Set of 4 roll pins. We often use these with our #25 sprockets to mount them to the motor shaft.
Use these roll pins to fix sprockets to a shaft and keep them locked in place.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.
Open Box - The MGS1600GY is a sensor capable of detecting and reporting the position of a magnetic field (typically magnetic tape on the floor) along its horizontal axis. with custom aluminum mounting bracket