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Case Study

Door Bell Silencer


Door Bell Silencer

Door bell silencer is a BLE enabled device which can be  used for turning door bell on/off, and can be controlled  using a smartphone App via BLE connection
 

 
 

Challenge

  • iOS/Android App connect to the device using BLE and send command to control the device  
  • relay control for controlling door bell and sense circuit for detecting door bell switch press

Outcome

  • Product design and architecture
  • Development of complete device hardware, firmware and cross-platform Mobile application
  • Integration of Mechanical and electronics
  • Device to be launched in USA
 
 

Connected Door Bell Silencer


CLIENT
  • US based Home Automation company.

PRODUCT
  • A BLE based Doorbell silencer, controlled by a mobile application.

TECHNOLOGY
  • Nordic nRF51822 BLE SoC, Android 4.4 and above, iOS 7 and above, PhoneGap

USE CASE
  • Connect and control the Doorbell device using mobile app.
  • Silence or turn on the door bell device from the mobile app .
  • Present the time of a day ( and the day(s) of a week) at which the Doorbell to be  silenced from the app.
  • Notifications should be received on the mobile, when the Doorbell is pressed during a silence period.
  • Doorbell logs and other information like battery life on the mobile application.


 
WHAT DID GADGEON DO? PLATFORMS/TOOLS/TECHNOLOGIES USED
1) Architecture for complete system including BLE based  ruggedized water proof camera flash system and IOS/Andorid  Mobile App to control the device. Requirements Gathering & Analysis, Uses cases, Architecture
development, identification of functional components.
2) Hardware design, prototyping, boardbring up for BLE based  system. Orcad for schematics and allegro16.6 for layout
3) Embedded firmware BLE based system and its integration and  testing on reference platform and on Target platform Nordic nrf51 BLE Stack and SDK , Keil IDE. The device has the  following hardware peripherals
a. EE2-5NU relay
4) Mobile App design and development for controlling and
managing the ruggedized door bell.
Followed the recommended design patterns from Apache  cordova. Advertisement, pairing using the passkey, discover  services, enable/disable doorbell, notification to the house users  with history logs.

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