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…
Read more →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…
Read more →After a week delay while the United States elected an authoritarian misogynist xenophobe (more on that in another post), CCP games will be releasing one of the most fundamental player-focused changes in EVE Online; free-to-play in the…
Read more →The mid-2016 driver experiments that followed the original LEDBrick: a 50-cent RT8471 budget buck driver with a PIC on board, Luxeon Z star boards with pie-slice thermal pours, and the LM3414HV MicroDriver — the seeds of what became BlueAcro.
Read more →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 →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.
Read more →The condensed story of the original LEDBrick — a squarish 8-channel LED pendant built around a 4.6″ heatsink and an 80mm fan: 38 emitters reflowed on a skillet, a custom LM3414 driver board, Bluetooth LE control from a Raspberry Pi, and a laser-cut acrylic case.
Read more →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:
Read more →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:
Read more →Service Discovery, to use the basic definition, is the mechanism in which services, residing at a non-static address, can be found on a computer network. There are, in a basic nutshell, three types of service discovery, modeled after…
Read more →This design has been on my back-burner for quite awhile, but its time to write it up and continue pressing on.
Read more →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.
Read more →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).
Read more →So, you have a Supermicro server somewhere remote. Thats cool, they have a nifty IPMI module (either bridged to the primary interface or on a separate port). One of the features is a remote IP-KVM over what is mostly VNC. Of course, you…
Read more →Effective August 15th, we will be closing the EVE-Central SMTP market push service (http://dev.eve-central.com/evec-api/startmail_smtp_push).
Read more →The EVE-Central API service was refactored on top of a new framework, both as an aid to scale (for performance reasons), and an exercise in using new tools for web development. Except for a few growing pains, the stack has been reliable…
Read more →To start, I moved all of the existing API documentation to the EVE-Central Wiki. You can find documentation (with less typos, etc) here:
Read more →I have just updated the servers used for the EVE-Central API calls. As DNS updates propagate, you will be running on a new stack which funnels requests between the old and new servers.
Read more →
