Comments (5)
Would be useful to know; I guess the corporations will try to desperately counter the civil rights-to-repair movement, so information in this regard is super-helpful in the long run. And Arduino's are quite accessible even for semi "Average Joe's" (give or take).
from bob_cassette_rewinder.
Of course! It's just a bog standard EEPROM inside, and you can use any arduino to read and write it.
Here's a tutorial on sparkfun: https://learn.sparkfun.com/tutorials/reading-and-writing-serial-eeproms/all
from bob_cassette_rewinder.
The PCB plugs into a USB-A female socket just fine:
https://raw.githubusercontent.com/dekuNukem/bob_cassette_rewinder/master/resources/pics/pmm.jpeg
the pinouts are, from left to right in that photo on the USB socket, VCC, SDA, SCL, GND
from bob_cassette_rewinder.
I hope this is not to mutch to ask, but do you have some example code on how to write the byte at address 0xa1? If i get this right: theoretically I just need to access the EEPROM via i2c and write 0x4e at address 0xa ?
Edit: I am struggling a bit with the EEPROM I2C address... are all 3 pins grounded for address 0x50?
from bob_cassette_rewinder.
this should be a decent tutorial: https://microcontrollerslab.com/24c04-two-wire-serial-eeprom-interrfacing-arduino/
A0, A1, A2 are all grounded on bob cassette's EEPROM, so the address should be 0x50.
Someone in the discord chat got it working with an Arduino, so maybe you can try asking there as well.
from bob_cassette_rewinder.
Related Issues (18)
- Commercial Dishwasher Detergent & Rinse Aid for EU Market / German Market? HOT 34
- Possible Investigation - Continous Feed Refill / Reset Inbuilt HOT 1
- Rock and Roll Cartridge, Tank 2 HOT 7
- Chemical composition of detergent and rinse aid HOT 2
- Write protect on the EPROM HOT 4
- Tindie's custom fees in the EU HOT 3
- Connector pinhead interface HOT 1
- Rock'n'Roll cassette detergent HOT 3
- Working in 2022? HOT 9
- Reverse Engineering of Bob (including backup of ESP flash) HOT 6
- USA Equivalent refills? HOT 1
- I get a banner from GitHub for this repo when I open my own repositories HOT 4
- Hardware connector issue HOT 1
- Did you consider writing an EEPROM emulator? HOT 4
- Similar reset for machine cleaner? HOT 2
- Value @ 0xa1 = Washes left XOR 0x50 HOT 2
- Look into Silicon plug or equal to refill by the orginal filling ports HOT 8
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