Design Log: blueAcro Power Bar and Sensor Updates
Some updates for products over at blueacro.com - mirroed from Reef2Reef
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PurpleAir Sensor Investigation and Teardown, Pt1
With the ongoing poor air quality all over Central California due to the Camp Fire, the interest of providing fine grained and reliable air pollution measurements peaked. One of the interesting providers of data is the website…
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Simple CO2 Solenoid Carbon Doser Project
Controlling pressurized carbon dioxide (CO2) delivery into a Calcium reactor or into a planted tank with precision can be fraught with problems. The conventional mechanism is to use a needle valve after a pressure regulator - this…
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Spectrometer Pt 2 - Driving
First things first, we need to figure out how to drive and read the spectrometer. There are two key diagrams to consult - the suggested application and the timing diagram.
Read more →Spectrometer for LED lighting analysis
Hi! You may remember me from other threads like LEDBrick DIY puck and high density stars, plus drivers (now available on blueAcro.com and the Apogee sensor PAR interface board.
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Design Log: LEDBrick Acrylic Enclosure
I spent some time mocking up a case for the lights. I'm not totally happy with the side panels yet (more on that later), but a quick walk through the process:
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Design Log: LEDBrick - part 2
Nearly 6 months later, and after back-burnering the project multiple times, I've made some significant progress on the LEDBrick aquarium light. In the space between blog posts, I've:
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Design Log: LEDBrick Aquarium LED Lighting
This design has been on my back-burner for quite awhile, but its time to write it up and continue pressing on.
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Design Log: NixieView
As part of an effort to share more designs, I've decided to start writing a continuing series of blog articles on my hardware design efforts. This first article covers the NixieBoost of a NixieView.
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HP5314a teardown
I got this unit for free recently, and decided to do a teardown for all fans of various vintages of test equipment. It is functional, but the buttons on the unit are absolutely terrible (hard to push, don't stay pushed, etc etc).
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