Raspberry Pi & Bluetooth LE part 1 with Tony D! @adafruit
ฝัง
- เผยแพร่เมื่อ 8 ก.ย. 2024
- Live stream to / adafruit introducing Bluetooth Low Energy and how to compile and use bluez on the Raspberry Pi. Part 1 in a multiple part series diving into BLE & Raspberry Pi.
Resources mentioned in the video:
- Smart Bulb Colorific: www.amazon.com/...
- BLE intro slides (PDF): www.dropbox.co...
- Getting Started with Bluetooth Low Energy (book): www.adafruit.c...
- Bluetooth Special Interest Group homepage: www.bluetooth....
- Nordic nRF Master Control Panel app: www.nordicsemi...
- Reverse Engineering a Bluetooth Low Energy Lightbulb guide: learn.adafruit...
- Introduction to Bluetooth Low Energy guide: learn.adafruit...
- Bluetooth 4.0 USB dongle (Pi friendly): www.adafruit.c...
- Bluez Homepage: www.bluez.org/
- PiBeacon guide: learn.adafruit...
Acknowledgements:
- Music: bartlebeats
- Intro shuttle footage: NASA
- Intro fonts: Typodermic
- Intro inspiration: Mr. Wizards's World
- Matrix background: cool-retro-term & cmatrix
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Join our weekly Show & Tell on G+ Hangouts On Air: adafru.it/showtell
Watch our latest project videos: adafru.it/latest
New tutorials on the Adafruit Learning System: learn.adafruit....
Music by bartlebeats: / bartlebeats
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Thanks a ton.
I have been trying to connect to my miband4 for days. After seeing your video I finally got the data.
Thanks again.
This was so helpful getting an understanding of how BLE works. I decided to let go off the stupid NodeJS BLE modules that only return errors and try to directly access bluez via D-Bus :))
Extremely helpful. I've been fighting to get Bluez configured correctly for a while. Your explanation and tips showed me where my problem was and where the docs were out of date. Looking forward to part 2.
Tony - VERY helpful. Looking forward to the next one, and more about D-BUS vs. trying to 'script' BlueZ. I would have never gotten as far as I did w/o having watched your video; I paused it and took my RPi through the steps with you and that was GREAT! Keep it comin' !
Awesome video! Still basically valid in 2019. Great work!
thank you for this video. I have been trying to figure out bluez for a while now and it has been a headache. I learned allot more from this video than I was expecting. please, more videos on bluez.
just when my raspi3 arrived last week, i immediately configured ssh via bluetooth into it. The idea is, once i bring my raspi3 outside, then i ssh via bluetooth into it, and from the ssh shell i then configure wlan0 to the correct ESSID and from there i can connect into my raspi3 over wifi. Bluetooth is the only easiest way to make this happen for raspi3. No klunky keyboard/hdmi/mouse needed to attach to raspi3. Just enable tightvncserver, and vnc connect to view the GUI.
i was a core Bluetooth stack developer back in 2007 and intimately familiar with BT spec particularly the SDP and its cool data types. We had our own core stack in multithreaded C (from hci,rfcomm,l2cap,profiles*) buried deep into an RTOS kernel. But then, i have always remembered how BlueZ earliest versions was very useful during those time to inquire/check our implementations. We debug OTA packets using Merlin hardware sniffer and another USB-based sniffer i forgot the name.
I just revisit Bluetooth this month and notice 'pand' is no longer in latest BlueZ. But I see, the nice bluetoothctl tool. Anyway, to enable ssh login over Bluetooth I do it very roughly by creating a startup script in raspi3 that BT connects (test-network xxxx) into my laptop and this results bnep0 interfaces to get created in both ends. The raspi3 script then `ifconfig bnep0 xxxx/24` and from my laptop i do the same. From there, i ssh into raspi3.
I came for the bluetooth tutorial and he sold me the game "Another world". This man should do lets plays :)
Very Educational. Learnt something about Bluetooth LE and Linux compiling :)
Nostalgia intro FTW!
Tony, Great video. Thanks for putting this together.
Well I am writing some code with Estimote using Raspberry PI. The video is very helpful. Thanks a lot.
great video dude!
Pure gold, esp that 0x thing). Thanks a lot!
This is very awesome thank you Tony D!
What is interesting to me is how disorganized software is , that there is a maze of gates you need to go through before you can get anything to work. Why isn't the installation process more complete where it automatically grabs all the necessary files required automatically. Your trail for getting this all set up is interesting and how did you know which glib option to choose? How do you get to know what you don't know without spending days reading to find out?
Get help! Small note for us older fokes with glasses: increase the font size on your RaspberryPi terminal.
