RS232 – Types and Working
Introduction RS232 (Recommended Standard 232) is a standard for serial communication that has been widely used for connecting computers and peripheral devices. Despite being an older technology, it is still rel…
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1D vs 2D vs 3D Barcode Scanners
Barcode scanners are optical data capture devices used across POS systems, warehouses, healthcare, logistics, manufacturing, and access control. This article explains:Differences between 1D, 2D, and 3D barcode …
RS-232 and Serial Communication Ports (COM Ports): History, Standards, Variants, Connectors, Pinouts, Protocols, and Modern Applications
Before USB, Ethernet, Wi-Fi, and Bluetooth became common, one technology dominated computer-to-device communication: RS-232 Serial Communication, commonly known as the COM Port. For decades, RS-232 was the univ…