Archive for March, 2009
Thursday, March 26th, 2009
Strobit early public release
The Eagle PCB design files are now available for download from the Strobit Project Page. Constructive feedback is appreciated. Please treat these as an early alpha release, the PCB has not yet been verified.
I have also released the design files for a blank personality board, this can be used as a starting point for any [...]
No Comments » - Posted in Projects, Strobit Triggr by Stephen Eaton
Monday, March 23rd, 2009
More E-TTL info from Bill
As mentioned in a previous post, Bill Grundmann has been documenting his investigation into Canons E-TTL protocol. Bill has just released a PDF summarising what he has found so far.
I’ve yet to go over it in detail, but for those looking at doing some E-TTL investigation of their own this document is a must.
http://billgrundmann.files.wordpress.com/2009/03/ettl_grundmann.pdf
No Comments » - Posted in Projects, Strobit Triggr by Stephen Eaton
Sunday, March 22nd, 2009
Strobit Project Groups
The Strobit Project now has some Google groups enabled. Feel free to join these and take part in the discussion. I will leave the old forums up for archival/historical purposes, but will become read only eventually.
See Strobit Project Page for the groups.
No Comments » - Posted in Projects, Strobit Triggr by Stephen Eaton
Saturday, March 21st, 2009
Arduino Shields with Real Personality
As one does while in bed at 3am and unable to sleep, I was thinking of the Strobit Triggr (which is probably why I couldn’t get to sleep in the first place) an idea presented itself for Arduino type shields (in particular Strobit Triggr personality boards) where they could be given some real personality.
Currently [...]
2 Comments » - Posted in Arduino, Embedded by Stephen Eaton
Friday, March 20th, 2009
Blog new name
As “Everything Robotics” just doesn’t seem to cut it anymore (I can just here the comments as people stumble across the site “hmm not much robotics happening here”).
The blog now has a new name “Strobotics” (Stro-botics) which seems to reflect the content a little better don’t you think?
A new domain strobotics.com.au is now active, [...]
No Comments » - Posted in Uncategorized by Stephen Eaton
Friday, March 20th, 2009
Strobit now has a Google Code Project home
The Strobit Triggr project now has a proper open source home, a Google Code project page – http://code.google.com/p/strobit/ If you think you can contribute please join the project.
Over the next few days as time permits, I’ll be adding everything I have so far to source control for the current design.
All hardware will fall under the [...]
No Comments » - Posted in Projects, Strobit Triggr by Stephen Eaton
Friday, March 20th, 2009
Canon E-TTL Timings
More success from Bill Grundmann in his attempt to decrypt Canons E-TTL protocol !
It appears that there is a consistent 4msec delay between when the CLK signal from the camera body drops to GND and when the actual flash is triggered. This would give us plenty of “leeway” in our timing to sync with the [...]
No Comments » - Posted in Strobit Triggr, strobist by Stephen Eaton
Thursday, March 19th, 2009
Strobit Triggr and Canons E-TTL
Seeing as I’m a canon person as far as bodies and lens goes I thought I’d look into the E-TTL protocol and how the camera body and the flash can talk to each other.
I’m not looking to completely implement the E-TTL protocol in the Strobit Triggr, (well not yet anyway), but more along the lines [...]
No Comments » - Posted in Projects, Strobit Triggr by Stephen Eaton
Thursday, March 19th, 2009
Eagle3D + Sketchup Updates
I’ve put all the newer components online, sketchup models are now in googles 3d warehouse and Eagle3D added to the existing library.
No Comments » - Posted in Eagle3D, sketchup by Stephen Eaton
Sunday, March 15th, 2009
Strobit Final Shots
Here are the final renderings from POV with the basic personality board installed, along with a 900MHZ antenna. I’m pretty happy now, looks OK and now will see how accurate this exercise really is when I get prototype boards back.
No Comments » - Posted in Eagle3D, Projects, Strobit Triggr by Stephen Eaton
Sunday, March 15th, 2009
Eagle3D Library Update
Some more components added to the Strobit Eagle3d Library. Can be found here.
Sparkfun SMA PCB Edge
3.5mm Phone Jack SMD
No Comments » - Posted in Eagle, Eagle3D, Embedded, Tutorials by Stephen Eaton
Wednesday, March 11th, 2009
Strobit Board – some minor tweaks
Ok not quite finished, but almost there! I’ve had to make a few minor changes. I’m glad I’ve taken the time to learn and play around with Eagle 3D, it had highlighted some potential clearance problems. Rather than rush things I’ve decided to take a bit of time modelling than fork out my $$$ and [...]
No Comments » - Posted in Eagle, EbayTrigger, Embedded, Projects, Strobit Triggr, strobist by Stephen Eaton
Wednesday, March 11th, 2009
Initial release of the Strobit Eagle3D library
Strobit Eagle3D Library now available for download….see Eagle3D Page
No Comments » - Posted in Eagle, Embedded, Projects, Strobit Triggr by Stephen Eaton
Sunday, March 8th, 2009
Boards so Far
HopeRF 433Mhz / 915Mhz
Experimental 2.4GHZ
1 Comment » - Posted in Eagle, Projects, Strobit Triggr by Stephen Eaton
Sunday, March 8th, 2009
Strobit Google Sketchup Models
I’ve been playing around with Googles sketchup over the weekend and have created some components, one the RFM12B module and a basic camera hotshoe to scale. It’s been a great little exercise in learning both Alibre and Sketchup as I’ve been wanting to get some 3D modelling practice, I’m finding that it’s easier to create [...]
