'Tis the season...to sumo!

Here's a little makeover of an inexpensive aftermarket heated car seat heating pad that stopped working. Designed to activate and warm up when sat upon, the electronics face a fair amount of abuse: since the seat is a soft frame, the wires inside constantly move and flex with the body. They are also subject to […]

Yeeks! Jeez, it's snuck up on me too... If you want to get your favourite solder-geek a new project for Christmas, keep in mind that our deadline for shipping is approaching. For US orders, your option is Purolator/DHL Courier (2 business days, so Wednesday the 21st by 2:00pm MST at the latest!). Domestic (Canadian) orders […]

Autumn! Time to gather your nuts, seeds and berries and hunker down for the winter, and warm yourself by the warmth given off by your …new 3D printer. Either as a tool to build your holiday decorations & cookie cutters, or as a gift to your favorite geek or geeklet, NOW is the time to […]

This circuit is used to create a simple "edgebot" sumo robot. Being an edgebot refers that it will repeat the same backup/turn/go forward action when it's single edge sensor detects the edge of the ring. This version of the circuit is quite simple, and always turns the same way.