How to control a large number of servos on Arduino?

Question

Arduino

You need the ability to connect 6+ 360° servos. The standard Arduino motor shields seem to hold two.

In principle, there is no need to manage all the servos at the same time.
Prompt please simple and inexpensive implementation.

Answer 1

One timer. State machine, sorted array. And at least 50 serv.
easyelectronics.ru/upravlenie-mnozhestvom-servomashinok.html

Answer 2

What does “low cost” mean to you? How much will it be in numbers?