MG90S Servo Motor

• MG90S – Metal Gear Micro Servo Motor
• To make this motor rotate, we have to power the motor with +5V using the Red and Brown wire and send PWM signals to the Orange colour wire. Hence we need something that could generate PWM signals to make this motor work, this something could be anything like a 555 Timer or other Microcontroller platforms like Arduino, PIC, ARM or even a microprocessor like Raspberry Pie.
• 2.2kg/cm torque comes with the MG90 Motor. This 2.2kg/cm torque means that the motor can pull a weight of 2.2kg when it is suspended at a distance of 1cm. So if you suspend the load at 0.5cm then the motor can pull a load of 4.4kg. Based on the load which you use in the project you can select the motor with proper torque

MG90S Wiring Description

• Pin 1(Brown) Ground wire connected to the ground of system
• Pin 2(Red) Powers the motor typically +5V is used
• Pin 3(Orange) PWM signal is given in through this wire to drive the motor

Applications

• Used as actuators in many robots like Biped Robot, Hexapod, robotic arm etc..
• Commonly used for steering system in RC toys
• Robots where position control is required without feedback
• Less weight hence used in multi DOF robots like humanoid robots