6 (Six) Different WAYS OF POWERING A PROJECT:

WAYS OF POWERING A PROJECT:

Generally, there are many methods for powering a project, some of them are listed below.

• Powering via a USB Cable
• DC bench Power supply unit
• AC to DC power supplies as for laptops
• DC Batteries
• Solar Cells
• Power Banks

Although some power supply sources have been listed above, the question remains as to which power source should be chosen. The answer to this issue is that it depends on the sort of project and the environment in which it will be employed. The majority of the time, it is determined by the project's specific requirements.

A USB cable is required to power small projects such as basic development boards and circuits. A simple project on Arduino UNO to just run the example circuit, for example, can be powered via a USB connection. Otherwise, if testing of various circuits is necessary for commercial purposes, the variable DC bench Power Supply is the best alternative. Because such a source allows you to use any precise voltage source to power your desired circuit, it also provides a protective function for your circuit by powering it with the right and exact source that is best suited for it. This power source will turn off and the circuit will become safe if there is a short in the circuit. This is the moment to employ a certain AC to DC adaptor after selecting the right source from the DC bench Power Supply. These AC to DC adapters or power supplies are the ideal option for powering a project because they have a defined output need as stated in their case. However, it is critical to verify that your power supply or adaptor meets the specifications that your project requires otherwise, it could put you at grave risk and cause your entire circuit to burn out.

However, if you are not concerned with the wall AC power source and the project is mobile or in a remote place away from a wall AC connection, DC Batteries are a viable option. Batteries are the major source of energy and come in a variety of shapes and sizes. The rechargeable nickel-metal hydroid (NiMH) AA Batteries are the most prevalent type.  However, depending on the scenario and circuit needs, the best choice can be made. Solar cells are typically used less in mobile projects since the robot may go to areas with lower sunlight intensity; nevertheless, using rechargeable batteries in conjunction with solar cells makes it more favorable than before. The most portable and best power supply option is the last.  The final power supply option is the most portable and is the greatest choice for powering any type of project, whether stationary or mobile. However, the power bank should be chosen based on the specifications necessary.

Voltage requirement for the project:

The second factor to consider for power management is the amount of voltage required for the project. The best voltage can be chosen from the main project component, which is called the project's core, or from the component that acts as the project's heart, supplying power to various components of the project.

In the Project Mobile Surveillance System, the Raspberry Pi 3B + and the motor driver model L298N are used as core or heart components. Both devices are used for different purposes. Raspberry Pi is acting as the brain (programming device) of the project and controlling the whole project. The motor driver controls and provides power to the 4 wheels of the L298N robot.

According to the details of Raspberry Pi 3B +, the input power supply limit is at least 5 AV with at least 2.5 A input. Raspberry pie allows us to supply voltage in the specified range of 5V

You may like to read about LED:

• Differences Between LCD and LED

• Semiconductors and Insulators

The current requirement for the project:

Like voltage, it is also recommended to check the datasheet of each part of the project. It is also a good practice to consider the worst-case scenario for the project, which means that for better performance of the project the component should take into account the maximum current rating of each component, as in some time. My draw can instantly give a full rating. 

It is also suggested that the current rating of the power supply should be much higher or to some extent higher than the current rating of all the components drawing current from the source (power supply). The current draw DMM digital multimeter can be easily used, however, we will not explain here how you can find the current / voltage using a digital multimeter.