1. Home
  2. People
Avatar for boomNinjaVanish

boomNinjaVanish

Member since May 2021 • Last active Jun 2021
  • 1 conversations
  • 6 comments

https://dunlap.media
https://www.twitch.tv/twitchplaysthesynth

Most recent activity

  • Two way communication using Python (bleak) / Cannot discover services & characteristics
    in Puck.js, Pixl.js and MDBT42 •
    Avatar for boomNinjaVanish

    Great! Did you have to make the change I described above? If so I'll change the example code on the website

    Yup! That is what fixed it!

    I got the project to work the way I was expecting: the device may be flipped to turn the fan on and off and is controlled by a temperature. I used node with @abandonware/noble for the server like I wished! Now I know enough to make the project for my sister. I am super stoked!

    Thanks for the help! I now understand BLE two way communications!

    BTW -- if you want to post it as a project, I have the completed thermostat code and instructions here:
    https://github.com/boomninjavanish/motion-thermostat

    I will improve upon this project over time as I really needed the thermostat. (I plan on adding two more features to it soon.)

  • started
    • 8 comments
    • 3,443 views
    @boomNinjaVanish replied

  • Two way communication using Python (bleak) / Cannot discover services & characteristics
    in Puck.js, Pixl.js and MDBT42 •
    Avatar for boomNinjaVanish

    Does the code make the Puck's light flash?

    It flashed!

    And then use the code from https://www.espruino.com/BLE+Advertising­#node-js - either JS or Python. The first byte you get will be the button press count - so when it changes you can do your HTTP request - and the second byte is the temperature, so there's no need to request it - you just always have it available.

    I will give this a try tomorrow. Thanks for the help!

  • Two way communication using Python (bleak) / Cannot discover services & characteristics
    in Puck.js, Pixl.js and MDBT42 •
    Avatar for boomNinjaVanish

    Tried the example on the raspberry pi and got this output:

    ubuntu@boontoo:~/motion-thermostat$ node test
Noble: stateChange -> poweredOn
Found device:  45:73:5f:0c:0d:10
Found device:  64:2b:d2:47:bd:00
Found device:  cc:f4:11:98:5b:01
Found device:  05:c9:79:4c:61:39
Found device:  12:7d:20:2d:64:3b
Found device:  0e:a1:1e:0e:0e:c2
Found device:  75:d9:c4:33:59:a8
Found device:  58:c6:8d:82:1f:a2
Found device:  06:42:db:89:b9:90
Found device:  2f:6a:ef:b1:6d:d2
Found device:  74:2f:a8:98:9c:57
Found device:  78:02:b7:23:6b:c2
Found device:  49:92:1d:5b:82:d6
Found device:  4b:ef:f5:a0:e9:2a
Found device:  6b:73:24:90:68:e4
Found device:  ea:c5:8b:e0:a4:fb
Found device:  68:ce:65:cb:86:28
Found device:  0e:a1:1e:0e:0e:c2
Found device:  0c:80:5f:d6:bd:0c
Found device:  0c:80:5f:d6:bd:0c
Found device:  05:c9:79:4c:61:39
Found device:  90:dd:5d:e8:59:50
Found device:  54:e4:fc:4c:f1:9b
Found device:  0e:a1:1e:0e:0e:c2
Found device:  45:73:5f:0c:0d:10
Found device:  64:2b:d2:47:bd:00
Found device:  3d:7f:60:53:b0:7d
Found device:  55:2b:6a:2d:44:29
Found device:  5f:a3:6c:c7:29:84
Found device:  12:7d:20:2d:64:3b
Found device:  75:d9:c4:33:59:a8
Found device:  58:c6:8d:82:1f:a2
Found device:  06:42:db:89:b9:90
Found device:  2f:6a:ef:b1:6d:d2
Found device:  74:2f:a8:98:9c:57
Found device:  0e:a1:1e:0e:0e:c2
Found device:  62:5e:f6:87:87:d9
Found device:  45:9a:95:02:55:00
Found device:  05:c9:79:4c:61:39
Found device:  90:dd:5d:e8:59:50
Found device:  54:e4:fc:4c:f1:9b
Found device:  48:10:c1:2a:74:cc
Found device:  48:10:c1:2a:74:cc
Found device:  f4:fe:fb:c4:58:4e
Found device:  4e:b6:b3:37:6d:f9
Found device:  4e:b6:b3:37:6d:f9
Found device:  40:2d:01:84:21:eb
Found device:  08:a1:94:e2:dd:f7
Found device:  0e:a1:1e:0e:0e:c2
Found device:  0c:80:5f:d6:bd:0c
Found device:  69:be:d5:4e:3a:dc
Found device:  6c:ef:9f:dd:1d:ae
Found device:  64:2b:d2:47:bd:00
Found device:  f4:fe:fb:c4:58:4e
Found device:  55:2b:6a:2d:44:29
Found device:  67:8c:04:e3:bf:13
Found device:  67:8c:04:e3:bf:13
Found device:  90:dd:5d:e8:59:50
Found device:  7c:18:2f:c5:ce:04
Found device:  12:7d:20:2d:64:3b
Found device:  5f:a3:6c:c7:29:84
Found device:  58:c6:8d:82:1f:a2
Found device:  5f:a3:6c:c7:29:84
Found device:  45:9a:95:02:55:00
Found device:  61:d5:e4:67:76:80
Found device:  61:d5:e4:67:76:80
Found device:  68:ce:65:cb:86:28
Found device:  08:a1:94:e2:dd:f7
Found device:  90:dd:5d:e8:59:50
Found device:  f2:09:f2:78:7d:9a
BT> Connecting
Found device:  f2:09:f2:78:7d:9a
BT> Connecting
BT> Connected
BT> Connected
Disconnected
Disconnected
Disconnected
Disconnected
^Cubuntu@boontoo:~/motion-thermostat$

