Building a Connected Classroom Leveraging IoT


Building a Connected
Classroom Leveraging IoT

About the Client

The client is a global university in US.

Business need

The client wanted ALTEN Calsoft Labs to design a framework to control multiple devices through a single remote. Some of the challenges faced in the process includes:

  • Controlling multiple projectors and displays in lecture rooms
  • Controlling huge number of DVD players and speakers

Solution delivered

ALTEN Calsoft Labs’ end-to-end IoT solution included the following activities viz,

  • Design and development of Hardware & Embedded software for A/V controller used in Conference Rooms
  • Manufacturing and supply of H/W boards to our client based in USA
  • Provides support for 120+ devices (of different makes) available in the US market

Business benefits

  • On-board, real-time clock for easy time and date programming
  • 12V DC Triggering provides control for electromechanical devices, such as projector screens , blinds, DVD/Blu-Ray players, Speakers, etc.
  • Up to 32 commands for control of numerous A/V devices
  • Backup capability eliminates the need for reprogramming in the event of a power failure.
  • The TruLink AV Controller when installed in a Classroom has the ability to control multiple devices from a single IR remote.

Technology stack

Main Board consists of MCU and peripherals listed below:

  • Number of buttons: 8
  • Control Types: Serial RS232, Infrared (IR), 12V DC Triggering
  • Data/Power Connection: Rj45
  • Buttons: Rubberized – contact style
  • Key Plate Material: ABS Plastic
  • Wall Plate Cover Material: Nylon
  • PCB Dimensions (HxWxD): 103 x 45 x 25mm

Multiport Controller Interface Adapter (MCIA) consists of :

  • Connections: 5.5mm DC Power, DB9 Male x 2, 3.5mm TS, 2-Port Screw Terminal (IR), RJ45, 3-Port Screw Terminal (12V trigger)
  • Material: ABS Plastic
  • Dimensions (HxWxD): 23.5 x 82.4 x 69.1mm.

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