GM11 is a popular motor

Here we go, it’s the W day again. Seems like the previous one was two infinities ago. During that infinite time we had plenty of opportunities to pick the interesting stuff floating around internets, and bring it to you: Headphone Light Show EL (electroluminescent) wire is a cool thing. Add it to the headphones and […]

Want a bumble-bee look to your robot tank? Intersperse our new GMT-Yellow treads into the link chain! You should even be able to use a yellow link as a opto-reflector in a wheel (err...tread?) encoder circuit. ALSO, we're the only place in North America you can get these new yellow tread links!

Grove - 4 pin Female Jumper to Grove 4 pin Conversion Cable (5 PCs per Pack) $4.95 4 Pin jumper wire for easy Grove-to-Arduino connections. Infrared LED Emitter $0.50 Standard sized T1-3/4 infrared emitting LED. Raspberry Pi Relay Board v1.0 $29.40 The Relay Shield contains four high quality relays and provides NO/NC connections to control […]

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.