A Game Boy Speedometer, just because you can.
The “world’s worst digital dash”, a Nintendo Game Boy as a digital speedometer. Interfacing the handheld with the vehicle’s CAN bus system, this project has something to offer.
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.")
Everything was going well up to this point "Chapter 5". Got a little more complicated with callbacks and reducers and there's a definite bug with the original code.
Could be due to my version of react/node.js so I'll give it a pass
#programming #web #react #node #javascript
(comment on React Projects - Second Edition)
Always wondering why so many actual #progamming languages need #metadata inside their code.
This seems a subtle case of asking myself: "why did I do that?"
I guess now that after I added threading, so that the GUI would not just lock up while a process was run, I wanted to protect my user (myself) from confusion about what was running.
But perhaps I had some deeper more important reason?
Sometimes programming is a matter of blundering along, and just relying on being able to rewrite things (again) if I've headed down a wrong path - about what the program is and does.
#Progamming
...when contmeplating ones own existence while #progamming 
Hey everyone, I'm Tharush!
I'm a big fan of #Movies . I'm also really interested in #Gaming, #linux, #progamming. I'm new to Mastodon (Okay technically that's a lie
. I do have used mastodon before with another account and I created this one while back), and I'm excited to connect with people who share similar interests.
I'm excited to:
Discover interesting content on Mastodon.
Have meaningful conversations with others.
Learn and grow from the experiences of others(Yes I am talking bout you guys
).
Hi 
, it's #introduction time!
I'm Zizaco! I live somewhere in Europe helping people build reliable #software. I love to write code and explore new tech.
>15 years working in #tech. An unexpected journey took me through software engineering, product ownership, engineering management, and now solutions architecture.
I'm a hobbyist #gamedev in my spare time!
Enjoyments: #PCGaming #progamming #webdev #rpg #music #metalcore #cinema #art #drawing #painting #psicology
