• 5 Posts
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Joined 1 year ago
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Cake day: June 14th, 2023

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  • Garmin Explore has a bit of a learning curve but offers a variety of very good maps and (once you’ve discovered where the web developers have hidden them) tons of nifty features. One of them is waypoints: you stick a flag somewhere and can give it a name, icon and colour. That sounds like the thing you’re looking for.
    The downside is that it’s made for outdoor stuff so you get street names and some POIs, but no turn-by-turn navigation.

    I use the website (https://explore.garmin.com/) to plan my tours and import/manage GPX files, and the Android app and an inReach 2 Mini satellite messenger while underway. The three sync seamlessly.

    Since I have a paid subscription (required for satellite access) I can’t tell you what (if anything) you get for free, but it should be relatively easy to find out if you think it might be what you’re looking for.

    For car navigation I used TomTom Go - it costs something but the quality of POIs and navigation is far superior to Google Maps in my experience. You can also add your own locations but have to do it on the phone by hand.
    In my new car I use Google Maps because it came with the car and there’s no real alternative at the moment. I do miss my TomTom app.







  • Our small town is in the process of putting up 30km/h traffic signs everywhere except for some through roads. I don’t expect much to change - pretty much nobody drives faster than that in a residential area with lots of curves and small kids anyway - but making it official is an overdue step.

    Now we just need to enforce some basic traffic laws for bikes as well and using the roads is going to be a lot more pleasant for everybody.







  • Little space + no copper data connections next to power cables leave little choice but fibre.

    That’s the thing. If I add anything else the house won’t pass the periodic electrical inspections.

    For an EV we’re probably talking 11 or 22kW, so a rather thick cable. But you’re probably going to have it installed by a certified electrician anyway, or can you do that yourself in Germany?


  • Hmm, Lemmy or Jerboa appears to have eaten my lengthy reply, so here we go again:

    My aim is to have my router/firewall, mail server and VM host in the shelter, as it’s the most protected room in the house. That means I need at least two lines - one from the modem to the router/firewall, and one connecting everything to the internal LAN.

    The internet connection is rated 400Mbit synchronous with the option of upgrading to up to 25Gbit, though at present I can’t imagine us ever needing that much and it’s probably more of a marketing gimmick anyway, so that line isn’t as critical, throughput-wise.

    The rest of the house is currently a copper Gigabit affair, though the cabling is Cat7 and capable of more, so I wouldn’t want the fiber to be the bottleneck when we upgrade to 10Gbit a few years down the road. Hence multimode looks like a good idea. The question is whether (and how) there’s a way to cut, install and connect it myself. POF would be easier but comes with a number of question marks concerning 10GbE.









  • As I said, it depends. There are inverters made specifically to be connected to PV panels, and there are inverters made for a fixed input voltage that you connect to a battery (the DIY store kind are usually the latter).

    Though if you want to build a self-contained PV system without having to think about it too much, you’re probably best off with an all-in-one device where you can just plug in your panels, your battery and your devices and let it worry about the rest.

    There’s another aspect, and I sadly lack the technical vocabulary here, but basically what you want to do for optimum efficiency is to convert the voltage as few times as possible. So: panels–>inverter–>load resp. panels–>charger–>battery, but not panels–>charger–>inverter–>load. The latter decreases your general efficiency and introduces roughly twice the losses.
    The charger may also reduce its power output to much less than what the panels could deliver once it thinks the battery is full.

    But then again, it all depends on your use case: where you use the system, what the environmental conditions are, and of course what your budget is. There simply is no one-size-fits-all PV system. You may not even need an inverter if all you want to do is charge your phone and laptop.