Use a 2.5" LCD from a Blaupunkt Dashcam with Raspberry Pi?

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patrickbootscec
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Use a 2.5" LCD from a Blaupunkt Dashcam with Raspberry Pi?

Post by patrickbootscec » Mon Nov 18, 2019 1:26 pm

Hello, and thank you for reading my topic. I recently bought a "2.5" LCD HD Dashcam" from the Blaupunkt brand (BPDV122), although I am aware they have just used this design from another company.
https://www.blaupunkt.com/us/nc/product ... gle/14773/

I took it apart in hopes of using its LCD screen for another project. I couldn't find any specifications online, however I did find a lot of links to Remont-Aud. Many users there have disassembled similar models or the same model.
https://remont-aud.net/dump/gps_navigat ... 7m_main_v1_…
https://remont-aud.net/dump/gps_navigat ... -1-0-68178
https://remont-aud.net/dump/gps_navigat ... t_lcd_scre

The Dashcam comes in two boards connected with a 24-pin AWM 20624 ribbon cable. The first board has the camera, LED lights, SD card reader, USB port, speaker, power on button, and record/select button. The second board has the 2.5" LCD screen and four buttons (Menu, up, down, and mode).

This video shows the teardown of one of these models: https://www.youtube.com/watch?v=rKeAGffMmJI

I wish to use the LCD screen from this Dascam with a Raspberry Pi Zero..the quality of the camera aspect wasn't important to me. If anyone here can help me, it would be very appreciated.


Board markings
On the first board: JS-C007M MAIN_V1.2 2016-06-08
On the second board: 20160507 and JS-C007M-LCD-V1.2
On the LCD flex cable: H9341, SJ24N-3670F, and HXY

I looked up a couple chips on the first board; voltage regulators, mosfets, chips for the charging circuit, and three larger chips. There was only one chip on the second board, another mosfet. The largest chip on the first board reads "24CC MQNK 173.1 1634". Googling that and those parts brought up nothing. The second largest read "MK 25Q80BVNIG 1645" which came up with the Winbond W25Q80BV. It seems to be "8-mbit serial flash memory with dual/quad SPI".

I think that the display is serial-driven. The gentleman in the teardown video said that the main chip on the first board is giving out serial.

It may also be of note that the on the LCD's 36-pin flex cable, "H9341" is marked. I found that some other displays being sold from China were marked with "ILI9341".

Here are photos of the disassembled Dashcam on Imgur: https://imgur.com/a/XGl2ohd

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Helder
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Re: Use a 2.5" LCD from a Blaupunkt Dashcam with Raspberry Pi?

Post by Helder » Mon Nov 18, 2019 3:13 pm

Unless you know the screen model and likely have a datasheet for it you're shit out of luck since no one knows the pinout or what this screen is capable of.
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xpaceseven
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Joined: Mon Oct 12, 2020 12:37 pm

Re: Use a 2.5" LCD from a Blaupunkt Dashcam with Raspberry Pi?

Post by xpaceseven » Tue Oct 13, 2020 11:50 am

you need to locate the LCD controller chip ... google the markings on the chip

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