Android BLE
Techniques and best practices for implementing BLE on Android devices.
Bluetooth Low Energy (BLE)How to Implement an Android BLE Connect Flow
On Android, connectGatt() doesn't hand you a connection. It starts a request whose real outcome, success or a cryptic status 133, lands later in a callback. This walks the full connect flow from a scan result to a confirmed connection,…
Bluetooth Low Energy (BLE)How to Use Android BLE Scan Filter
Android's ScanFilter API lets you narrow BLE scan results to the devices that matter most. Learn how to filter by service UUID, device name, manufacturer data, and more while optimizing scan behavior for faster, more reliable discovery.
- Bluetooth Low Energy (BLE)
How to Perform a BLE Scan on Android
Learn how to perform a BLE scan on Android using Kotlin, from configuring permissions and BluetoothLeScanner to displaying nearby devices and managing scan results across Android versions.
- Bluetooth Low Energy (BLE)
Why Your BLE Scan Returns No Results on Android
BLE scans on Android can fail silently, leaving you with an empty list and no clear reason why. This guide walks through the common causes, from permissions and filters to Android quirks, and how to systematically debug them.
- Bluetooth Low Energy (BLE)
Building a Reliable Android BLE Operation Queue
Unreliable reads, writes, and callbacks in Android BLE usually come down to one missing piece, a proper operation queue. Learn how to build a simple, thread-safe queuing system that ensures your BLE operations execute cleanly, one at a time.
- Bluetooth Low Energy (BLE)
Troubleshooting Android BLE Scan Errors: Causes and Fixes
BLE scanning on Android can break without warning. This article explains the most common causes, including rate limits, permissions, and hardware state issues, and walks through how to identify and fix them quickly.
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