Nicely done. Another really important difference is that the HC-05 BT2.0 boards DO NOT WORK with iPhones. That's because Apple refused to pay the licensing fees for this relatively old BT standard. So if you want your application to work with iPhones then you need to use a more modern BT standard like 4.0, eg the HM-10. So, if you care about iPhone compatibility use BT4.0LE via board like the HM-10.

I’ve got the same cheap chinese version. You can find tutorials online how to flash a genuine HM-10 firmware on it and then you can use it as intended. Also, one more advantage of the Bluetooth 4.0 is the iBeacon mode, which can be used to track the distance from the device without even connecting to it, so it can last for years with just a coin cell battery.

The sponsoring for this channel actually makes sense unlike on other channels. Once again a very detailed video.

we all should appreciate the Chinese manufacturers for providing us with cheap and affordable electronics!

You forgot about one nifty thing that might convince some people to switch from HC-05. HC-10 can work as an iBeacon. What that basically means is that it can broadcast its data to more than one device at a time. Useful for something like sensors that don't need to receive data from controller and if they do need to receive something like a config change, you can easily switch them back to Central + Peripheral mode, receive data packet and go back to Broadcaster + Observer.

You explain the content in the simplest way possible

If there is any affirmation to how much we like your videos, the responses here are it. Great work as usual Great Scott!

Some more features of this board - 1. The HM-10 is rated to operate at a supply voltage of 2.0 to 3.7 volts, and its I/O are 3.3V tolerant. 2. HM-10, 11 and 12 all use TI's BLE4.0 CC2540 chip. 3.Requires up to 50mA 4. Uses around 9mA when in an active state 5. Use 50-200uA when asleep 6. RF power: -23dbm, -6dbm, 0dbm, 6dbm 7. Default baud rate for the serial connection is 9600 8.The main modes of operation are called the advertising mode, scanning mode, master device, and slave device.

How the hell do you do this man? You always make a video about what I need for my projects. This is like the 5th time :D

Nice presentation.. but it's half the story. BLE is specially desigend for small packets and not streaming applications. That's while both versions are important. You pick the version needed for your application. However, BLE is good enough for serial

It's crazy how simple this is

A video about security for projects using these boards would be interesting. Thank you for another excellent video.

have used several BT headphones 4.2 used much less power and would reconnect easily - i like

I just want to become an electronic engineer because of you

Here is the thing! Your videos are Amazing ! Super High Quality and very well explained!

Don’t know half the crazy tech wizardry you do, but I still find it interesting!

You forgot range and robustness. BT4 has gained robustness functionality, similar to features found in Zigbee, so it will keep connection in harsher environments like thick walls, through floors and long distances.

I'm 13 and in an electrical engineer geek and you are like my role model

BLE has the option to send broadcast packets without pairing, it's used e.g. for beacons or sensors.

Great video, anyway Ebay is full of HM-10 clones, beware of that. I spent a month finding why my diy e-longboard is not working, HM-10 clone...fortunately I found solution how to firmware upgrade it to the "original" HM-10 via Arduino and some Windows commands :D. You can detect fake HM-10 by missing external oscilator on the PCB...

How does an external bluetooth module like the ones in this video compare to built-in ones like in ESP32?

Thank you for the video! :) I'd like to contribute by sharing my own experience with Bluetooth LE and more advaced projects. I was supposed to make tiny coin-battery powered device, let's say some sort of a "smart sensor" - as it had PIC MCU, accelerometer and BTLE module. Bluetooth 2.0 uses good old serial COM port, so it is really simple to operate and use, especially when you can't use just pre-made terminals and have to create your own application to collect, process and save the recieved data. But Bluetooth 4.0 and higher are far more complex, although they still use UART in fact, it is not COM-port-based and that simple anymore.

I watch your videos very often. Great job. I like the ends all the time "Stay creative, and I will see you next time" of course with german accent :D

Hello Greatscott! This demonstration is really awesome. You have made many cool projects about wireless control or connectivity using those Bluetooth devices. That makes them fun and smart. But I think if you can make a projects about radio connectivity or control instead of using those Wi-Fi or Bluetooth devices, that also be awesome.

I love to see a blue tooth project that controls a remote headphone and microphone, like the cell phones control a blue tooth headphone. Most of the blue tooth projects the device is controlled by cells phone.

Another thing to keep in mind if you’re on iOS, the Core Bluetooth framework is BLE-only, and gives you a bunch of control over the connection from inside your app.

Funny how the chip used in the bluetooth-module already has a micro-controller included that gives the arduino a run for its money :P 8/16bit timers, 8K Ram, I2C, USART, 12bit ADC - quit a decent thing.

The Most Professional Electronics KZfaqr Ever!!!!

Top man love watching your very interesting and inspiring videos....

