Success Stories

KPAK GoPro Flash Accessory

K-Pak is BLE enabled device which can be used to add LED  flash to Go Pro cameras and can be controlled using an iOS  App and a remote control device.

Results / Outcomes

• Development of complete device firmware  
• Integration of Mechanical and electronics
• Native Android and iOS application to control the GoPro flash
• Device to be launched in USA

System Description

Challenge

• Integrated solenoid and mechanical means, depresses the shutter release button on the GoPro camera  
• Timing between flash and trigger to solenoid

Feasibility Study and Documentation

• Requirements Gathering & Analysis, competitive product study,
• H/W Architecture development and finalization
• Component selection of all components and BOM management.

Hardware Design (Schematics)

• OrCAD for schematics and allegro16.6 for layout

 Embedded Firmware

• Nordic nrf51 BLE Stack and SDK , Keil IDE. The device has the following hardware peripherals
  • TI's DUAL LED Flash driver - LM3643.
  • ADEX 1919203 Solenoid
  • Linear Technology’s LTC2942 - Fuel Gauge

Mobile App Design and Development

Followed the recommended design patterns from Apple.  Custom Video moodes, Photo modes and Strobe Options.

KPAK – HW Architecture

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