How to use WhatsApp Payments to send money


WhatsApp Payments has slowly started rolling out to users in India through a broader rollout is still awaited. The initial rollout has seen a massive response from WhatsApp users so far as it doesn’t require too many steps or any digital wallet. With over 200 million monthly active users, WhatsApp bringing payments feature first to India makes sense for the large user base in the country...

How to Use an Oscilloscope


Introduction Have you ever found yourself troubleshooting a circuit, needing more information than a simple multimeter can provide? If you need to uncover information like frequency, noise, amplitude, or any other characteristic that might change over time, you need an oscilloscope! O-scopes are an important tool in any electrical engineer’s lab. They allow you to see electric signals as they...

An Introduction to Arduino


An Arduino is an open-source microcontroller development board. In plain English, you can use the Arduino to read sensors and control things like motors and lights. This allows you to upload programs to this board which can then interact with things in the real world. With this, you can make devices which respond and react to the world at large. For instance, you can read a humidity sensor...

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