A pair of wires run out from the ring and connect to a printed coin cell holder. One thing we like about this build is the way that [ROBO HUB] handled the soldering of those tiny LEDs — by ...

Our commenteers have all said good things about the open-source TS100 soldering iron pencil: things like “it solders well”. But we’ve all got soldering irons that solder well. What possible ...

So, what's so smart about the soldering iron? For starters, how about automatic sleep mode, heat-resistant protective cap, a ...