Sorry about the ridiculous thumbnail - I assumed it would be reduced!
I used the instructions provided for the build phase.I raided the (grown-up)
kids Lego(tm) trove for the pieces and now have a tasteful red and black
- I have a set of Publiclab acetate collimation slits, and I'm currently using a 0.12mm slit which is the second narrowest in the set.
- I had a mini/phone paper spectrometer, so I cannibalised that for a Grating mount and liner. The liner is a necessary part, as I noticed a good deal of flare when testing (with an LED torch).
Hardware: Raspberry pi zero wifi version and the v2 (8M pixel) picamera.
Software: Raspbian Stretch - updated regularly - using the Core-electronics and Publiclab install notes, and RPi Cam Control v6.4.21, via a direct HTML interface. I have changed the default settings very little - just a 90degree rotation and turning on titles. I will try out the cedarlodge GUI when I organise a usb mouse/keyboard combo.
Below is an image for the CFL calibration test. I'm reasonably pleased at this result.
However, the image looks a little out of focus, and I would like to improve this - would a longer body (more Lego(TM)) help?