Generally, line follower robot is microcontroller-based. Here we describe a line follower robot without microcontroller for those who are not familiar with microcontrollers. It...
This stress monitor lets you assess your emotional pain. If the stress is very high, it gives visual indication through a light-emitting diode (LED) display along with a warning beep. The gadget is small enough to be worn around the wrist.
The temperature of some electronic components used in a device may rise unexpectedly and these might get damaged. This multichannel visual thermometer can indicate...
While repairing or installing electrical machines in a building, the AC mains power supply is switched off from the mains electrical switchboard installed outside...
You can make an ultra-simple desktop emergency light using ‘discharged’ batteries. You know that battery cells still have considerable energy left in them even...