TinyCircuits ASL2001 TinyLily Arduino Compatible Wearable Motor Board £4.68 @Rapid Online – Rapid Electronics Ltd.
TinyCircuits ASL2001 TinyLily Arduino Compatible Wearable Motor Board
TinyLily Arduino Compatible Wearable Electronics Collection – TinyCircuits ASL2001, The TinyCircuits TinyLily wearable motor driver board uses the world’s smallest DC motor driver chip on a board that is only 1.41mm (0.056 inches) high. Based around the TI DRV8837 H-bridge motor driver IC this board is incredibly tiny at only 10mm in diameter, yet can drive a 5V 1.8A motor! The DRV8837 is easy to use and interface to your favorite processor board such as a TinyDuino, TinyLily or a standard Arduino. It uses PWM from the Arduino analogWrite() function to control motor speed, direction, coasting and braking. The board includes suppression (bypass) capacitors to reduce noise and all the signals of the DRV8837 are brought out to sewtabs. Heatsinking the chip to a large plane on the bottom side of the board helps with heat dissipation. The TI DRV8837 has one H-bridge driver consisting of N-channel power MOSFETs to drive a DC motor, one winding of a stepper motor or other devices such as solenoids. There are internal shutdown functions for overcurrent, short-circuit and over temperature protection and it also has undervoltage lockout. It operates on a motor power supply voltage from 1.8 to 11V DC, and a device power-supply voltage of 1.8 to 7V DC. There is also a extremely low power sleep mode which only uses 120nA. The chip can generate a lot of heat with higher currents and voltages so be sure that the heatsinking is adequate for your project. TinyCircuits ASL2001 TinyLily Arduino Compatible Wearable Motor Board