Search found 462 matches

by ccs_hello
Sat Jan 25, 2020 3:24 pm
Forum: Technical Discussion
Topic: catalina install help
Replies: 2
Views: 18

Re: catalina install help

Hackintosh is a specialty area and hacker language is used everywhere.
I.e., not designed for layman/faint of heart/turn-key. <-- need to graduate from elementary level
(Sorry it's the mentality thing)
by ccs_hello
Sat Jan 25, 2020 3:22 pm
Forum: Troubleshooting
Topic: [DEFECTIVE] colored rectangles at startup and no keyboard support (LP Alpha)
Replies: 4
Views: 30

Re: colored rectangles at startup and no keyboard support (LP Alpha)

Christian, Sorry to hear that. If the first screen is what you had shown (noises on top and bottom side), most likely there is some power-rail damages (such as HDMI driver, embedded controller <-- keyboard/mouse go thru this IC ) Please inspect the motherboard carefully to see there is any blackenin...
by ccs_hello
Fri Jan 24, 2020 11:52 pm
Forum: Technical Discussion
Topic: Drive LVDS lcd off Alpha eDP port?
Replies: 5
Views: 39

Re: Drive LVDS lcd off Alpha eDP port?

Need an engineer fluent in those intricacies** to get everythibg right, then yes, it could work
** connector pitch, signal format, voltage level, logic board level, backlight level, EDID, etc., etc.
by ccs_hello
Fri Jan 24, 2020 1:04 am
Forum: Technical Discussion
Topic: Power switch again, but without mechanical switch
Replies: 3
Views: 33

Re: Power switch again, but without mechanical switch

Don't know the specifics. Usually will go thru a level shifter/open-drain buffer. BTW, is that SW pin tied to the processor's PMU_PWRBTN pin? I am guess using an open-drain driver to pull down the PWR_button connector wold work. However, a caveat: If it's through an external (separate powered and al...
by ccs_hello
Thu Jan 23, 2020 1:54 pm
Forum: Technical Discussion
Topic: Drive LVDS lcd off Alpha eDP port?
Replies: 5
Views: 39

Re: Drive LVDS lcd off Alpha eDP port?

MIPI-DSI (soe called it LVDS) display interface is an old display interface method.
eDP is the newer one (very HDMI monitor like, the display has quite a bit intelligence in it.)
Its apple and orange difference and AFAIK there is no adapter card that convert one to the other.
by ccs_hello
Tue Jan 21, 2020 1:38 pm
Forum: Technical Discussion
Topic: arduino joystick control mouse
Replies: 1
Views: 27

Re: arduino joystick control mouse

Google search Arduino HID, you can find several libraries for the functions you are asking for (especially for USB-equipped Arduino, core microcontroller, e.g., Arduino Leonardo (ATmega32u4). However.... 1. watch out for the delay introduced in such arrangement (e.g., for gaming) 2, if two or more (...
by ccs_hello
Fri Jan 17, 2020 1:56 pm
Forum: Technical Discussion
Topic: SIM Module Compatibility
Replies: 4
Views: 115

Re: SIM Module Compatibility

Be careful. RS232 voltage level is "negative voltage is logic 1, positive voltage is logic 0". I.e., RS232 driver is an inveter. Even if you tame the voltage level by clamping, the logic level is the reverse. Re: cellular card solution Not I am aware of. Not saying it's impossible but so rare (lapto...
by ccs_hello
Thu Jan 16, 2020 8:36 pm
Forum: Technical Discussion
Topic: Lattepanda delta 4pin connector battery
Replies: 5
Views: 74

Re: Lattepanda delta 4pin connector battery

Oh just checked my LP Delta and indeed it does not have that 10-pin battery connector.
Guess it's a "lite" (cost down) version thus omitted.

Re: change the battery pack to make it as 12V 3A
Ans: not possible
by ccs_hello
Thu Jan 16, 2020 4:59 pm
Forum: Technical Discussion
Topic: Lattepanda delta 4pin connector battery
Replies: 5
Views: 74

Re: Lattepanda delta 4pin connector battery

No, it cannot be used for power sourcing such as charging a battery.
Use that 10-pin battery connector instead.
There are pinned threads on these two subjects. Please take a look at them.