Engineering, Tech News

Inflatable Airbag Helmet

This helmet that can significantly help in reducing the number of deaths due to road mishaps in India. one doesn’t need statistics to conclude that Indian roads are some of the most dangerous in the world, if not the most! Approximately, 27 per cent of deaths caused by road accidents in India are of two-wheeler motorists and a sizeable chunk…

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Computer, Engineering, Smart Gadgets, Tech News

World’s Small Satellite

  NASA launches world’s small satellite designed by 18-year-old Tamilnadu student Smallest 3D-printed satellite India once again broke a global space record by launching the world’s lightest satellite weighing a mere 64 grams, it’s called Kalamsat, designed and developed not by professional space scientists and engineers, but by 18 years old Tamilnadu student Rifath Sharook and his friends. The tiny…

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Engineering

How buzzer works?

Piezo buzzer is an electronic transducer used for produce sounds. The buzzer had an outer case with two pins. Inside the buzzer it has piezo element, consists of a ceramic disc surrounded by metal disc. The working principle is, whenever an electric potential is applied across a piezoelectric material, a pressure variation is generated. These pressure variation, push and pull…

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Engineering

DIY – Mosquitoe Repellent using 555 timer?

Before designing the electronic mosquito repellent, we need to understand why mosquitoes bites humans. Only The female mosquito is the one that bites (males feed on flower nectar). She requires blood to produce eggs. After breeding female mosquitoes avoid male mosquitoes. Generally, male mosquitoes generates frequency in the range of 20KHz-40KHz. So, we are going to create this frequency sound manually to avoid…

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Engineering

How to create Mosquito Repellent using Arduino?

Before designing the electronic mosquito repellent, we need to understand why mosquitoes bites humans. Only The female mosquito is the one that bites (males feed on flower nectar). She requires blood to produce eggs. After breeding female mosquitoes avoid male mosquitoes. Generally, male mosquitoes generates frequency in the range of 20KHz-40KHz. So, we are going to create this frequency sound manually to…

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Engineering

How QR scanner works?

QR scanners are used for scanning QR codes which are square filled with encrypted data. The code system was invented in 1994. it can able to scan two types of QR codes Linear: Linear barcode typically holds any type of text information 2D barcode :  2D barcode is more complex information such as URLs, images and advertisement. The QR scanner consists of…

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