I tend to not really care for most new things, as most of it feels cheap, inauthentic or a scam to further the surviellance facist oligarchy state. Id be completely content with time frozen in 2004.

So, to be a little more positive, what are some new things that are actually good?

Note, to me, new is within the last 10 years.

I’ll start. The fediverse concept is neat.

  • JustEnoughDucks@feddit.nl
    0·
    12 hours ago

    So I am in the designing of the circuit and PCB stage right now.

    The usecase is for Meshtastic/Meshcore nodes because those sit outside in a tree or in a high place outside year-round and are solar charged. I am designing it as a RAKwireless Wisblock power module that will be charged by 2, 5V, 200mA small solar panels in series. The whole project will be released on Codeberg like all of my home projects.

    Later I can copy the circuit over to other PCBs for more general formats. One of my future projects is going to be an 8S pack BMS for driving a 12V water pump for off-grid rainwater collection barrels.

    I am targeting 2S systems now because then the entire sodium cell can discharge if the system voltage is set to 3V and I don’t need any buck/boost, just a buck which is significantly cheaper and easier on the batteries.

    I am using an STM32C011 as a custom BMS + buck charger because my original idea of using a very cheap, small mixed signal FPGA (greenpak SLG47105) wouldn’t work well for sodium because it didn’t have enough comparators to have a soft constant voltage region (gradually increasing CV voltage from 3.8V per cell to 4V along with the natural current decrease to prolong charge cycle life), it will have overvoltage/over current protections, 1A or 2A max current, resistive battery balancing, and some safety features and an I2C readout.

    (Sorry, wall of text)