What is BLE? (2020) | Bluetooth Low Energy | Learn Technology in 5 Minutes

  Переглядів 14,925

MAKERDEMY

Рік тому

Hello and welcome to another episode of “Learn Technology in 5-minutes” from MAKERDEMY.

In this episode, we will learn about Bluetooth Low Energy - the Bluetooth protocol for the Internet of Things.
We are very familiar with Bluetooth technology in our everyday life. We use it to stream audio to our car stereo, connect to our wireless headsets and so on. But what is this Bluetooth Low Energy? Well, you know what? If you are using a fitness tracker or a smartwatch, it is most likely that you are using a Bluetooth Low Energy or BLE device.

You can think of Bluetooth Low Energy as a low power Bluetooth designed for the Internet of Things. Now, as you all know, Bluetooth or to be more precise, Bluetooth Classic is a short-range personal area network wireless technology that is used to transfer data and voice from one device to another.

But, here is something very important that you should know. Even though both Bluetooth classic and BLE are designed and marketed by the Bluetooth Special Interest Group, the 2 technologies don’t interoperate. What that means is that you can’t get a BLE device to talk to a Bluetooth Classic device directly. But if you have a mobile phone, then you have a device that most likely has a dual-mode module that can communicate with both BLE and Bluetooth classic devices and transfer data between both the protocols.

You may ask, How is it possible for the BLE devices to consume significantly less power than the Bluetooth classic? This is because the radio of the BLE device sleeps between transmissions. The radio transmits and goes back to sleep. And it is not just that, with BLE even the connection times are faster. This allows the BLE devices to sleep longer as they connect fast, transmit, disconnect and go back to sleep. Third, BLE transmits smaller packets, so that data is transmitted faster and the radio can go back to sleep fast.

BLE was introduced in 2010 as part of the Bluetooth 4.0 specification. The BLE is a new technology that is designed for the IoT with a very specific use case - to transmit small amounts of data at lower speeds while consuming very little energy. BLE operates at the 2.4 GHz ISM band, the same spectrum as the Bluetooth Classic.

By now it should be clear that the BLE is not meant for the typical use cases of Bluetooth Classic such as streaming audio or large files. Can you take a guess as to which use cases are ideal for the BLE? Well, the BLE is ideal for wearable devices like fitness trackers, smartwatches, personal health care devices, and home automation applications like smart locks and smart lighting. In BLE there are 2 types of devices - the peripheral device and the central device. The peripheral devices are typically constrained devices that need to conserve energy. The central device is typically the device with more processing power and memory where much of the processing gets done. For example, your fitness tracker is the peripheral device and your mobile phone that syncs with your fitness tracker is the central device that processes and displays the data in a dashboard for you to view.

That is all from me in this video, folks. If you like this video then subscribe to our channel and ring the bell so that you don’t miss out on our upcoming videos.

(If you liked this video and would like to buy our course Introduction to Raspberry Pi 4, you are in for a pleasant surprise. Please click on the link below to buy the course for $25 ONLY. Original price is $195.
utm.io/urB5 )

Check us out on
Website : makerdemy.com
Catalogue : makerdemy1.teachable.com
Facebook : Makerdemy/
Twitter : makerdemy
LinkedIn : in.linkedin.com/company/maker...
Instagram : makerdemy
Email : support@makerdemy.com

КОМЕНТАРІ
MAKERDEMY
MAKERDEMY Рік тому
Check out the "Learn Technology in 5 Minutes" video playlist ukposts.info/slow/PLZPR_hmBy0cz75sWkojLbt8KrfC3UkPdJ
Jaysmart Revilla
Jaysmart Revilla 6 днів тому
now i know. very helpful thanks!
Sijo Mathew
Sijo Mathew 3 місяці тому
Great presentation !
MAKERDEMY
MAKERDEMY 3 місяці тому
Thank you! Cheers!
chandru Arul
chandru Arul 5 місяців тому
Simply short explanation very nice sir.
MAKERDEMY
MAKERDEMY 5 місяців тому
Thanks for liking
FPChris
FPChris 6 місяців тому
So BLE is not meant for something like a game pad right?
MAKERDEMY
MAKERDEMY 4 місяці тому
Hi FP Chris. Yes, you are right. BLE is meant for devices that only sent data at regular intervals and will be useful in applications where sleep modes are used. A Gamepad is totally a bad application for BLE due to its irregular data transfer and as it needs continuous power. You may look into normal bluetooth. Thank You.
Roger Colque
Roger Colque 6 місяців тому
nice content
MAKERDEMY
MAKERDEMY 5 місяців тому
Thank you
Sasthi Saha
Sasthi Saha 10 місяців тому
Bengali varsion of bluetooth
Russ Jacob Pacia
Russ Jacob Pacia 11 місяців тому
Very well said, thank you so much Sir.
MAKERDEMY
MAKERDEMY 9 місяців тому
So nice of you
Ignacio Martinez
Ignacio Martinez 11 місяців тому
Great video! Please turn down the ticking clock volume at the end.
MAKERDEMY
MAKERDEMY 5 місяців тому
Noted
Erick Wilson
Erick Wilson Рік тому
thankyou this video helped me out
MAKERDEMY
MAKERDEMY 5 місяців тому
Glad it helped
Introduction to Zigbee (2020) | Learn Technology in 5 Minutes
4:52
What's the difference between RFID, NFC and BLE?
15:42
Jennifer Huber
Переглядів 241 тис.
Collin's Lab - Bluetooth Low Energy
4:58
Adafruit Industries
Переглядів 138 тис.
How does Bluetooth Work?
21:35
Branch Education
Переглядів 603 тис.
Bluetooth 2.0 VS Bluetooth 4.0 (BLE) || Is an Upgrade worth it?
7:54
GreatScott!
Переглядів 536 тис.
#173 ESP32 Bluetooth BLE with  Arduino IDE (Tutorial) and Polar H7
15:55
Andreas Spiess
Переглядів 126 тис.
Ellisys Bluetooth Video 2: Generic Access Profile
5:59
Ellisys
Переглядів 34 тис.
Everything you need to know about Bluetooth Low Energy advertising
1:03:22
Nordic Semiconductor
Переглядів 8 тис.
Ellisys Bluetooth Video 1: Intro to Bluetooth Low Energy
8:06
Ellisys
Переглядів 77 тис.
What Past Predictions of the Future Got Right
12:49
Second Thought
Переглядів 2,3 млн
НА МЕНЯ НАПАЛИ В ПРЯМОМ ЭФИРЕ !
26:27
МИША ВАЙС
Переглядів 643 тис.
Ona ne ya
3:34
Artik & Asti - Topic
Переглядів 333 тис.
Элитная недвижимость гадкой парочки пропагандистов
17:59
Алексей Навальный
Переглядів 2,4 млн
Lil Nas X, Jack Harlow - INDUSTRY BABY (Official Video)
3:56
LilNasXVEVO
Переглядів 53 млн