Connected Devices
Smart Band
A wearable platform combining BLE, LTE and GNSS for location reporting and voice calls, supported by a mobile application and cloud services.
- Location reporting + voice calls
- Wearable
- BLE
- LTE
- GNSS
Coordinated multi-device audio
Smart Communication System
A connected audio platform that plays coordinated dialogue scenarios across several devices, with local audio storage and mobile-app configuration.
Overview
This audio platform enables several devices to play coordinated dialogue scenarios. Audio is stored locally, while a mobile application is used to configure the playback sequence.
- Connected Devices
- Wi-Fi
- Bluetooth
- Audio
- Multi-Device
The electronics combine Wi-Fi and Bluetooth communication with an amplifier, speaker interface, SD-card storage and FRAM.
Challenge
Coordinate playback across multiple devices while keeping the audio content on the devices themselves. The system needs to connect mobile configuration, device communication and local playback within a compact board design.
What We Did
HTS developed the custom electronics and embedded device functionality for wireless communication, local audio storage and scenario-based playback. The board integrates the processing, memory and audio path needed by the multi-device system.
System
- Configuration
- A mobile application defines the dialogue scenario.
- Device communication
- Wi-Fi and Bluetooth support communication within the connected platform.
- Local playback
- Stored audio passes through the onboard amplifier to the speaker, following the configured sequence.
Technical Details
| Parameter | Specification |
|---|---|
| Board dimensions | 70 × 50 mm |
| PCB stack | 4 layers |
| Wireless interfaces | Wi-Fi and Bluetooth |
| Removable storage | SD card |
| Additional memory | FRAM |
| Audio path | Amplifier and speaker interface |
| Control | Mobile-app scenario configuration |
| Operating concept | Coordinated dialogue playback across multiple units |
Result
The design combines local audio playback and wireless coordination on a four-layer board. It provides the embedded basis for a configurable multi-device dialogue system.
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Building a connected audio device?
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