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.

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🤖 Elevate your DIY robotics game with precision and power!

BUILT IN SAFETY - Each PWM output line includes a 220Ω resistor for robust protection, preventing damage and extending component life.
PLUG PLAY POWER - Supports a flexible 5-10V DC power supply, ensuring compatibility with a wide range of Arduino projects and setups.
COMPACT EFFICIENT - Sleek 25x61mm design with centralized PCA9685 chip and clear power indicators for streamlined, clutter-free builds.
MASTER YOUR ROBOTICS - Control up to 16 servos simultaneously with precision 12-bit PWM resolution for smooth, professional-grade motion.
SEAMLESS INTEGRATION - I2C communication interface enables easy daisy-chaining and expansion, perfect for complex multi-servo robotics.

The HiLetgo PCA9685 16-Channel 12-Bit PWM Servo Motor Driver is a compact, versatile I2C module designed for Arduino robotics projects. It supports up to 16 servo motors with precise PWM control, operates on a 5-10V DC power supply, and features built-in 220Ω resistor protection on all outputs for durability. Its cascade design and clear power indicators make it an essential component for professional-grade multi-servo control.

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Manufacturer	HiLetgo
Part number	3-01-1070-2pcs
Item Weight	26 g
Package Dimensions	12.2 x 8.3 x 2.3 cm; 26 g
Item model number	3-01-1070-2pcs
Size	S
Colour	Blue
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No

HiLetgo 2pcs PCA9685 16 Channel 12-Bit PWM Servo Motor Driver IIC Module for Arduino Robot

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