The foundation of Raspberry Pi is an educational charity located in the UK. The main intention of this foundation is to develop the education system for children and adults, especially in the field of computer science related subjects. The Raspberry Pi is a credit-card sized and low-cost device. It plugs into a TV or computer monitor and uses a mouse and keyboard. This device allows all the students and aged people to learn how to write a program in a language like Python and Scratch. This Raspberry Pi is mainly used for browsing the internet, playing HD video, word pressing, playing games and to make spreadsheets. The applications of Raspberry Pi mainly involve in digital projects, music machines, weather stations, IR cameras and raspberry pi projects.
What is Raspberry Pi?
Generally, the raspberry pi is designed for the educational purpose and it is in small size like a credit card. It will improve the programming skills & hardware programming at the higher education in the schools or colleges. The raspberry pi is slower than the laptop or desktop and it is totally in the Linux operating system. The availability of price in the market is low.
Different Types of Raspberry Pi Models
The different types of raspberry pi models are following
- Raspberry Pi 1 model B
- Raspberry Pi 1 model A
- Raspberry Pi 1 model B+
- Raspberry Pi 1model A+
- Raspberry Pi Zero
- Raspberry Pi 2
- Raspberry Pi 3 model B
- Raspberry Pi Zero W
Raspberry Pi 1 model B+
This model B+ is replaced in the place of raspberry pi model B in the year 2014. Model B+ Rpi is compared with the model B it has.
More GPIO: The GPIO model B+ has 40 pins while retaining the same pinout for the first 26 pins as the Model A and B.
More USB: It has 4 USB 2.0 ports, compared to 2 on the Model B, and better hotplug and overcurrent behavior.
Micro SD: The old friction-fit SD card socket has been replaced with a much nicer push-push micro SD version.
Lower Power Consumption: In the low power consumption the linear regulators are replaced by switching one and it will reduce the power consumption by between 0.5W and 1W.
Better Audio: The audio circuit has a dedicated low-noise power supply.
Neater Form Factor: With the broad edges the USB connections are arranged and the video is moved composite with the 3.5mm jack. There are four squarely-placed maintaining holes.
Raspberry Pi Zero
It is a half size of the model A+ with twice a utility and for any project, it has the same specification like 1GHz, Single-core CPU, 512MB RAM, Mini-HDMI port, Micro-USB OTG port, Micro-USB power, HAT-compatible 40-pin header, Composite video and reset headers, CSI camera connector (v1.3 only). The following image shows the raspberry pi zero.
Raspberry Pi 2
The basic image of the raspberry pi 2 is following and the features of the raspberry pi 2 are it has quad-core ARM cortex-A7 processor with a 900MHz, the SDRAM is about the 1GB. It is completely compatible with the raspberry pi 1.
Raspberry Pi Model B
It is a higher-spec variant of raspberry pi. After this design of this raspberry pi, it has extended to the next model i.e raspberry pi 2. The specifications of the raspberry pi model B are following, the raspberry pi model B has two USB ports, having a RAM of 512MB and its Ethernet port is 100mb. The basic image of the raspberry pi model is shown in the following.
The following table shows the comparison between four different types of raspberry pi models.
|Raspberry pi 3 model B||Raspberry pi 2 model B||Raspberry pi model B+||Raspberry pi model A+|
|GPU||Videocore IV||Videocore IV||Videocore IV||Videocore IV|
|Processor Speed||1.2GHz Quad-core processor||900MHz Quad core processor||700MHz Single core processor||700MHz Single core processor|
|Bluetooth LE||Built in||No||No||No|
|Storage||Micro SD||Micro SD||Micro SD||Micro SD|
|RAM||1 GB SDRAM of 400MHz||1 GB SDRAM of 400MHz||512 MB SDRAM of 400MHz||256 MB SDRAM of 400MHz|
|GPIO||40 Pin||40 Pin||40 Pin||40 Pin|
|USB 2.0||4 x USB Port||4 x USB Port||4 x USB Port||1 x USB Port|
|Maximum power draw/voltage||The maximum power is about 2.5A and voltage is 5V||The maximum power is 1.8A and voltage is about 5V.||The maximum power is 1.8A and voltage is about 5V.||The maximum power is 1.8A and voltage is about 5V.|
Advantages of Different Raspberry Pi Models
- The size of the raspberry pi is in small of credit card
- The price of the raspberry pi is low
- Gathering a set of raspberry pi to work as a server is more effective than the normal server.
Applications of Raspberry pi
The different applications of the raspberry pi model are
- Media steamer
- Tablet computer
- Home automation
- Internet radio
- Controlling robots
- Cosmic Computer
- Arcade machines
- Raspberry pi based projects
Conclusion: This title will discuss the different types of raspberry pi models. I hope by reading this article you have gained some basic information about the different types of raspberry pi models. If you have any queries about this article or about the implementation of projects based on the microcontroller in the engineering, Please feel free to comment in the below section. Here is a question for you, What are functions of the different raspberry pi models?