What power supply for Arduino?
You will supply power to all Arduino circuits by connecting it to your computer using a USB cable. This is the simplest and most common way to power the board. It is also due to the ability to communicate immediately after connecting the board. Communication takes place through the virtual serial port. However, it is not an ideal solution that is always worth using. Sometimes the current is too low for a powerful motor and additional actuators. This is the case with the USB 2.0 standard, where the supplied current can be up to 500 mA. An alternative to the USB cable is a DC socket. It is located in Arduino Mega and Arduino UNO, among others. It is recommended in case more power needs to be supplied to the Vin line.
In our offer there is a wide range of plug and desktop power supplies. With their use you will be able to power Arduino via 5,5/2,1 mm DC plug. This type of power supplies are characterized by slightly larger dimensions than the plug connectors, which have lower current capacity but small dimensions. Desktop power supplies usually have a detachable mains cable terminated with a typical plug. You'll find power supplies that range from 1.5A to 2.5A and desktop power supplies that range from 1A to 5A. In each of these cases, you will find an output voltage of 12 V or 5 V.
Eco-power supply for Arduino for those who care for the environment
Renewable energy sources are becoming increasingly popular. In recent years, the awareness of our impact on the environment has increased significantly. We know that we can use energy sources that are inexhaustible and do not harm our environment. Thus, we often look for solutions that would allow us to use them. One of them is the Solar Charger Shield cap. It is a relatively cheap option, but very practical and functional, and what is important, ecological. The cap enables powering the board with a 1S 3.7V lithium-polymer battery. It is charged by a solar battery with a voltage from 4.8 to 6 V. It is also possible to work with batteries whose voltage ranges from 3 to 4.2 V. In addition, the Solar Charger Shield can work with a micro USB socket. This is a practical solution, especially since the power supply does not occupy any signal line of the microcontroller. This means that the possibilities of using the target application are not limited in any way.
Power supply is crucial for efficient and correct operation of Arduino board and the whole application. There are several possibilities to provide it with the power it needs to operate the system. You can use the most common option, namely USB cable and DC socket. If you are a supporter of renewable energy sources, then choose the Solar Charger Shield cap that allows you to draw power from the sun.