BLE Joystick vs Gwtar Viewer

# BLE Joystick Transform your iOS Device into a professional Bluetooth Low Energy (BLE) device controller. BLE Joystick lets you connect to and control ESP32, Arduino, Raspberry Pi Pico W, nRF52, robots, RC cars, IoT projects, and other BLE-enabled hardware directly from your iOS device. Designed for inventors, engineers, students, and hobbyists, the BLE Joystick features a responsive dual-joystick gamepad interface with customizable buttons and real-time Bluetooth Low Energy communication. Features: • Scans and connects to nearby BLE devices • Directional control buttons • D-Pad (transmits custom character data via normal and long-press button presses) • 4 Action Buttons (transmits custom character data via normal and long-press button presses) • Real-time BLE data transmission • Adjustable update rate • Game-style dark user interface • Haptic feedback support • Low-latency communication • Compatible with ESP32, Arduino, Raspberry Pi Pico W, nRF52, and other BLE devices Use Cases: • ESP32 remote control • Arduino BLE controller • Robot controller • RC car controller • Tank controller • Servo controller • IoT device controller • DIY electronics projects • Home automation control • Educational BLE experiments Why BLE JOYSTICK? Unlike traditional Bluetooth controllers, BLE Joystick is optimized for modern low-power devices and embedded systems. It provides a simple and reliable way to transmit joystick and button data from your phone to microcontrollers and custom hardware. Access Permissions Bluetooth access is required to find, connect to, and communicate with nearby BLE devices. This app does not collect personal data and does not require a user account.

Gwtar Viewer opens Gwtar archives — self-extracting single-file HTML that packs a web page with all of its images and styles into one .html file. Gwtar files do not work when opened directly in a browser: they need a server that answers Range requests, fetching just the parts of the file that are actually needed. Gwtar Viewer runs a local server on your device to provide exactly that, letting the archive's own rendering logic do the rest. Your files are never modified. It also works as a viewer for ordinary HTML files, not just Gwtar. ■ Features - Open and read Gwtar files (.html) - Files you open are kept as history cards with thumbnails for quick reopening - Page zoom, remembered per file - Light / dark themes, English / Japanese UI - One-tap deletion of site data stored by archives ■ Privacy Everything happens on your device. The only network traffic is between the app and its own local server. Nothing is ever sent or collected externally. ■ Open source Gwtar Viewer is open-source software under the 0BSD license. See the support URL. The Gwtar format was designed by Gwern Branwen (this app is an independent implementation).