By Brian Kostecka and Michael Jackson
The first blog in this series showed how to overcome the problem of jerky motion caused by conventional stepper motor controllers in pan-tilt-zoom (PTZ) surveillance cameras. Unfortunately, stepper motors also ha...
by Richard Anslow and Michael Jackson
The first blog in this series described the benefits encoders bring to closed-loop control motor applications and looked at the relative advantages and disadvantages of optical and magnetic transducers. This blog...
The core principle of secret key cryptography is to use a shared secret key between two parties to encrypt and decrypt messages. The same key is used to scramble and unscramble messages so that only the intended recipient can read them. This is done...
