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kv4p HT is an open-source hardware VHF or UHF radio designed to plug into the USB-C port of an Android smartphone and turn it into a handheld ham radio transceiver. It’s based on an ESP32 wireless ...

Endpoint Detection and Response (EDR) is often a crucial part of a company's cyber defense, helping security teams detect and counter advanced persistent threats (APTs) and hidden attacks. EDR agents ...

I've been developing some apps with MQTT communications and have encountered a problem on Android with the Paho library. I had a couple of apps that were functioning fine until the latest update to ...

ABSTRACT: Geospatial technologies can be leveraged to optimize the available resources for better productivity and sustainability. The resources can be human, software and hardware equipment and their ...

Java, a popular programming language, has been powering various server-side and client-side applications for decades. Although Android devices are typically not designed to run Java applications ...

Abstract: This research aims to develop an interactive learning system based on Arduino Uno basic material. To realize this system, Augmented Reality technology is used which will explain each Arduino ...

I develop an app that perform MQTT operation and also interact with a Bridge(by connecting the bridge using wifi just like we connect some one's wifi). MqttException (0) - ...

android程序在我手机上总是崩溃，程序运行日志显示错误在以下紫色部分处，存在java.lang.nullPointerException异常，导致每次准备打开电灯时程序都会崩溃。 问了很多人都不知道该怎么解决，我刚刚接触android和arduino实在是没有办法了。希望各位大神能够帮帮我，谢谢了 ...