This was very helpful. Thanks so much
i have working some small stuff , i am beginner in bluetooth BLE i try to read data from beacons how to read ACC data from beacons
Nice tutorial. While following your instructions, I don't receive the same result in 1:07:38.
I use RPi 3 (Raspbian Jessie 4.4 installed) and configured the experimental mode.
However, when I type help command after "$ sudo bluetoothctl", there is no command such as
"list -attributes" or
"select -attributes".
Can you help me out with this?
Hi! Ever run across the issue where rpi3 connects to a blessing device and lists it's services via bluetoothctl but is unable to connect to a service via Bluepy because it can't "find" the service?
this is so great, thank you very much
Why would you need the Bluetooth dongle? Doesn't raspberry pi 3 already have Bluetooth incorporated?
It would be great to see an updated video where you setup the PI as a BLE Peripheral. Using things like menu gatt. etc. bluetoothctl is a nice app, however it is sooo horribly documented.
Hey tony, Do we need to uninstall default bluez 5.23 before installing latest version? After following your guide, hciconfig shows nothing. I also googled this issue and came to know that some users had this problem. Any suggestions? Thanks for the great tutorial
I´m also googeling for this, did you find an answer?
No, Didnt find solution.
Raspberry pi 3 B - Bluez-5.43. I had to rfkill unblock the device to power on. So far the only real issue. - - so far
Hello Sir, can you help mehow to make notice or sentence in BlueTerm’s layer. For the example “Klik 1 to Turn On LED or Klik 2 to Turn Off LED”
Hopely you can help me. Thank you….
I was doing for the ble-beacon but it after connecting when I'm using "list-attributes" it is not giving me anything .
Thanks Sir for this detailed video. Really very helpful.! (funny game :) )
please help me in checking battery of my bluetooth headset when running bdus bluez i'm getting error that it is not built with -rdynamic and cannot backtrace.currently thanks using linux mint cinnamon
Can you help with a Raspberry Pi/Bluetooth project?
Can you please help me?
After rebooting my pi bluetooth does not work anymore. Bluetooth service seems to be enabled but not active.
Tony after I install and run the Bluetooth status command it say masked instead of loaded
Looks attractive, but yes, I still need the following:
Is it possible to use a single Rpi as a server for 2 to 10 clients (sensors and activators, wired to dedicated - one per a client - local RpiZeroes )? That is just simple star connection.
Relatively low bandwidth is OK.
Thank you
+hsavr Bluetooth LE could work but you'll need to connect to each device periodically and send/receive data. From what I understand right now on the Pi you can only connect to one Bluetooth LE device at a time (later BLE spec changes I think allow multiple connections, but I don't think that's trickled down to bluez and the Pi yet). So you'd want to do something like round robin connecting around to each device at some frequency to check if there's any new data from the device.
Alternatively you might look at something that's wifi and TCP/IP-based. You could definitely do much more advanced network configurations and have multiple connections to devices open at the same time. The tradeoff is that wifi is usually more power hungry (but if your devices are plugged in it might not matter as much). Good luck!
+Tony DiCola Hiya, I just wanted to share that connecting to more than 1 BLE peripheral on the Pi is possible.
I've done it by spawning multiple gatttool processes from Python and also using NoBLE in NodeRED (tested up to 3 or 4 connections) via WebSocket calls from Ruby (Sonic Pi).
For example some dancing robots of mine vine.co/v/eMe1O3wnW0H.
I seem to recall the spec says a Central should support up to 8 devices, but software, hardware and my memory varies :)
All the best
Wayne
Is BLE suitable for sending large amounts of data, i.e. pictures of a couple of megabytes?
Did you watch the video?? Your question is clearly addressed - even fairly early into the video.
whenever I try searching the status of the Bluetooth it gives me a failed to dbus: no connection to service what should I do
Can I write a python script to control an hm10 connection to another bt device in order to send it ascii commands?
what is CSR ?
I watched a few BLE videos and from what I've gathered it doesn't sound like BLE has a lot of security. I'm trying to control my BB-8 from a Raspberry Pi but when I run the connect command I get an error (can't connect). Any idea why? I thought I was using Bluez but I'm going to compile and try again. I bought the BLE Sniffer and can see commands between my phone and BB-8 just can't connect to BB-8 from my Pi.
+dustin evans It could be that the BB-8 pairs with your phone and will only listen to it. See if there's a way to reset or unpair the BB-8 and then try connecting to it with a BLE tool. Yeah there are some security extensions to BLE from what I understand, but I don't think they've gotten support for them into bluez yet (but could be wrong--it's a little hard to tell exactly what bluez supports).
Why using a Bluetooth dongle? Isnt this unecessary since raspi3 has one onboard?
yup true
Your voice is identical to joe satriani
You look like Anders Breivik.