BLDC Shield for Arduino withTLE9879QXA40is designed to drive BLDC motors in combination with an Arduino compatible baseboard. The Shield is flashed with several motor control algorithms (sensorless FOC, Back EMF, hall sensor based block commutation), and it is controlled from the baseboard via SPI. Additionally, it has a 3x2 pin strip to easily connect the Hall pins of an electric motor. It also allows the user to easily change the motor parameters of the motor control algorithms. The whole dataset of parameters can also be saved and loaded from the flash memory of the Shield or written and read from the Arduino. Besides, the Shield has an RGB LED, which can be controlled by the user. Lastly, NANOTEC DB42S03 and Trinamic QBL4208-41-04-006 motors are recommended for our Arduino Shield. The stackable active BLDC Shield can be used in a wide spectrum of applications such as 3D-printer, multi-axis CNC-milling machines, construction robot arms, multi-copter and other RC applications, side-mirrors, HVAC-flaps, right-regulation, wiper andseat control.