  • Two way communication using Python (bleak) / Cannot discover services & characteristics
    in Puck.js, Pixl.js and MDBT42 •
    Avatar for boomNinjaVanish

    Here is the output I receive when I run the example code on my mac. It hangs at the second "connected":

    ± % node test.js                                                                                                  !6614
Noble: stateChange -> poweredOn
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  be-89-30-00-21-95
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  90-dd-5d-e8-59-50
Found device:  90-dd-5d-e8-59-50
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  
Found device:  f2-09-f2-78-7d-9a
BT> Connecting
Found device:  f2-09-f2-78-7d-9a
BT> Connecting
BT> Connected
BT> Connected
^C

    EDIT: Changed the wording below to be less confusing.

    I am not making direct HTTP requests from the Puck but from a raspberry pi. How does one press a button on the device to trigger the HTTP request on the raspberry pi? Then after that poll the puck for the temperature?

    Sorry, I am new to BLE and have been confused by hours of reading about it.

  • Two way communication using Python (bleak) / Cannot discover services & characteristics
    in Puck.js, Pixl.js and MDBT42 •
    Avatar for boomNinjaVanish

    tl;dr version: how do I push changes to a central device (Raspberry Pi)? Libraries I have tried do not discover UART service and characteristics.

    Hi!

    I am working on a project to help my disabled sister to operate devices in her house on her own. I am planning on using a combination of the Puck's accelerometer and a Raspberry Pi running this project: https://webgazer.cs.brown.edu/#examples. I hope to publish this as open source so that others may use the project for their needs as well. (Products in the medical industry are VERY expensive. I am hoping that making some things available for free would help those who cannot afford an expensive solution from Tobii/Dynavox.)

    She cannot speak, walk, or move very well. However, she can make her Barbie dance by shaking it. I am hoping to harness that movement as an trigger for various home automation tasks in the future. My end-goal is to have her control everything in her environment. She would do this by gazing at the Raspberry Pi's screen to change which device/setting and shake the Puck to change the state of that device. She lives in an impoverished area without access to the internet, so I am looking to make a closed network of IoT devices for her.

    Right now, I am starting small: I am making the Puck act as a thermostat and controller for a fan in my kitchen using http get requests to IFTTT.

    After multiple hours of experimentation, I was able to get the Puck to receive commands from my macos device. However, I am having trouble figuring out how to have the server wait for a command from the the Puck. Is there a way to have the puck push data to the server? For example, if the puck has been flipped (accel.z < 0), I want to send an instruction to the server to shut off the fan. I also want to do this using as little power as possible.

    One last thing: I was able to get the bleak library to work on both macos and Ubuntu on the Raspberry Pi. However, when I attempt to discover services and characteristics, the Puck doesn't respond. I have tried multiple libraries in both node js and python to no avail. (I would love to use @abandonware/noble in node but I could not get that to discover the UART characteristics as well. ) EDIT: To be clear: it does TX and RX to and from the server but discovery doesn't work.

    Thanks for reading all of this. Here a link to the GitHub for the thermostat. I will make the eye gaze/motion project open source and available when I start it as well.

Send Message
Actions

About Terms of Use Privacy Policy Cookie Policy Report a problem