Not content with their previous efforts, the people at rcarduino blog have demonstrated a method of controlling twenty servos using only four Arduino digital pins, the two timer registers and some 4017 logic ICs. These decade-counter ICs allow for throwing signals to each of the ten servos in sequence very quickly. However they have created a serial servo library to make coding simpler, and the whole project is very much convenient. Just the thing for making your own motorised creatures with ten legs, or a huge analogue display board.
For more information, click here for demonstration code and the Arduino library. And for more, we're on twitter and Google+, so follow us for news and product updates as well.