Thanks! I’ve studied this option and Pi5 needs 5A/5V. I haven’t found something adequate yet for that power requirement. So I’m actually considering going for a Pi4 instead.

I didn’t take it as throwing shade :) I just thought I’d provide more context, though reading it back now it looks more like a rant.

Another person here pointed me to the Crankshaft too. It looks cool but it still uses a phone. I’ll try to erase this silicon slab from the equation entirely. From my personal experience over the years, phones have become a hindrance more than a supportive gadget.

I think i’ll go ahead and give it a try. I just need to figure out a way to cool the device properly in a hot environment.

Yeah, possibly, I might be a contrarian but I’m tired of cloud services, subscriptions, big corporations. I’m also tired of multipurpose devices that do plenty of things poorly. I just want a screen that shows me how to get somewhere, reliably. My phone from two years ago simply stopped being recognized by the car, bought a new one for that single purpose, and this fella already crashes too.

I didn’t go crazy on the budget but it worked initially and now it doesn’t at all so I’m tired of this bad tech. If I build my own, my hope is that I can make it more resilient and easier to repair/fix.

Yeah, that’s one thing still on the drawing board. The reason my phone crashes seems to be thermal throttling due to heat buildup with use. That’s another reason I want to build my own device instead of buying one from some company, I can factor in the cooling and try to adapt to the hot environment better.

That’s the thing, the phone never crashes otherwise. I don’t really use it anyway because I have zero use and interest for phones, it’s a device I have for 2FA, emergencies and satnav. My current one I bought 20 months ago at 230€. Fairly cheap, but not the cheapest either. In that short span of time, Waze had a total of 3 bad updates that forces me to go back to Google Maps until they patched it.

The whole reason behind the project is to get rid of the phone factor because it simply is unreliable. If not for the fun side of the project, I’d simply get an old school GPS that goes on the cigarette lighter.

I thought of a Pi because that’s the established brand, but if something else works just fine, then I might just go for it.

From some troubleshooting I made, apparently my phone heats up in the car because it automatically charges. The lower the battery, the harder it wants to charge and the more heats it generates. However, it doesn’t shed excess it fast enough so there’s a buildup until it crashes.

My car is, indeed, pretty hot. Getting a built device might solve it, or not, or temporarily until the device gets older, depending on the thermal management. Making my own device lets me handle it the way I see fit and go nuts on cooling if I want to.

I’ll take a look at the OSM screen update settings, that might actually help!

I have zero experience tinkering with cars so my first draft for power was simply a huge powerbank or two. In my use case, the device is meant for use when I drive alone, and when that’s the case it’s mostly very short trips of maximum 1 hour with standstill traffic, but more often than not max 30 minutes. Down the line I might improve the system and wire things more permanently but I need to build confidence first.

I was also looking at using the cigar plug for power, potentially, but I like the idea of a self sufficient, removable portable device.