• 19 Posts
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Joined 2 years ago
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Cake day: June 12th, 2023

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  • This is one of the pain points of fitness tracking. There is nothing that supports everything because companies try their best to lock everything down for their own subscription fees and data sale profits outside of the basics that you can go through their servers for.

    Plus hyper-specific requirements per person make it difficult.

    Honestly probably some app that grabs data from every service you use would be best.

    Also good to note that that garmin’s “recovery time” is just a random thumb in the air educated guess specifically from hard workout to hard workout, not from workout to workout, and it is not a “rest period” but a period of “less than ‘intense’ workouts” and they have not allowed anyone to see their algorithm or do studies correlating its accuracy. That means it is not accurate.



  • I wish distributers in the EU were better…

    Mouser and digikey are fantastic.

    Every single European distributor’s website is utter chaos garbage as far as finding new components that fit within criteria (and have bad filters). RS and TME just don’t have many more specialized ICs (ECG AFEs, sensor hubs, PPG chips, hell, the STM (european) selection of mems sensors at TME is just flat out bad bad), and Farnell doesn’t sell to individuals, and also has a much smaller stock. So instead of paying shipping once at a distributer, we have to pay shipping 3, 4, 5 times for the same parts.

    This isn’t even going into trying to have an alternative for McMaster Carr, Misume is pretty bad in comparison as far as UX and selection.

    But I am already thankful that we have the alternatives we do.












  • Sodium ion batteries are going to be the solution. 18650 packs are already out and perform economically. Since the molecules are so much bigger, energy density is only like 60% of lithium based solutions, but they have a very wide temperature range and are incredibly more inert and safe and density isn’t a problem for bulk energy storage.

    The hurdle to overcome in inverters dealing with the very wide voltage span and bespoke charging ICs, but definitely possible and within 5 years will probably become a lithium iron phosphate competitor.