7 DOF Small Robotic Arm with Control Kit and 7pcs Metal Gear Servos Aluminum Alloy Material for Arduino DIY Smart Robot Project

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$119.50$117.00 / piece
  • Black WiFi
  • Golden WiFi
  • Silver WiFi
  • Black Bluetooth
  • Golden Bluetooth
  • Silver Bluetooth
  • Black Handle
  • Golden Handle
  • Silver Handle
Quantity: - + 1000items available
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Item specifics

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Remote Control:
Version Type:
First Edition
Age Range:
> 6 years old
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In-Stock Items
Completion Degree:
Semi-finished Product
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7 degrees of freedom small mechanical arm parameters
Main body material of the mechanical arm: aluminum alloy
Weight: 0.64kg (including the weight of the steering gear)
Color: black, golden, silver
Servo: 5pcs large MG996R metal gear steering gears and 2pcs MG90S small metal gear steering gears
Features: The manipulator head can be equipped with a manipulator claw with a weight of about 500g;
the base of the manipulator can be rotated 360 degrees;
the chassis can be directly installed on the tank chassis of our store.

MG996R servo parameters

Dimension: 40mm × 19mm × 43mm    

Weight: 55g    

Operating Speed: 0.17sec / 60 degrees (4.8V no load)    

Operating Speed: 0.13sec / 60 degrees (6.0V no load)    

Stall Torque: 9 kg-cm (180.5 oz-in) at 4.8V    

Stall Torque: 12 kg-cm (208.3 oz-in) at 6V    

Operation Voltage: 4.8 - 7.2Volts    

Gear Type: All Metal Gears    

Color: Black  

Connector Wire: Heavy Duty, 11.81" (300mm) 

MG90S servo parameters

Pulling force: 1.6 kg/cm (4.8 V), 1.8 kg/cm (6 V)

Reaction rate: 0.10 sec/60 degree (4.8 V), 0.09 sec/60 degree (6 V)

Working voltage: 4.8-6.0 V

Size: 22.6*12.1*22.5mm

Cable length: 250 mm

Interface specification: JR / FP universal

Accessories: Multi-function swing arm, fixing screws

Scope of application: fixed wing, helicopter KT, small robot, robot model, etc.



Module pin description and schematic

16-way servo and four-way motor drive board, using TB6612 four-way drive, PCA9685 for 16-way servo control.

Bring out Arduino UNO I/O pins

Power supply maximum input voltage 15V/DC

Reserve Bluetooth & WIFI module socket

Reserved PS2 handle socket

Four-way DC motor drive, single-channel maximum drive current 1.2A average / 3.2A peak.

The 16-way servo drives the pins, and the power can be switched by the external/internal power supply of the jumper cap.


Product technical specifications

1.power input

Motor power supply (VM): 4.5V ~ 36V, can be powered separately.

Steering gear power supply (VIN): 5 ~ 18V, can be powered separately.

2.single power supply use

Open circuit VM and VIN, (separately control the motor, 6 ~ 36V).

Open circuit VS and VIN, separately control the servo (6 ~ 18V).

Short-circuit VM and VIN while shorting VS and 5V. Simultaneously control the motor (6 ~ 18V) and 16 5V servos.

Note: Blue and green are randomly distributed.



7 DOF arm support: 1 set (optional)
MG996R servo: 5 pcs
MG90S servo: 2 pcs
WiFi/Bluetooth/handle control kit: 1 set (optional)
A set of screws


For the convenience of transport, the robot arm is the bulk delivery. 



1. Due to computer monitor and the actual shooting brightness and other reasons, there will be  a certain color difference.
The final color please refer to our actual goods. Please know this before you buy it. Thank you !
2. The picture we show is  
100% Real  Object Photography.
3. The size may have 
 2-3cm  differs due to the maunal measurement.
4. For  the shipping convenience, the product is  unassembled .

1. Preparing Time: we need 2-5 working days to prepare your order according to our numerous orders every day.
2. Free Shipping for worldwide if you choose China Post.

The information of new tracking number for China Post Ordinary Small Packet Plus can not be tracked when it is shipped out of China. Whether it is arrived or not,it will no more tracking information.
Please choose China Post Air Mair if you want a full tracking information.
Tracking information of China Post Ordinary Small Packet Plus can be checked here: 


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