61–70 of 252 posts
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I hope to do a private release at the end of this month.
Earlier quoted context omitted.
The 5 V from the USB. Leave the opamp with it's ground connected to the joint between the two resistors, choose the bias so it drives the output from the -2.5 V the opamp sees (which really is the 0 from the computer) to the +2.5V (which is the +5 of the computer).
I'm only giving the circuit a cursory look, but I thought he wanted a 9V reference voltage added to the sensor voltage going into R7. But I guess a lower reference voltage may be adequate too.
The reason why I think it matters is that batteries are a nuisance, they run empty and will cause a problem with long running experiments, so it's worth the extra time to engineer them out of the circuit.
From what I can see they're only used to power the op-amp.
The 'floating ground' trick is s.o.p. when designing op-amp circuitry that needs to be fed from a single supply.
http://www.tripadvisor.com/restaurants
Building support for matrix datatypes and operations (arithmetic, eigenvalues, and factorization) in PostgreSQL. I think I will use the Gnu Scientific Library, but I am still looking around at options with looser licenses.
Try LAPACK. Incredibly fast, and a minimal license. You'll have to deal with FORTRAN, though.
Brick and Mortar startup, with online enhancements: Currently in the process of purchasing an art gallery space in Denver, which we will renovate, and hopefully open in the fall of 2010. (Would be sooner, but we are having a baby in the spring.) I intend to have an exhibition every 3 months that will seek to blend technology with a physical installation of some kind. Details TBD, based on online collaboration -- The…
http://github.com/meqif/0xCOFFEE
It's quite fun, but I had to fork llvmruby (the ruby bindings for LLVM), since it lacked some things, like allowing access to part of the LLVM API and raising RuntimeErrors instead of segfaulting (especially because of some code mutations that heckle[1] generates).
Currently, this is just a little project to keep me busy during the past holidays and the current university exam month, but I hope to create a nice language.
[1] http://glu.ttono.us/articles/2006/12/19/tormenting-your-test...