LuminaSet Bluetooth Utility
BLE GATT Debugger & Scanner
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
New: per-device write history with pass/fail status, write to multiple devices at once, console filtering, and full GATT name resolution for services and characteristics.
Scan for nearby Bluetooth Low Energy peripherals and explore their services, characteristics, and device information. Built for firmware and hardware engineers who need to read, write, and verify GATT values quickly. Subscription required.
Write and read any characteristic
Write/Read characteristic values as strings, decimal numbers, or hex. With byte-order (big-endian / little-endian) and signed / unsigned interpretation for integer values.
Hex entry that formats into byte pairs as you type without losing your cursor position.
Read values from any characteristic, including custom and non-standard ones specific to your device.
Subscribe to notifications and indications per characteristic and watch asynchronous updates arrive live.
Built for repeat testing
Write history is retained per device, per service, and per characteristic: twenty devices running identical firmware each keep their own characteristic write log and also has write history for matching Service + Characteristic / identical devices.
Every write is timestamped and marked with its outcome, so you can see at a glance which values the peripheral accepted and which it rejected.
Tap any past value to resend it instantly.
Write to every connected device that exposes the same characteristic in a single action.
See what the device actually is
Service, characteristic, and descriptor names resolved from the Bluetooth SIG assigned numbers.
Manufacturer resolved from the SIG company identifier in the advertising packet.
Model number, serial number, and firmware, hardware, and software revisions read from the Device Information Service.
Real-time signal strength and advertising details for every nearby device, with proximity and unknown-device filters.
Console Log
Live console with detailed, timestamped events for every connection, read, write, and notification.
Filter the console by device, characteristic, UUID, or value to find one event among thousands.
Full-screen console on iPhone.
Export console output to a .txt file to attach to a bug report or share with your team.
Terms of Use (EULA): https://keois.com/products/luminaset/terms-of-use.html
Privacy Policy: https://keois.com/products/luminaset/privacy-policy.html
Who this is for
LuminaSet Bluetooth Utility is used by embedded firmware developers bringing up new hardware, QA and production-test teams verifying units before they ship, field engineers diagnosing deployed devices, and instructors teaching Bluetooth Low Energy. If you write firmware that exposes a GATT service, this is the tool for confirming it behaves the way you intended — before you write a companion app.
Moving from prototype to production
When you go from one board on a bench to a batch on a line, keeping track of which unit received what becomes the hard part. Write history is scoped to the individual device rather than to the characteristic UUID, so identical units never share a log, and each entry records the time and whether the peripheral acknowledged it. Devices that publish a serial number over the Device Information Service are identified by that serial. Broadcast writes let you push the same provisioning value to every connected unit that supports it in one action.
Supported devices
Works with any Bluetooth Low Energy peripheral, including development kits and modules from Nordic Semiconductor, Espressif, Texas Instruments, Silicon Labs, and STMicroelectronics, as well as commercial sensors, beacons, wearables, and industrial equipment. Requires Bluetooth LE hardware; classic Bluetooth and Wi-Fi devices are outside the scope of Core Bluetooth and will not appear.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Write commands to multiple identical connected devices simultaneously
- Write history expanded from 10 to 100 line items
- Write history exportable in .csv format
- RSSI signal strength timeline chart per connected device
- Filter Device Scan by Service UUID, Characteristic UUID
- Various improvements and optimization
The developer, devin sewell, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- devin sewell
- Size
- 1.4 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- LuminaSet Monthly $4.99
- LuminaSet Yearly $24.99
- Copyright
- © Devin Sewell
