Types of Raspberry Pi’s

Types of Raspberry Pi

1.Raspberry Pi Pico

Raspberry Pi Pico has been designed to be a low cost yet flexible development platform for RP2040, with the following key features:
• RP2040 microcontroller with 2MByte Flash
• Micro-USB B port for power and data (and for reprogramming the Flash)
• 40 pin 21×51 ‘DIP’ style 1mm thick PCB with 0.1″ through-hole pins also with edge castellations
Exposes 26 multi-function 3.3V General Purpose I/O (GPIO) 23 GPIO are digital-only and 3 are ADC capable Can be surface mounted as a module
• 3-pin ARM Serial Wire Debug (SWD) port
• Simple yet highly flexible power supply architecture Various options for easily powering the unit from micro-USB, external supplies or batteries
• High quality, low cost, high availability
• Comprehensive SDK, software examples and documentation For full details of the RP2040 microcontroller please see the RP2040 Datasheet, however the headline features are:
• Dual-core cortex M0+ at up to 133MHz On-chip PLL allows variable core frequency
• 264kByte multi-bank high performance SRAM
• External Quad-SPI Flash with eXecute In Place (XIP) and 16kByte on-chip cache
• High performance full-crossbar bus fabric

2.Raspberry Pi Zero

Raspberry Pi Zero with smaller size and reduced input/output (I/O) and general-purpose input/output (GPIO) capabilities was released in November 2015. On 28 February 2017, the Raspberry Pi Zero W was launched, a version of the Zero with Wi-Fi and Bluetooth capabilities. On 12 January 2018, the Raspberry Pi Zero WH was launched, a version of the Zero W with pre-soldered GPIO headers.

 
Description

This is a tiny Raspberry Pi that’s affordable enough for any project! The Raspberry Pi Zero is a full-fledged member of the Raspberry Pi family and is half the size of a Model A+, with twice the utility. It has features almost similar to that of Raspberry Pi 2 – with just a micro SD card slot, a mini HDMI port, two micro USB ports (one for power, one for USB), and 512MB of RAM. It has a single-core Broadcom BCM2835 1GHz ARM11 core application processor almost similar to the Pi A+ and B+ but 40% faster than Raspberry Pi 1. Raspberry Pi Zero runs Raspbian and all your favourite applications, including Scratch, Minecraft and Sonic Pi.The board supports mini connectors to save on space, and the 40pin GPIO is unpopulated providing the flexibility to use only the connections your solution requires.

Specifications
EthernetVia USB to Ethernet Adapter
WifiNo,  (Pi Zero W & WH dose have wifi)
USB1 x Micro USB
RAM512MB RAM
Processor1GHz single-core CPU
HDMI1 x Mini HDMI
Input Power5 V/2.5 A DC via micro USB connector
BluetoothNo
CSI camera connectorYes (v1.3 only)
3.Raspberry Pi 2 B
pi 2 model b

The Raspberry Pi 2 was released in February 2015 and initially featured a 900 MHz 32-bit quad-core ARM Cortex-A7 processor with 1 GB RAM. Later versions featured a 1.2 GHz 64-bit quad-core ARM Cortex-A53 processor.

Power Draw

Quad-core ARMv7 processor means higher current draw.

Just having the Pi 2 Model B running idle (no HDMI, graphics, ethernet or wifi just console cable) the Pi 2 draws 200mA

With WiFi running, that adds another 170mA

If you have Ethernet instead, that adds about 40mA

When doing the heaviest computational tasks, we added about 200-250mA more current. So if you’re really using your Pi 2 and you have a WiFi dongle, expect to need 650mA @ 5V, at least. More if you have stuff connected to the GPIO connector, other USB devices, Ethernet as well, etc!

If you’re still running with a cheap 5V 700mA power supply, we really recommend upgrading to a 5V @ 2000mA

 

EthernetVia USB to Ethernet Adapter
WifiNo,  (Pi Zero W & WH dose have wifi)
USB1 x Micro USB
RAM1GB RAM
Processor900MHz quad-core ARM Cortex-A7 CPU
HDMI1x HDMI
Input Power5 V/2.5 A DC via micro USB connector
BluetoothNo
CSI camera connectorYes (v1.3 only)
4.Raspberry Pi 3 A+
raspberry-pi 3-A+

The Raspberry Pi 3 Model A+ is the latest product in the Raspberry Pi 3 range. Like the Raspberry Pi 3 Model B+, it boasts a 64-bit quad core processor running at 1.4 GHz, dual-band 2.4 GHz and 5 GHz wireless LAN, and Bluetooth 4.2/BLE. The dual-band wireless LAN comes with modular compliance certification, allowing the board to be designed into end products with significantly reduced wireless LAN compliance testing, improving both cost and time to market. The Raspberry Pi 3 Model A+ has the same mechanical footprint as the Raspberry Pi 1 Model A+.

