4PCS Coreless Micro Motor (7*20mm) Category_Grove (Arduino)/Grove Contatto These premium calipers come with

These premium calipers come with an extra battery and auto shut-off

086" mounting hole for a #2 screw

Boson Science Design Kit

The SD library for Arduino provides functions for accessing files and directories on an SD card

this breakout has a really cool IR sensor from TI that can measure the temperature of an object without touching it

4PCS Coreless Micro Motor (7*20mm) Category_Grove (Arduino)/Grove Contatto These premium calipers come withThese coreless motors are just right for guys who love to DIY drone models! Designed to be high performance and easy to wire, the motor can work properly at only 3. 7V voltage. The compact size of 7*20mm can burst with a strong power of 50,000rpm. Combining with propellers, the motors are good choices for DIY projects like remote control drones.