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July 23, 2011
about 6 months ago
Someone needs to go through setting up the Hack RF with the software on a computer. All the instruction start off assuming you are already running Pentoo and GNU Radio. I had no idea that it was going to be so painful getting this thing set up.
about 8 months ago
Dose anyone know where the equation for altitude from pressure on page 14 of the data sheet came from? When I ask the sensor for the pressure and then calculate the altitude using on-line calculators I get my altitude. When I use the equation (or let the sensor use the equation I get the same result but its way off from my actual altitude 196m (sensor) vs. 262m (from map)
about a year ago
Has anyone had luck with this and a raspberry pi? I’m getting communication errors even with an external power supply.
OK I worked through it:
first download these files:
the files are found on the websites:
then run the commands in this order:
sudo dpkg -i digilent.adept.runtime_2.16.1-armhf.deb
sudo dpkg -i digilent.adept.utilities_2.2.1-armhf.deb
sudo dpkg -i digilent.waveforms_3.4.7_armhf.deb
then plug in the Analog discovery with waveforms running.
Now I’m having trouble with the power requirements
Has anyone had luck installing waveform 2015 on a raspberry pi? I put it on my Linux PC with no problem. But the install fails on the pi.
about 2 years ago
Question: What dose the raw data look like from this? Is it already scaled from hottest to coldest? or is the raw data from each pixel the temperature in Celsius?
Say I wanted to know the temperature of something in the view would I have to know some reference temperatures also in view?
about 3 years ago
I’m getting the same problem, do you remember what you did to fix this?
about 3 years ago
I’m trying to characterize these sensors so I set up a little experiment with soil from my garden. I took a soil sample and dried it in the oven (before my girlfriend woke up and found out what I was doing in the kitchen). I let it bake at ~150F for an hour occasionally mixing, this seem to produce very dry soil. I made a Mariotte’s bottle out of a water bottle to provide a constant yet very slow way to add water to the soil. Here is a quick picture of the soil in the bottom half of a Gatorade bottle with the constant flow water bottle on top. The issue I’m having is that the soil water content doesn’t seem to correspond linearly with sensor output voltage. At some point it jumps up to ~4.7 V and stays there. Her is my recorded data of sensor output voltage vs time and the approximate moisture content of the soil vs time. Are there any soils experts out there that could chyme in, I’m quite happy with the little sensors I’m just trying to get the voltage to water content relationship established before deploying them outside.
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about 3 years ago
Here is my use of EL wire to make the Neon bible logo for an Arcade Fire show
I had a battery and switch in my pocket to turn it on and off.
about 4 years ago
I think I want to replace the 16MHz resonator with a 14.7456MHz one to work with my programmer. Dose anyone know the resonator package style used on this? I’m poking around and I cant seem to find a resonator / crystal that is the correct size or close enough. The eagle files don’t say much about the package. THANKS
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