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.

Hiletgo 2pcs Pca9685 16 Channel 12 Bit Pwm Servo Motor

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Description

🤖 Power Your Next-Level Robotics with Precision & Protection!

PLUG PLAY READY - Pre-wired 3-pin connectors and clear polarity markings make setup effortless and error-free.
CASCADE FOR EXPANSION - Modular cascade design lets you stack multiple modules for scalable, complex projects.
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 for ultimate robotics precision.
ROBUST VOLTAGE FLEXIBILITY - Operates seamlessly within a 5-10V DC range, ensuring compatibility with diverse power setups.

The HiLetgo PCA9685 module is a compact 16-channel, 12-bit PWM driver designed for Arduino and robotics projects. It supports a wide 5-10V DC input, features built-in 220Ω resistors for output protection, and offers easy IIC communication with plug-and-play connectors. Ideal for professionals seeking scalable, reliable servo control with robust safety and flexibility.

Specifications

ASIN	B07BRS249H
Best Sellers Rank	#26,651 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Motor Drives
Date First Available	March 30, 2018
Item Weight	0.915 ounces
Item model number	3-01-1070-2pcs
Manufacturer	HiLetgo
Package Dimensions	4.8 x 3.27 x 0.91 inches

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