BlueMagic32 | Blackmagic Bluetooth Arduino Library

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Csaba Nagy

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BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostFri Nov 29, 2019 3:50 am

Since I’ve learned about the Bluetooth functionality of the Blackmagic Cameras earlier this year, I’ve sought to bring functional and interesting hardware/software implementations to these great cameras.

To help aid in the pursuit, I’ve been developing an easy-to-use Arduino library, to enable anyone to build their own Bluetooth controllers. From experienced programmers to newcomers, should be very flexible to use.

The library is still in development and will soon be available and I highly encourage people to extend/improve this library as they see fit when it becomes available. ( likely could use some under the hood improvements as It’s my first time developing C++ Library )

Here’s an early look at a really simple piece of demo code that can create a remote trigger with live timecode ( using a $15 development device ) and an example of an integration with a Samsung Gear VR Remote to control the camera. ( really cool possibilities with this as it has lots of buttons, a touchpad, gyroscope/accelerometer and is widely available and cost effective.)

Still working on adding an example or two, would love to hear what kind of examples you’d like to see included with the library and I’ll see If I can make those happen.

Last edited by Csaba Nagy on Wed Jan 22, 2020 1:14 am, edited 2 times in total.
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Brendan Dower

Blackmagic Design

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Re: BlackMagic Bluetooth Arduino Library | Early look

PostSun Dec 01, 2019 11:30 pm

Excellent Job Csaba!
We always love to see examples of what developers create with our products!
Brendan Dower
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Chris Maier

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Re: BlackMagic Bluetooth Arduino Library | Early look

PostMon Dec 02, 2019 4:39 pm

Hi Csaba,

great job indeed!
I am wondering why everyone is adding additional hardware to their circuits (e.g. M5StickC, WifiKit 32 or anything based on the ESP32 chip) to control the BMPCC.
Samsung VR remote or Tilta Nucleous Nano in another case.

I managed (with a ton of help!) to successfully add a cheap potentiometer to the board to control the aperture via Bluetooth.
Unfortunately I was still to busy to write better code to "debounce" the reading of the potentiometer.
I will be a long cold winter...
(The original controlling code was not written by myself! I am not sure if the kind developer is part of this community.)

I am really looking forward to see your library!
It would bet great to change the aperture via a rotary encoder instead of a potentiometer.
This might be more reliable.

I have just received my M5StickC today...

Thank you,
Chris
BMPCC 6K | BMD eGPU | Davinci Resolve Studio
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PauliJ

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Re: BlackMagic Bluetooth Arduino Library | Early look

PostSun Dec 15, 2019 6:54 am

Hello Csaba!

I'm really excited about this! I tried to do a simple ble controller for pocket 4k a year ago but got stuck in the bonding problems with nFR52 Arduino board.
So I'd love to see examples for bonding and sending simple commands for REC/STOP and manual focus. That would be great!
If you need a beta tester, I'm happy to help :)
Thanks for the awesome work in advance!
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insorior

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Re: BlackMagic Bluetooth Arduino Library | Early look

PostThu Jan 09, 2020 12:53 pm

Csaba Nagy wrote:Since I’ve learned about the Bluetooth functionality of the Blackmagic Cameras earlier this year, I’ve sought to bring functional and interesting hardware/software implementations to these great cameras.

To help aid in the pursuit, I’ve been developing an easy-to-use Arduino library, to enable anyone to build their own Bluetooth controllers. From experienced programmers to newcomers, should be very flexible to use.

The library is still in development and will soon be available and I highly encourage people to extend/improve this library as they see fit when it becomes available. ( likely could use some under the hood improvements as It’s my first time developing C++ Library )

Here’s an early look at a really simple piece of demo code that can create a remote trigger with live timecode ( using a $15 development device ) and an example of an integration with a Samsung Gear VR Remote to control the camera. ( really cool possibilities with this as it has lots of buttons, a touchpad, gyroscope/accelerometer and is widely available and cost effective.)

Still working on adding an example or two, would love to hear what kind of examples you’d like to see included with the library and I’ll see If I can make those happen.

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Csaba Nagy

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Re: BlackMagic Bluetooth Arduino Library | Early look

PostWed Jan 22, 2020 1:10 am

Pleased to announce to release of the BlueMagic32 Library! BlueMagic32 is an Arduino Library for controlling Blackmagic Cameras over Bluetooth Low Energy using an ESP32 device.

