MG995 is a servo motor that is popular for its performance and low price. The motor is use in many applications mainly being robotics and drones and is a high-speed standard servo can rotate approximately 180 degrees (60 in each direction) used for airplane, helicopter, RC-cars and many RC model. Provides 10kg/cm at 4.8V, and 12kgcm at 6V.
MG995 Servo is a Digital Servo Motor which receives and processes PWM signal faster and better. It equips sophisticated internal circuitry that provides good torque, holding power, and faster updates in response to external forces and they are pack within a tight sturdy plastic case which makes them water and dust resistant which is a very useful feature in RC planes, Boats, and RC Monster Trucks etc. It equips 3-wire JR servo plug which is compatible with Futaba connectors too.
- RED – Positive
- Brown – Negative
- Orange – Signal
- Weight : 55g
- Dimension : 40.7 × 19.7 × 42.9 mm
- Operating Speed (4.8V no load): 20sec / 60 deg
- Operating Speed (6.0V no load): 16sec / 60 deg ( no load)
- Stall Torque (4.8V): 10kg/cm
- Stall Torque (6.0V): 12kg/cm
- Operation Voltage : 4.8 – 7.2Volts
- Gear Type: All Metal Gears
- Stable and shock proof double ball bearing design
- Dead band width: 5 µs
- Temperature range: 0 ºC – 55 ºC.
- Control System: Analog
- Operating Angle: 120degree
- Required Pulse: 900us-2100us
- The connection cable is thicker.
- Equips high-quality motor.
- High resolution
- Accurate positioning
- Fast control response
- Constant torque throughout the servo travel range
- Excellent holding power
MG995 Servo Motor Overview
Since MG995 is a servo motor providing precise rotation over 180º range its applications are many and in them a few are stated below
- The servo is suited for designing robotic arm in which wear and tear of motor is high. Being metal geared, the servo has long life and can be installed on system like robotic arm were motor work is huge.
- The servo is also suited to be used in drones and toy planes. Having a satisfying torque which is enough to overcome air resistance and control wings of plane, the servo is preferred in toy planes and drones which need precision control no matter the condition.
How to use MG995 Servo Motor
First let us consider the circuit connection of servo as shown below. Here the Red wire is connect to +5V regulate the power which can deliver current up to 1Amp, Brown wire is ground and Orange wire is connect to PWM (Pulse Width modulation) output of a microcontroller. In the circuit if microcontroller and servo has different power sources then the microcontroller ground need to be connect to servo ground.
Now for controlling of servo there are only two important things to remember:
- Frequency of PWM: MG995 takes in PWM signal of frequency 50Hz and any higher and lower frequency PWM will lead to error. As shown in figure the every single cycle of PWM needs to be 20ms width for 50Hz frequency.
- Duty cycle of PWM: The duty cycle of PWM (or ratio of ON time to total cycle time) determines the position of servo axis. If we provide a PWM signal of 0.5ms ON time over 20mS complete cycle, the servo axis will move to 0º.
So, In this way we can control the servo position using PWM signal of any microcontroller or processor. In arduino and other development boards we will have libraries readily available to make it even easier to control the servo. If we use those libraries we can directly state the servo position instead of adjusting the PWM duty cycle every single time.
- Drones and RC planes
- Security camera
- Solar tracking and positioning
- Door lock and safe locks
- Hobby projects
1 x MG995 Servo Motor (Metal Servo Motor)
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