I have been watching you videos from a very long time your videos are awesome and informative :) keep up the good work also today is my birthday

You may want to also note that HC-05 if fine for Android devices but will not pair with iOS. HM-10 will pair with both Android and iOS.

Some of the BT 4.0 BLE modules doesn't have an SPP mode, so you can't use it as a "wireless serial".

Since I have checked HC-05 works great, but not suitable for small battery application... Hm-10 has a lot of models with a lots of firmwares,so the best you can do is to use the command "AT+HELP", gladdly it will shows up all the commands implemented.... HC-05 to HM10 - Watch out not every Hm is pin to pin compatible. Hm10 - Once you power on, you're in AT commands mode, after pairing you automatically exit from AT command and gets into serial port mode.

I tried a Bluetooth 4.0 module for replacing the 2.0 one on my wirelessly-controlled RGB strip and on Windows computer it couldn't be connected as a serial port (maybe Bluetooth SPP or something), which made my existing code useless.

Thanks for sharing your experience trying to make an objective contribution I found quite pleasant the writing on paper bits that have added to your videos. 😎

Everyone:Multimeter Electroboom:Multimeta Great Scott:MULTIMUETAR

The funny thing is that these boards are all as programmable as the ESP8266 and ESP32's are. But the manufacturer hasn't been as community friendly as Espressif is. Which is kind of a shame.

Nice video! The biggest advantage for BLE is compatibility with iOS. For Bluetooth 2, you need to be in apple’s MFi licensing program, while anyone can create a BLE based app for free.

I've done an entire project on BLE in engineering school. It seems easy to use, but it sometimes work terribly bad, apps do not always pair or allow you to do what you want.. More advanced arduino projets using bluetooth can be a pain in the ass! Other than that, we did a few tests with it, and BLE modules seem to have globally the same range as bluetooth 2.0, they consume waaaay less energy (as you said, good for long lasting applications), and seems to be more reliable in terms of pairing

3:22 you missed the chanche to include the "hello there" - "general kenobi" meme

Not sure if this has been pointed out below but the BLE module you have is not a HM-10. It might be worth adding, although these boards use BLE technologies the UART layer hides it from the user. They are designed as a simple serial cable replacement the same as the HC-05.

This video is great. It really helps getting good details.

can you make an GPS traker? YOUR CHANEL IS THE BEST ELETRONICS CHANEL!

What is the range of this 4.0v (in meters) ??

I guess having extra security options could be useful. It is cool it has a wake up mode for projects where energy conservation is important.

While watching this video, i got an idea: maybe i can connect two phones to that system and find a way to send a message for one phone to another. I don't know if it's a good idea, but i think it's worth a try. I am not that good at software and hardware, but i would love to read your suggestions about this topic. P.S Maybe you should do a DIY or BUY episode on this.

I don't know if this board supports it, but the real power of BLE is GATT, which allows you to broadcast and receive data without pairing. Supposedly GATT also uses less power, but I haven't been able to measure it because I've only ever used it between Android phones.

This got me to buy the HM10 one, thanks a lot! looking forward to doing cool stuff with it

all in all it is the way forwards 4.0 headset lasts for many hours past a work shift ,it never runs flat like the 2.o ones used to do (for pro drivers on the roads who need headsets connected up all day then ,4.0 to 4.2 headsets are a must if you want to stay headphone connected up to your mobile and it last the full day DRIVING SHIFT ) so if your headset is 2.0 and does not last you a full day -simply look for the 4.0 headsets and this is just the start of a great new world in Bluetooth technology i give it the thumbs up

Hi Scott I caught on your channel pretty late, but was very impressed with the practical videos which have helped me a lot to understand the theory behind electrical and electronic texts. How can I contribute to support you on launching future videos?

Great Scott great video

Also consider only BT 4.0 and newer devices can be connected to iOS devices. So if you want communication between iPhone and lamp switcher - HM10 is a way to go.

I watch your videos for show of my self from my friends

thanks man u saved my life

Thanks Scoot!! really nice!

What kind of objektiv do you use for your close up shots? Great video btw!

Hello Scott! Great! But you didn't considered the other side, that is the phone. Doesn't it also saves lots of power there also? For continuous monitoring use, doesn't the phone runs cool when using the BLE? while it gets hotter on Bluetooth 2 based phones or running in compatibility Bluetooth 2 mode?

thanks for all

BLE != BT. In fact there're many BLE only chips nowadays which don't even support BT. If you really had been using HID/UART over BLE that'd be sort of exciting because I haven't seen it before due to BLE not being meant to be used as a (permanently) connected protocol.

