Abstract PC Meter Connect refers to the systems, software protocols, and hardware interfaces that enable a personal computer to communicate with external measurement devices—such as digital multimeters, energy meters, USB testers, and sensor modules. This paper provides an overview of how physical meters connect to a PC, the common connection methods (USB, Bluetooth, Wi-Fi, GPIB, serial), the software layers involved, and typical applications in education, electronics testing, home energy management, and industrial automation. 1. Introduction In modern data acquisition and analysis, standalone meters (e.g., voltmeters, power meters, clamp meters) are often insufficient for logging trends, automating tests, or integrating with other systems. “PC Meter Connect” solves this by enabling bidirectional communication between a meter and a computer. The PC can read real-time measurements, configure meter settings, log data over time, and trigger alerts based on thresholds. 2. Connection Technologies | Interface | Typical Speed | Range | Best For | |-----------|--------------|-------|-----------| | USB | 12–480 Mbps | 3–5 m | Benchtop meters, power monitors | | Bluetooth (BLE) | ~1 Mbps | 10–30 m | Portable meters, quick logging | | Wi-Fi / Ethernet | 10–100+ Mbps | Room/global | Remote monitoring, smart energy | | Serial (RS-232) | 115.2 kbps | 15 m | Legacy industrial meters | | GPIB (IEEE-488) | 8 MBps | 20 m | Lab automation, multi-instrument |