SparkFun RedBot Sensor - Mechanical Bumper Other, Proximity, Sparkfun Originals Vitamins & Dietary Supplements They are ASIC based and

They are ASIC based and have limited computational power

one of which is to use it is a mini solar cell to power your project

we recommend purchasing the Arduino Uno board that has all of these built into the board

Lots of application notes and support on Nordic Semiconductor Website

Color temperature:6000K-6500K

SparkFun RedBot Sensor - Mechanical Bumper Other, Proximity, Sparkfun Originals Vitamins & Dietary Supplements They are ASIC based andThese simple switches are the Mechanical Bumper sensor for the SparkFun RedBot, giving you the ability to detect a collision before it really happens. This sensor works by acting as a SPST switch. When the whisker bumps into a foreign object it will make contact with a nut next to it, closing the connection and, by default, turning off the motor. By attaching these mechanical bumpers to you robot the whisker will bump something before your robot