You are missing GATT. BLE has support for GATT services. They can be setup so that they notify the master when their data has changed. So you can use it for sensors, so that you only pull the sensor value if it has changed. Also, you don't need to pair. If you get the MAC, you can (on android at least) just tell the BLE service to connect that that MAC and it will do so if in range. Not sure about 2.0, but on 4.0 BLE you can get up to like 450 meters rage with an SMD antenna. Source: I work with product development and has used BLE (HM-10 for pre-study and better one for actual products) as a part of my job.

Informative! Thanks for sharing your knowledge on this!

or you could bui an hc-05 bereaout board with the logic level converter built-in

What I know is the BT 4.0 shoul'd have much less power consumption. That's the main "policy" of BT nowdays. Not the speed. You can use the wifi for speed. It is for the lowest power consumption. The BT4 devices will stay online for over 1 year just with the button cell battery.

Very helpful, thanks!

Quality vids as always

Please make a video on HC-12... It says it can be controlled from a very large distance... About 1.8Km

What do you think about making a video about creating a 555 timer step up/step down converter? Also great video as always...

Great job! Thank you!

Loved it!

i watch every video you make

Where do you source your LiPo batteries? I'm nervous about trying ebay as a LiPo being roughed up on it's way from china is bad news..

Have you checked up to which distance your Hm-10 works?

Thx for your vids including this one. I thought a major advanyage of BT4.0 is multi connection support?

Hi @GreatScott! I hope you are well. Bluetooth 5.2 vs 5.0 vs 4.0 video content is expected😉

Ever going to make a video on more PCB design & etching and maybe autonomous rc Drone/airplane?

Nice video. About the round-trip delay measurement, Did you use Android's methods to get the current time? I think the whole Android OS timing is not exact to ms level, and also there is the non-real-time-ness of both transmitter OS (Android) and receiver OS (windows?). Maybe a better time analysis could be achieved by attaching a logic analyzer to RX/TX pins of transmitter and receiver modules. This way you can circumvent the OSes

I LOVE YOUR VIDEOS YOU ARE THE BEST!!!!!

Simple choice if you’re using iOS, Bluetooth 2.0 isn’t an option unless the implementation is part of Apple’s MFi program which means $$$ that the manufacturers of cheap boards won’t spend. No such trouble with BLE. So I can’t see why not just pick a board that works with both iOS and Android when that option exists, after all the cost difference is minimal unless you’re manufacturing at production levels. And in that case you will be looking at an on-board implementation anyway.

Everything in life should run on an ESP32. ;)

Can you make a video about connecting two HC-05 modules with each other?

The HM-10 presented here is one of the many "fake" ones. It is lacking the second crystal, which the original HM-10 has. Plus, it has a different firmware with many limitations, higher current in standby, very bad/badly tuned antenna and range, etc. However it can be flashed with the original HM-10 firmware, which eradicates some of these drawbacks.

A good reason to use HM-10 is because all apple devices only works with Bluetooth 4.0

please make a video on how to make a wired keyboard wireless using blutooth with least possible delay...

If you want to control your project with iOS devices using BT, BLE is the only option.

If you look very closely at 2:52... His Phone is at 69% lmao

ohh I finally had the time to see your video well. slow motion and subtitled because I do not know English very well (German even less). Excellent explanation but I can not make Arduino work: I bought a box of components with an arduino-one clone (Geekreit from banggood) and I downloaded IDE for ubuntu from the original site I installed it but even if the program recognizes the port and type of card does not load the sketch (the blink) have you heard of others having the same problem? thanks a lot for all your sharing.

can you recomend a chip for making a bluetooth headset?

You should take a look in the HID firmware capabilities in the HM 10 board.

You didn't mention anything about the operating distance of the two versions . There is a difference in case of range.

Useful info thanks! I would like to work on a Arduino/iPhone 8 project. Could you suggest a compatible bluetooth module?

This video should be enough for an electronics maker, but the video name is "Bluetooth 2.0 vs 4.0", so there should be covered many more things...

Please make a video on how to program arduino using Bluetooth module

Have you considered using such a BL device to power a relay, to turn on a lamp when you get home for example?

Great video scott! Can you make a gps unit as a gps tracker please?????

Can u make a video about the bluetooth functioning in bluetooth earbuds.

can you show us how to wire bluetooth to a keyboard? Use 2 Pro Micros as a HID controllers and two of those BLE modules to make ANY keyboard BT! :D

Could you do some sort of a SMPS build or maybe diy or buy SMPS?

I just played with the version you have - JDY-09 which can be also purchased as AT-09. The problem with this one is that you cannot initiate connection. There is a tutorial on how to flash the software to HM-10 software (on arduino forum) which has this functionality. It's a nice exercise to do it though after trying it with this particular board AT commands stopped working. I just ordered ZS-040 which was tested by few other folks and maybe it will be working. IMO it's also hard to say where to buy an original HM-10 board.

Thanks for the review. Is there a shutoff function on this device that I can control through an RC transmitter?

Grate Video.