Cooking can be grueling experience if kitchen is not ventilated properly. Despite good ventilation sometimes we need an exhaust fan to moderate the temperature in kitchen while cooking. But when we are so busy cooking, we often forget the fan…
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Wastage of water is a common issue among households. There are industrial grade water level detectors which monitor the water level in tanks and activate or deactivate the motor based on water level. However those industrial equipment tend to be…
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Backup power supplies have become a necessity these days since we cannot afford interruption in our routine. You might have seen pretty sophisticated version of this Backup circuit in Office, hospitals and sometimes at residential areas. Leaving the sophisticated backup…
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Thief or Burglar or door alarm is obviously most famous form of hobby circuit that we find in the Internet. Each of these circuits use different components and different trigger mechanism to activate the circuit. Here is a circuit…
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We are turning everything around us smart with the help of technology, why leave your exhaust fan out of this smart circle? Here is a very simple circuit that can make your exhaust fan smart which in turn saves…
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Code lockers are used for security purposes and it is of many types based on their complexity and level of security they provide. Here we are going to see building of simple code locker circuit using decade counter IC CD4017….
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DIY Arduino based lockers can be found plenty in the internet where keypad was used to feed lock input. But this Bluetooth enabled Door locker uses Bluetooth as a medium to connect with the locker and your smart phone to…
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