Sunday, 26 January 2014

Razberry: lets do temerature logging and a graph...

I've just updated to a recent 1.4 snapshot and added in HABmin to the config without any real difficulties, so time to see if I can persist the temperature data and do a graph I think.

Saturday, 4 January 2014

oh yes, balls are the way to do it

or the use of styrofoam balls to evaluate light sources.

After thinking about ways to evaluate softboxes, brollies and the like, I decided to try polystyrene balls as a target to better see what is going on and it works really well.

 Here is a set of balls I got from hobbycraft - middle sized and big ones alternating - hanging in front a bare naked flash (Yongnuo 565), set to 24mm with the diffuser in place.

The balls are all lit with a hard edge around the circumference of each ball, there is a little reflected light showing from the white ceiling and other balls, but not enought to matter really. Below is a zoom in on the centre 3 balls.

Thursday, 2 January 2014

CrashPlan on Raspberry pi - not such a good idea?

I continued to try to make Raspberry Pi with CrashPlan a viable backup server, but after running it for a few days and looking for various ways to  make it more robust, I've decided to give up on this and run CrashPlan along with a few other services on a baby server. Explanation follows.....