Research: Difference Between Synchronous and Asynchronous Communication

Microcontrollers have the ability to communication asynchronously and synchronously. With Synchronous communication, there is a wire between two communicating agents carrying the clock pulse so both microcontrollers can communicate using the same pulse. With asynchronous communication, there is no wire between the two microcontrollers, so each microcontroller is essentially blind to the pulse rate. Each microcontroller is told, using a baud rate, what speed to execute the communication.