Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

# **BLOCK DIAGRAM COMPONENTS :** 1. **Arduino Board:** The Arduino is the brain of the system, a programmable microcontroller that coordinates all operations. It receives input from various sensors, ...

Arduino is a very popular open-source platform and Arduino UNO is one of the most loved microcontrollers among electronics hobbyists worldwide. It consists of a physical programmable circuit board and ...

Fig. 2: Circuit diagram for the flashing light The nine output pins of the Uno board are connected to the nine LEDs, one each, which switch on and switch off at predefined interval. As the high state ...