What library do you need for the Arduino to control this? Any sample code?

Limor Fried wrote a lib and posted it to github: https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library

V+ at the terminal block is not directly connected to V+ on the rest of the board. How do I get actual power to the servos?

No the V+ of terminal block goes through a tiny transistor but since it does not turn on, you would have to mod the board to get power to servos from that terminal. Others just input to the pin near VCC labled V+

What are the peak amps for this board?

Each of the 16 outputs is limited to about 25mA. That would make the total current capability of the board no more than 400mA.

2pcs Pca9685 16 Channel 12 Bit Pwm Servo Motor Driver

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Description

🤖 Unlock next-level servo control — 16 channels, zero limits!

COMPACT EFFICIENT - Small 25x61mm footprint with a central PCA9685 chip, ideal for space-conscious makers and professionals.
ROBUST POWER HANDLING - Supports a flexible DC 5-10V power supply ensuring stable and reliable operation under varied conditions.
BUILT IN SAFETY RESISTORS - Each PWM output line includes a 220Ω resistor to protect your LEDs and servos from damage.
MASTER 16 SERVOS WITH EASE - Control up to 16 servo motors simultaneously via IIC interface, perfect for complex robotics projects.
PLUG PLAY CASCADE DESIGN - Easily expand your setup with a cascade-friendly layout and convenient 3-pin connectors for quick servo integration.

The HiLetgo PCA9685 module is a compact, 16-channel 12-bit PWM driver designed for Arduino and robotics applications. Featuring IIC communication, a wide 5-10V power range, and built-in 220Ω resistors for output protection, it enables precise and safe control of multiple servos or LEDs. Its cascade design and plug-friendly connectors make it a must-have for advanced makers seeking scalable, reliable servo management.

Specifications

ASIN	B07BRS249H
ASIN	B07BRS249H
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#4,245 in Computers ( See Top 100 in Computers ) #24 in Single-Board Computers
Color	Blue
Customer Reviews	4.5 4.5 out of 5 stars (293)
Customer reviews	4.5 4.5 out of 5 stars (293)
Date First Available	24 May 2018
Date First Available	24 May 2018
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	26 g
Item model number	3-01-1070-2pcs
Item model number	3-01-1070-2pcs
Manufacturer	HiLetgo
Manufacturer	HiLetgo
Package Dimensions	12.2 x 8.3 x 2.3 cm; 26 g
Package Dimensions	12.2 x 8.3 x 2.3 cm; 26 g
Part number	3-01-1070-2pcs
Size	Small

Reviews

H**H

Great

8.01.2026

D**E

16 channel servo driver

8.05.2024

A**E

Top Notch Costumer Service.

11.09.2018

C**R

Labeled and color coded nicely. A little more expensive but works as expected

1.08.2022

J**U

Quality Product and Timely Delivery

11.03.2024

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