This is the download page for Power Meter: a program developed to measure light intensity in experiments at undergraduate laboratories using an USB camera. The implementation of this program is described here.
Power Meter is avaliable for Linux® ia32 and x64 and Windows® 32 and 64.
Download the zip file containing the binaries below. There is no Windows® installer, just unpack ALL THE FILES in the Zip file to a local folder and run power-meter.exe.
Attention:
In new versions of Windows® it is not posible to run the program from external drives (USB flash drive, USB hard disk...).
On Linux® if the program opens but doesn't find the webcam run the program with the folowing command:
LD_PRELOAD="/usr /lib /x86_ 64 -linux-gnu /libv4l /v4l1compat.so /usr /lib /x86_ 64- linux-gnu /libv4lconvert.so.0" ./power-meter
Replace the location of v4l1compat.so and libv4lconvert.so.0 to match your system. You can use the command locate to find were this files are.
File's hash:SHA1::.
6f54bf6352ad7f866 55b6e94663d257bb1bd237a powermeter-l32.zipFile's hash:MD5::.
ac45fd323e2618f6d5 0d0a970f3edc4c powermeter-l32.zip Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries.