I didn't know what a pacifier-steriliser is and I persisted hearing their conversation about UV exposure-cleaning procedure of the pacifier. Suddenly it hits me!
As recently I'm trying to find a way to delete some EPROM chips for my eprom-reader-writer-expreriment.
So I ended up buying the pacifier-sterilizer for 18 Euro and here are the results.
I should first mention that a tolerable eprom-eraser for massive chip erasing up to 4-8 chips in approximately 10 minutes would cost about 13-22 euros on Amazon.
Having said that the below "experiment" (proof of concept) makes the pacifier-sterilizer a quick & dirty alternative solution :)
So... the EPROM I erased is an ST Microelectronics 27C256. An erased EPROM means that all memory addresses are set to logic '1' (+5v) or FF in Hex. In order to verify that the EPROM is erased I used my own custom made EPROM-Reader-Writer (ongoing sub-project for another project) on a breadboard. At the beginning the EPROM was all 1's (ones) then I wrote some bytes in the first 7-8 addresses so I could have something to "delete" or should I say initialize ... dah!
After placing the EPROM in the pacifier-steriliser for approximately 13 minutes ... voilà!!! The chip got back to it's initial state (all addresses 1's ones)!
Actually the whole process took me two(2) 6-minute-sessions with the pacifier-steriliser because this piece of equipment stops exposing the pacifier in the first 6 minutes. This means that i had to close the lid twice to get the total exposing time of 12+ minutes which is needed to erase the EPROM.
After placing the EPROM in the pacifier-steriliser for approximately 13 minutes ... voilà!!! The chip got back to it's initial state (all addresses 1's ones)!
Actually the whole process took me two(2) 6-minute-sessions with the pacifier-steriliser because this piece of equipment stops exposing the pacifier in the first 6 minutes. This means that i had to close the lid twice to get the total exposing time of 12+ minutes which is needed to erase the EPROM.
Exposing times vary from eprom to eprom but I would guess that a total of 18 minutes (3 sessions) would be just fine to erase most chips.