Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This beginner-friendly project is perfect for learning basic electronics, sensors, and data ...

Remember the good old PDAs or Personal Digital Assistants that people used for taking notes, keeping schedules, keeping a tab on contacts, and such stuff? Here is what can be said as a modern take on ...

In case you have those collecting dust on a shelf - I can put them into some fun projects. Already ordered various stuff from Aliexpress, but as usual cheap as chips, but takes forever to arrive. 1" ...