Link to library: https://github.com/schoolpost/BlueMagic32

Create your own Bluetooth control hardware that can control parameters such as:
-Recording
-Focus
-Frame Rate
-ISO
-Shutter
-Whitebalance/Tint

Use the provided examples and create a basic remote trigger in under 10 minutes! Watch the video guide and see for yourself.



As with any version 1.0; bugs and other quirks to be expected also some features are not yet fully implemented so be patient as they will be added soon. Please track bugs/problems with the github issues tool.

Can’t wait to see what everyone makes! ;)
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Xtreemtec

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostWed Jan 22, 2020 10:15 am

Great Work !! :D
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Chris Maier

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostWed Jan 22, 2020 2:57 pm

Thank you very much for sharing this with the community!
I will definitely try and compare this with my previous solution.

Chris
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kalinska

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostSat Jan 25, 2020 8:29 pm

Very good work. Correct operation with the examples provided and ease of implementation for a low cost.
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narimangafurov

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostMon Feb 03, 2020 2:54 am

Thank you friend! great work...already ordered M5StickC ESP32 and can't wait to try...
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Chris Maier

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostSun Feb 16, 2020 6:15 pm

Hi all,

just a quick hit, which would have saved me two hours...

If you follow all the instructions on OSX Catalina you will probably run into this error while uploading a Sketch to the M5StickC board.

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

I found the solution with a lot of searching the web (on a different computer, so I can not post the link).

The solution was fairly simple:
Just connect the port "G0" with ground "GND" using e.g. a paper clip.


BTW: Has anyone enhanced the capabilities of the sample code to controlling the aperture using rotary encoder?
This will be my next step.

Chris
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narimangafurov

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostMon Mar 09, 2020 7:22 pm

Chris Maier wrote:Hi all,

just a quick hit, which would have saved me two hours...

If you follow all the instructions on OSX Catalina you will probably run into this error while uploading a Sketch to the M5StickC board.

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

I found the solution with a lot of searching the web (on a different computer, so I can not post the link).

The solution was fairly simple:
Just connect the port "G0" with ground "GND" using e.g. a paper clip.


BTW: Has anyone enhanced the capabilities of the sample code to controlling the aperture using rotary encoder?
This will be my next step.

Chris


Could you briefly describe the procedure for setting up the M5StickC? I get an error ((
Arduino: 1.8.12 (Mac OS X), Board: "ESP32 Pico Kit, Default, 921600, None"

Sketch uses 967843 bytes (73%) of program storage space. Maximum is 1310720 bytes.
Global variables use 36064 bytes (11%) of dynamic memory, leaving 291616 bytes for local variables. Maximum is 327680 bytes.
esptool.py v2.6
Serial port /dev/cu.usbserial-79525604B4
Connecting......
Chip is ESP32-PICO-D4 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse, Coding Scheme None
MAC: d8:a0:1d:54:fe:00
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...

A fatal error occurred: Timed out waiting for packet header
A fatal error occurred: Timed out waiting for packet header

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
macbookpro 16, imacpro, macos 10.15.3, bmpcc4k, davinci resolve, finalcutprox
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Chris Maier

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostTue Mar 10, 2020 5:04 pm

Hi,

it seem that you are trying to flash the wrong board.
My Arduino IDE says "Board: M5Stick-C".

Try to follow the instructions step by step:
https://github.com/schoolpost/BlueMagic32

On OSX 10.14 it worked instantly (while the M5StickC was running).
For OSX 10.15 feel free to try my advice above.

I used this sketch:
https://github.com/schoolpost/BlueMagic ... a_Settings

Good luck - or send me a message.

Chris
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narimangafurov

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostTue Mar 10, 2020 6:05 pm

Chris Maier wrote:Hi,

it seem that you are trying to flash the wrong board.
My Arduino IDE says "Board: M5Stick-C".

Try to follow the instructions step by step:
https://github.com/schoolpost/BlueMagic32

On OSX 10.14 it worked instantly (while the M5StickC was running).
For OSX 10.15 feel free to try my advice above.

I used this sketch:
https://github.com/schoolpost/BlueMagic ... a_Settings

Good luck - or send me a message.

Chris

everything worked out! thanks a lot!
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Csaba Nagy

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Re: BlueMagic32 | Blackmagic Bluetooth Arduino Library

PostSat Mar 21, 2020 2:34 am

Here's an example of a Long Range Remote Trigger you can build using this library:

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