QR Pro vs Bluetooth LE Thermometer

QR Pro is a fast, ad-free, privacy-first QR code and barcode scanner, generator, and library for iPhone, iPad, Mac, Apple Watch, Apple TV, and Apple Vision Pro. No ads. No subscriptions. No tracking. No personal data collection. Scan codes with the camera, choose an image from Photos, or drag and drop. Create QR codes and barcodes, save important items to your library, and keep them available across supported Apple devices with optional iCloud sync. Scan: • Read QR codes, barcodes, Aztec, Data Matrix, PDF417, UPC, EAN, ITF, Code 39, Code 93, and Code 128 • Scan with the camera, from Photos, image files, or drag and drop • Preview code contents before opening links or actions • Use widgets and controls from the Home Screen, Lock Screen, Control Center, or Action Button Create: • Generate QR codes for links, plain text, Wi-Fi, email, phone numbers, and messages • Contact cards, calendar events, locations, and more • Share links, text, and images to QR Pro to create codes • Save generated codes to your library Share and Export: • Copy, share, print, or export as images, PDFs, and SVG when supported • Expand full screen for easy scanning from another device • View raw contents when needed Library and Sync: • Keep scans and generated codes in one place • Find and reuse saved items later • View saved codes on Apple Watch and Apple TV • Optional iCloud sync across iPhone, iPad, Mac, Apple Watch, Apple TV, and Apple Vision Pro Privacy: QR Pro does not track you or collect personal data. Your scanned and saved codes stay on your device unless you choose to use iCloud sync. If you enjoy QR Pro, please leave a review, share it with friends, and explore our other privacy-first apps.

The Bluetooth LE Thermometer App connects to a Bluetooth low energy thermometer hardware device. The app updates temperature in real-time. The app currently has a thermometer view and a graph view. For the app to work, the device should transmit temperature readings over serial via an AT-09 or similar BLE device with a "\r\n" termination string. The AT-09 is popular for DIY projects where hobbyists could make their own devices and use apps like this one to test it. You can make your own device using an Arduino or similar microprocessor, with an AT-09 or similar BLE device. You can use an existing device if it uses similar internal hardware and data string. If you find that a device does not work with our app, let us know what device it is, and we'll either update our app to support it or add it to the unsupported list.