If your in need of some control for a machine or a process, using a Basic Stamp PLC may be just the ticket for speed of installation. Programming is well supported by Parallax with many examples and additional programming support provided by Black Sheep Technology. With a these PLC modules one can add analog to digital conversion modules to facilitate temp sensors or other analog data sources to provide feedback within a process. Outputs can be coupled to solid state relays for power control over loads or motors.