Question

Choose any one embedded system application device or equipment. With aid of block diagram, explain the operation of the system, advantages and disadvantages of chosen device or equipment.

Answer 1

Raspberry Pi 3B+

The Raspberry Pi is a Visa measured single-board PC with an open-source stage that has its very own flourishing network, like that of the Arduino. It tends to be utilized in different sorts of ventures from novices figuring out how to code to specialists planning home computerization frameworks.

There are a couple of adaptations of the Raspberry Pi, however the most recent rendition, has enhanced its ancestor as far as both structure and usefulness. The Raspberry Pi Model B highlights:

• More GPIO

• More USB

• Micro SD

• Lower control utilization

• Better sound

• Neater structure factor

The more current Raspberry Pi 3B+ has been discharged. It has a quicker 1.4GHz CPU, Gigabit Ethernet (by means of USB), Dual Band remote LAN and heaps of fascinating equipment changes

Raspberry Pi 3 Specifications

RAM: 1GB LPDDR2 (900 MHz)
Networking: 10/100 Ethernet, 2.4GHz 802.11n wireless
Bluetooth: Bluetooth 4.1 Classic, Bluetooth Low Energy

SoC: Broadcom BCM2837
CPU: 4× ARM Cortex-A53, 1.2GHz
GPU: Broadcom VideoCore IV
Storage: microSD

GPIO: 40-pin header, populated
Ports: HDMI, 3.5mm analogue audio-video jack, 4× USB 2.0, Ethernet, Camera Serial Interface (CSI), Display Serial Interface (DSI)

Advantages

You can introduce a completely fledged Operating System (eg Raspbian which is Linux-based or Windows IOT Core which is Windows based OS) and use it as an everyday PC

The nearness of GPIO (General Purpose Input Output pins) is the thing that recognizes a RPi from conventional PCs. You can associate these pins to sensors and outer segments and connect with them programatically utilizing a language, for example, Python. This enables you to manufacture and model Internet of Things gadgets that can detect this present reality

More current models like the RPi has wifi and bluetooth implicit. This enables you to bring ventures into remote mode effectively.

Disadvantages

There isn't any circuit insurance on the Rpi, so in the event that you interface sticks inaccurately, you can harm the board

It isn't as quick regarding CPU handling speed nor does it have as much memory as conventional PC or PCs. However, for $35, it packs a significant punch

There is no worked in simple to computerized transformation on the GPIO pins like there is in Arduino. So you need an ADC chip to work with simple signs when you need more precision