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Five small blue servos and a green circuit board with pin headers

Melcan

Melcan SG90 9G Micro Servo 5pcs with PCA9685 16-Channel Driver hobby collectible

SKU CH-KDG7-BHFKC

Kit includes five SG90 9G micro servos and a PCA9685 16-channel IIC driver board for Arduino or Raspberry Pi projects

  • Five micro servos for multi-joint motion
  • PCA9685 driver controls 16 channels via IIC
  • Each servo delivers 1.5 kg/cm torque at 4.8 V
  • 12 sec/60° speed enables responsive movement
  • 220 ohm resistors on all PWM outputs protect circuits

Micro servo kit with 16-channel driver

This kit contains five SG90 9G micro servos and a PCA9685 16-channel 12-bit PWM driver module. It is intended for hobbyists building RC models, robot arms, or automated projects with Arduino or Raspberry Pi platforms. The package provides multiple actuators and a single controller for coordinated movement.

Torque and speed limits per servo

Each servo delivers a stall torque of 1.5 kg/cm or 17.5 oz/in at 4.8 V with a no-load speed of 0.12 seconds per 60 degrees. Operating voltage spans 3.0 V to 7.2 V, while the driver board accepts a DC 5 V to 10 V supply. The 120-degree rotary angle and 7 µs dead band define the positional range and precision.

IIC driver simplifies wiring for many servos

The PCA9685 module communicates over an IIC interface, allowing 16 servos to be driven from two microcontroller pins. All PWM outputs include 220 ohm series resistors for protection and can also drive LEDs. The driver measures 25 mm by 61 mm and each servo measures 23 mm by 12.2 mm by 29 mm, fitting compact chassis designs.

Highlights

  • Five micro servos for multi-joint motion
  • PCA9685 driver controls 16 channels via IIC
  • Each servo delivers 1.5 kg/cm torque at 4.8 V
  • 12 sec/60° speed enables responsive movement
  • 220 ohm resistors on all PWM outputs protect circuits

Specifications

No published specifications for this item yet.

Questions about this item

Will the 16-channel PCA9685 driver let me keep using my existing 5 V Arduino Uno without a logic-level converter?

The PCA9685 driver communicates over IIC and accepts a DC 5–10 V supply, so it can run directly from a 5 V Arduino Uno without any extra level-shifting hardware.

How can I verify the SG90 servos are moving at the rated 0.12 s per 60° after wiring everything up?

Send a 60° position command at 4.8 V and measure the transit time; the spec lists 0.12 second per 60° at 4.8 V no load, so matching that figure confirms normal operation.

Does the kit include servo horns, mounting screws or a separate 5 V power supply for the driver board?

The package contains five SG90 9G micro servos and one PCA9685 16-channel driver board only; horns, screws and an external DC 5–10 V supply must be sourced separately.

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