justada 
I received an old car radio some time ago and decided to scrape components from it. One of the chips was a TEA6330T sound fader, that miraculously has a not classified datasheet ( https://pdf1.alldatasheet.com/datasheet-pdf/view/19741/PHILIPS/TEA6330T.html ) so naturally i decided to bring it back to life with a custom Arduino library!
You can view the lib on my github here: https://github.com/adreline/TEA6330T
The library includes functions for every option the documentation mentions. I tested it without actual speakers but the chip responded correctly to all the commands. Sound test remains on my todo list.
pdf1.alldatasheet.comTEA6330T PDFPart #: TEA6330T. Description: Sound fader control circuit for car radios. File Size: 158.7 Kbytes. Manufacturer: NXP Semiconductors.
Check my Image Description’s![Months of work have gone into decoding the Game Boy’s data bus and creating a schematic for the interface board. Tricking the Game Boy into thinking it was loading a game, while actually displaying incoming speed data. The screen’s low resolution and slow refresh rate rendered it barely readable in a moving vehicle. But [John]’s goal wasn’t practicality — it was just proving it could be done.](https://nerdculture.de/system/media_attachments/files/114/251/391/317/762/186/original/f1ea811e6cb4c4c3.jpeg "Months of work have gone into decoding the Game Boy’s data bus and creating a schematic for the interface board. Tricking the Game Boy into thinking it was loading a game, while actually displaying incoming speed data. The screen’s low resolution and slow refresh rate rendered it barely readable in a moving vehicle. But [John]’s goal wasn’t practicality — it was just proving it could be done.")
![[ImageSource: John Sutley]
Showing real-time vehicle speed on the Game Boy sounds like it should be relatively easy, but the iconic game system wasn’t exactly built for such a task. Its 2 MHz CPU and 160×144 pixel dot-matrix screen were every kid’s dream in 1989, but using it as a car dashboard is pushing it. To bridge that gap, [John] designed two custom circuit boards.
One interfaces with the Game Boy, intercepting its memory requests and feeding it data from a microcontroller. The other processes the CAN bus signals, translating speed information into a form the Game Boy can display. [John] used inexpensive tools and software to read the CAN bus data, and used GBDK-2020 to write the software in C.](https://nerdculture.de/system/media_attachments/files/114/251/392/340/955/496/original/f54a186d63357559.png "[ImageSource: John Sutley]
Showing real-time vehicle speed on the Game Boy sounds like it should be relatively easy, but the iconic game system wasn’t exactly built for such a task. Its 2 MHz CPU and 160×144 pixel dot-matrix screen were every kid’s dream in 1989, but using it as a car dashboard is pushing it. To bridge that gap, [John] designed two custom circuit boards.
One interfaces with the Game Boy, intercepting its memory requests and feeding it data from a microcontroller. The other processes the CAN bus signals, translating speed information into a form the Game Boy can display. [John] used inexpensive tools and software to read the CAN bus data, and used GBDK-2020 to write the software in C.")
Hob gestern moi ogfangt a 
