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Line 44: ==Communications and user interfaces== Communications interfaces vary depending on the age of the microcontroller system. Early systems might implement a [[serial port]] to provide [[RS-232]] or [[current loop]]. The serial port could be used by the application program or could be used, in conjunction with a monitor ROM, to transfer programs into the microcontroller memory. Current microcontrollers may support [[USB]], wireless networks ([[Wi-Fi]], [[~~ZigBee~~Zigbee]], or others), or provide an Ethernet connection. In addition, they may support a [[TCP/IP]] protocol stack. Some devices have firmware available to implement a Web server, allowing an application developer to rapidly build a Web-enabled instrument or system. == Programming ==

Single-board microcontroller: Difference between revisions