Posts tagged with “electronics”

I finally tried using a stencil for soldering SMD components—and wow, total game changer. Ordered my URU Card PCBs + stencil from PCBWay, applied solder paste, placed the parts, hit it with hot air… and boom, working device in under 30 minutes. Bonus: I filmed the whole process in a quick tutorial!

I hooked up both the MH-Z19B and CCS811 CO₂ sensors side by side and logged data for a full week. The results? They mostly follow the same trends—but actual readings vary wildly, sometimes by 1000+ ppm. Which one’s accurate? Hard to say without a calibrated reference…