Standard Metal Servo (MG945)

This high-torque standard servo now comes in a metal-gear flavor, for extra-high torque (10 kg-cm!) and reliability! It can rotate at least 180 degrees (90 in each direction) with a classic 1.5-2.5ms pulse. You can use any servo code, hardware or library to control these servos. 

To control with an Arduino, we suggest connecting the orange control wire to pin 9 or 10 and using the Servo library included with the Arduino IDE. Position "0" (1.5ms pulse) is middle, "90" (~2ms pulse) is all the way to the right, "-90" (~1ms pulse) is all the way to the left.

The default servo pulse widths (usually 1ms to 2ms) may not give you a full 180 degrees of motion. In that case, check if you can set your servo controller to custom pulse lengths and try 0.75ms to 2.25ms. You can try shorter/longer pulses but be aware that if you go too far you could break your servo!

NOTE: Operating servos close to or at stall torque reduces their life and will permanently damage them beyond repair.

Specifications

• Weight: 55g
• Dimension: 40.7mm X 19.7mm X 42.9mm
• Stall Torque: 10 kg-cm (4.8V); 12 kg-cm (6V)
• Operating Speed: 0.23sec/60degree (4.8V); 0.2sec/60degree (6.0V)
• Operating Voltage: 4.8V ~ 6.6V
• Gear Type: Metal gear
• Temperature Range: 0℃ - 55℃
• Dead Band Width: 1us
• Servo Wire Length: 32cm
• Current Draw at idle: 10mA
• No Load Operating Current: 170mA
• Stall Current: 1.2A
• Servo Arms and Screws included

Resources

Datasheet

Library

Sample Code

Tutorial