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Small green circuit board 65 by 30 mm with two rows of pin headers and screw terminals

NuoTo

NuoTo 16-Channel PWM Servo Driver 12-bit PCA9685 I2C 65x30mm

SKU CH-7DKR-FMQH9

A 16-channel PWM servo driver with 12-bit resolution over I2C, measuring 65x30mm and compatible with Raspberry Pi and Jetson Nano

  • CPU TypeOther
  • Control up to 16 servos with a single board
  • 12-bit PWM resolution gives 4096 steps per channel
  • I2C interface uses only two GPIO pins
  • On-board 5 V regulator supplies up to 3 A from battery
  • Compact 65 mm × 30 mm footprint fits tight builds

16-Channel PWM Servo Driver

The NuoTo board adds 16 independent PWM outputs to a Raspberry Pi or Jetson Nano using only two I2C pins. Each channel delivers 12-bit resolution for 4096 discrete steps. An on-board 5 V regulator supplies up to 3 A and accepts 6–12 V through the VIN terminal for battery operation.

Compact I2C Module with Standard Servo Headers

The 65 mm by 30 mm PCB mounts on 3.0 mm holes and presents standard three-pin headers compatible with SG90, MG90S and MG996R servos. Logic runs at 3.3 V while servo power stays at 5 V. Reserved I2C pins allow daisy-chaining additional boards without consuming extra GPIO.

Expands Limited Native PWM on Single-Board Computers

Builders whose projects exceed the Pi’s hardware PWM channels can drive walkers, arms or pan-tilt rigs without jitter. The jump is worthwhile when more than two precise servo positions are needed simultaneously and the 3 A regulator budget covers the servo load.

Highlights

  • Control up to 16 servos with a single board
  • 12-bit PWM resolution gives 4096 steps per channel
  • I2C interface uses only two GPIO pins
  • On-board 5 V regulator supplies up to 3 A from battery
  • Compact 65 mm × 30 mm footprint fits tight builds

Specifications

CPU TypeOther

Questions about this item

What does the 12-bit resolution on the PCA9685 mean for servo positioning?

The 12-bit resolution provides 4096 discrete steps per channel, allowing fine-grained position control across all 16 outputs.

What mounting holes does the 65x30mm board have for securing it in a chassis?

The board includes 3.0mm mounting holes for mechanical fixing.

How do I power the servos correctly — can I just use the Raspberry Pi 5V pin?

The Pi 5V connector alone cannot drive servos; connect a 6V–12V supply to the VIN terminal for servo power while the on-board regulator feeds logic at 3.3V.

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