Experiments Included:

  • To operate Relays in Set & Reset Mode
  • To Set an Individual Relay
  • To Control ON/OFF Sequences in Ascending Order
  • To Control ON/OFF Sequences in Descending Order
  • To study the IR Tx/Rx Application
  • To study the Touch sensor Application
  • To study the Temperature sensor Application using Heater and DC Fan
  • To study CW & CCW control of DC Motor
  • To study the Characteristic of Delay Timer


Computers can be used as dedicated controllers for a variety of uses but an interface is needed to connect them to the real world. This Trainer controls 8 electromechanical relays using USB  UART interface and Microcontroller. Each relay is switched on or off by output data (8 bits) sent by PC software. The software provides a graphical user interface to control relay operations, their control sequences with LED indication and simulations.


  • Application installed on-board
  • Driver/Protection circuit installed

Technical Features:

  • Relays: 8X SPDT with NC, NO & Common
  • Processor: 8-Bit with Monitor Software
  • A/D Converter: 8-Bit Monolithic Type
  • Relay Driver: 8X Darlington with reverse protection Diodes
  • Motor: +12VDC Motor, +12V Fan
  • Heater: Resistive Type
  • Temperature Sensor: 10mV/ºC Monolithic Type
  • PC Interface: USB-UART with PC Software
  • On-Board Applications:
  • IR Transceiver
  • DC Motor
  • Delay Timer with adjustable Delay
  • Touch Sensor
  • DC Lamp
  • Temperature Control with Heater & Fan

Software Features:

  • Temperature Control
  • Automatic and manual control of temperature by using relay
  • DC Motor Control
  • DC Motor ON/OFF and direction control by using relays
  • Sensor Control
  • Bulb ON/OFF control
  • Turn relay ON/OFF on IR sensor input
  • Turn relay ON/OFF on Touch sensor input
  • Turn relays ON/OFF in ascending or descending order of their names

Accessories: Power Cord, Experiment Manual, 2mm Patch Cords, USB Cable, Software CD