Can you help to drive this colorfull Speedmeter Display

Other Hardware Displays
1

Hello

Hi

I have a working display from electric motorcycle... it was a batery gauge , speedmeter and odometer... backlight works fine and if 5v is applied over the pins in the display , some or all segments and icons gets illuminated....sometimes i have partial iluminated sections like in picture but nothing of its logic to drive is clear for me. i wonder if you could help with a sketch and explain connections to test if can make it work on new prpject...how to test commons and how many pins are common etc... when it was working fine looked like this:

20241207_193300
20241207_1933001920×1804 166 KB

now ( partial zones when 5v applied)

20241207_192112
20241207_1921121920×2560 146 KB

Should i remove from old pcb??? thks in advance

20241207_192414
20241207_1924141920×2560 414 KB

2

I see several bad solder joints. Fix those first, but be prepared to replace the board as the bad solder joints may have destroyed the board.

3

thanks !! as i stated i do not care about the board or pcb.... i ask if can remove the diaplay to work with arduino... i count 95 segments/icons to drive ...thks

4

大灯 - headlight
矴灯 - lantern (running lights?)
左灯 - left light
灯 - lamp

5

Whats written on U1?

Do you still have the motorcycle?

6

No no forget the cables... forget motocycle... im not interested in original use im going to use in orher app but need to know how the display works... which are common pins and how many and sketch with "AC " square pulses to drive it.

7

Don't waste your time. Displays like that are custom designed for the purpose and you're not likely to get very far trying to figure them out. The chip driving them is likely a CPU that has built-in LCD drivers and not arduino-compatible.

If you want a similar display that can be used with arduino, you're better off getting a color TFT graphic display and recreating the appearance of this one.

8

Ok... not looking at the signals of a working reference... got it.

I think you need to figure this out. Bonus points for not destroying the display in the process.

You really like pain, don't you? A LCD driver chip is the besser choice here.

9

this is the quality of answers i was expecting, for a similar subject :

10

To get answers like that you need to start with similar questions. Do you have the specs/schematic of the display subcomponent of the colorful display you intend to use?