Victor Celer

Emulate a communication device, like a modem, featuring the AT command set, also known as the Hayes command set, and the GSM AT command set. The AT interface can be accessed through the console, a TCP or telnet connection or a virtual COM port. The AT commands are typically used to interact ... [More] with phones, modems and other communication devices. Most GSM/3G/LTE/5G modems implement the AT command set over a serial port interface, for example: RS232 or USB. The AT Emulator can be useful to test various communication software, which require a physical modem device. If a physical modem is not available the AT Emulator can come in handy. You can play with the emulator without risking to damage the real device. Therefore, the emulator can be used as an AT tester tool as well. [Less]

Free minimalistic Java library, which can be used to interact with external devices over COM ports, for example: USB, virtual COM. The library has no external dependencies. Native drivers are included for 32-bit and 64-bit Windows and Linux. A pure Java driver is available as a fallback for other OS and architectures.

CelerXML is a lightweight open-source Java library implementing the standard XML parsers: Simple API for XML (SAX and SAX2) and Streaming API for XML (StAX). It can be used as a drop-in replacement for other XML processors, without recompiling the user Java application source code.