Momentary SPDT Lever Switch made by Tamiya. Works well as a bumper switch on you robot. Set this switch to turn on when the switch lever is depressed and turn off when the lever is released, or set it up the opposite way. The switch is about 3/4" long, 1/4" thick. It is about 9/16" wide compressed and about 3/4" wide with the lever extended (width includes the posts).
This is a Single Pole Double Throw two position switch.
These large Tiller Traction Lug wheels are 13" in diameter. They come as pair and have steel 5/8" diameter shafts and bearings.
Beacons are mounted on walls or ceilings to measure distance to other beacons and “hedgehog” using ultrasonic pulses. They communicate with router wirelessly in ISM band. Powered by LiPo battery or USB. Indoor Positioning System (IPS)