What is Raspberry Pi?

In simple words, the Raspberry pi is a small computer. The size of a Raspberry pi is like the size of a credit card. Basically, the Raspberry pi is a CPU. They are so many ports to connect the various input-output devices with it. Like they have USB ports, Lan cable port, audio jack, display connector, power connector, etc.

This is how Raspberry pi looks like:

raspberry pi


As you can see that the size of raspberry py is so small. But they have more features than a computer. Like they have GPIO pins to attach various sensors like a flame sensor, motion sensor, fingerprint scanner, etc. The GPIO stands for General Purpose Input Output. In raspberry pi, there are 40 GPIO pins.

The pin diagram of GPIO pins are:


Why the Raspberry pi board is so popular?

  1. Due to its small size.
  2. More features than a  computer
  3. Affordable
  4. Advance level projects can be easily made by Raspberry pi

Specifications of Raspberry Pi are:

  • CPU: Quad-core 64-bit ARM Cortex A53 clocked at 1.2 GHz
  • GPU: 400MHz VideoCore IV multimedia
  • Memory: 1GB LPDDR2-900 SDRAM (i.e. 900MHz)
  • USB ports: 4
  • Video outputs: HDMI
  • Network: 10/100Mbps Ethernet and 802.11n Wireless LAN
  • Peripherals: 17 GPIO plus specific functions, and HAT ID bus
  • Bluetooth: 4.1
  • Power source: 5 V via MicroUSB or GPIO header
  • Size: 85.60mm × 56.5mm
  • Weight: 45g

Raspberry pi port diagram:-


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