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The power supply has been fitted and wired up, as have the pass through connectors for Ethernet and USB. Now all that remains is the Pi.
Optical time-lapse video from a Raspberry PI
Hostname: xenon
Run Time: 1446666331
Sunrise: 2015-11-04 14:45:31.849849
Sunset: 2015-11-04 18:02:27.000002
delta: 5.00 seconds
Captured Time: 2015-11-04 18:02:35.406705
Youtube: youtu.be/NfTWNDnE-Rw (higher resolution and nicer playback)
Raspberry Pi Zero 2 W is here! We did a 2am video and more :) AND! Sign up now to get it immediately once it arrives!
Design Files Here: www.thingiverse.com/thing:566664
Available to Purchase:
builttospecstore.storenvy.com/collections/13701-all-produ...
How to create a time lapse video with Raspberry Pi
If you would like to use this photo, be sure to place a proper attribution linking to xmodulo.com
Power-over-Ethernet is used so that only a single Ethernet cable is needed. The red PCB contains a logic-level translator for the I2C bus and a real-time clock. The fluxgate magnetometer sensors and analogue to digital converters (ADCs) are buried in a soil pipe at a depth of 0.85m for temperature stability.
This is the original prototype version. The single power supply is susceptible to voltage sag under CPU load, which causes downward spikes in the magnetometer data. A newer design uses a DC-DC converter and linear regulator to derive a stable 5V analogue supply.