 

Specifications

The Raspberry Pi 3 Model A+ extends the Raspberry Pi 3 range into the A+ board format.

  • Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz
  • 512MB LPDDR2 SDRAM
  • 2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2/BLE
  • Extended 40-pin GPIO header
  • Full-size HDMI
  • Single USB 2.0 ports
  • CSI camera port for connecting a Raspberry Pi Camera Module
  • DSI display port for connecting a Raspberry Pi Touch Display
  • 4-pole stereo output and composite video port
  • Micro SD port for loading your operating system and storing data
  • 5V/2.5A DC power input
5.Raspberry Pi 3 B+
pi 3 B+

The Raspberry Pi 3 Model B+ is the latest product in the Raspberry Pi 3 range, boasting a 64-bit quad core processor running at 1.4GHz, dual-band 2.4GHz and 5GHz wireless LAN, Bluetooth 4.2/BLE, faster Ethernet, and PoE capability via a separate PoE HAT. The dual-band wireless LAN comes with modular compliance certification,
allowing the board to be designed into end products with significantly reduced wireless LAN compliance testing, improving both cost and time to market. The Raspberry Pi 3 Model B+ maintains the same mechanical footprint as both the Raspberry Pi 2 Model B and the Raspberry Pi 3 Model B.

 

Specification

The Raspberry Pi 3 Model B+ is the final revision in the Raspberry Pi 3 range.

  • Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz
  • 1GB LPDDR2 SDRAM
  • 2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2, BLE
  • Gigabit Ethernet over USB 2.0 (maximum throughput 300 Mbps)
  • Extended 40-pin GPIO header
  • Full-size HDMI
  • 4 USB 2.0 ports
  • CSI camera port for connecting a Raspberry Pi camera
  • DSI display port for connecting a Raspberry Pi touchscreen display
  • 4-pole stereo output and composite video port
  • Micro SD port for loading your operating system and storing data
  • 5V/2.5A DC power input
  • Power-over-Ethernet (PoE) support (requires separate PoE HAT)
6.Raspberry Pi 4 B
Pi4-B front

Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior-generation Raspberry Pi 3 Model B+, while retaining backwards compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.

The key features include a high-performance 64 bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at  up to 4Kp60, up to 4GB of RAM, dual-band 2.4/5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have modular compliance certification,
allowing the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.  

 

Specification

Processor: Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
                     Memory: 1GB, 2GB or 4GB LPDDR4 (depending on model)


Connectivity: 2.4 GHz and 5.0 GHz IEEE 802.11b/g/n/ac wireless LAN, Bluetooth 5.0, BLE Gigabit Ethernet
                          2 × USB 3.0 ports
                          2 × USB 2.0 ports.


GPIO: Standard 40-pin GPIO header (fully backwards-compatible with previous boards)


Video & sound: 2 × micro HDMI ports (up to 4Kp60 supported)
                              2-lane MIPI DSI display port
                              2-lane MIPI CSI camera port
                              4-pole stereo audio and composite video port


Multimedia: H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES, 3.0 graphics
                        SD card support: Micro SD card slot for loading operating system
                        and data storage


Input power: 5V DC via USB-C connector (minimum 3A1) 5V DC via GPIO header (minimum 3A1)
                          Power over Ethernet (PoE)–enabled (requires separate PoE HAT)

7.Raspberry Pi 400

Raspberry Pi 400 is your complete personal computer, built into a compact keyboard. Featuring a quad-core 64-bit processor, 4GB of RAM, wireless networking, dual-display output, and 4K video playback, as well as a 40-pin GPIO header, it’s the most powerful and easy-to-use Raspberry Pi computer yet. Raspberry Pi 400 is also available as part of a complete kit including a mouse, power supply, preloaded SD card, and more.

Specification
  • Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.8GHz
  • 4GB LPDDR4-3200
  • Dual-band (2.4GHz and 5.0GHz) IEEE 802.11b/g/n/ac wireless LAN
  • Bluetooth 5.0, BLE
  • Gigabit Ethernet
  • 2 × USB 3.0 and 1 × USB 2.0 ports
  • Horizontal 40-pin GPIO header
  • 2 × micro HDMI ports (supports up to 4Kp60)
  • H.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics
  • MicroSD card slot for operating system and data storage
  • 78- or 79-key compact keyboard (depending on regional variant)
  • 5V DC via USB connector
  • Operating temperature: 0°C to +50°C ambient
  • Maximum dimensions 286 mm × 122 mm × 23 mm

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