Search found 69 matches

by MAsic12345
Fri Oct 19, 2018 2:04 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

Wonko Can i repeat this signal with arduino? test.png Well 5 volts I can pick up a resistor and lower it by 3.3 volts. With this problem, no, I think so. the most important thing is to repeat this signal in the picture I already had time to study 50% с++ and programming in Arduino has also been mas...
by MAsic12345
Thu Oct 18, 2018 2:17 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

the printer shows a printhead problem in which I closed the contact I checked all the contacts with an oscilloscope and did not find an analog signal With a needle for supplying ink, everything is okay, as a last resort, i can make a hole in the carriage in white. There is ink there because I take o...
by MAsic12345
Mon Oct 15, 2018 4:00 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

I tried to block the contact with tape and the printer gave an error tried any contact I think it is connected with the fact that the rest of the contacts do not stick out of the thickness of the scotch Scotch was very thin, used Kapton or the printer simply recognized that the contact is not connec...
by MAsic12345
Mon Oct 01, 2018 6:59 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

and what protocol does hp 45 have for data transmission
I can not find the protocol with a seven-bit clock
there is at whom that oscillogram hp 45
I have not yet started to connect to arduino, waiting for materials with aliexpress
by MAsic12345
Mon Sep 24, 2018 8:27 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

Corekt
by MAsic12345
Mon Sep 24, 2018 8:27 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

Corekt
by MAsic12345
Tue Sep 18, 2018 8:13 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

to which microcontroller to pay attention
on what data does 9/13 output to SPI or I²C or another?
by MAsic12345
Sun Sep 16, 2018 6:36 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85

by MAsic12345
Thu Sep 13, 2018 8:09 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18876

Re: Hacking cartridge HP 84/85