Dev corner

Calling all engineers, tinkerers, hackers and geeks.

Mounting NFS at fluksometer.

I'd like to mount a NFS export on the Fluksometer to overcome capacity limitations. But I've had no success doing so, anyone doing this already?

I've installed and loaded the NFS kernel module (kmod-fs-nfs if I remember correctly). But when I try to mount with 'mount.nfs' the Flukso becomes unreachable, and sometimes reboots. To bring it back I need to power-cycle the Fluksometer.

I do see the mount request coming in at my server in the syslog. Any ideas?

How can the firmware work?

Take a look at http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_flashstrings

It seems to me that the flukso uC is suffering he same trouble. I don't know wiring/arduino development. But if I just run

  1. make
  2. avr-size bin/main.elf

I get

  1.    text    data     bss     dec     hex filename
  2.    2922     216     241    3379     d33 bin/main.elf

I get a RAM usage of nearly half ram (we only have 512 byte of ram in a ATMEGA48)

Extracting Measurement Data

Hi all,

I am currently working on a little experiment with the Flukso. As a prerequisite I need to store the energy consumption of my household in a database. I have enabled SSH on the Flukso WLAN interface as described here:

http://vanheusden.com/misc/blog/2009-10-11-flukso.php

I also use rsyslog on another machine to log the flukso lines in a FIFO file. Now, based on an email conversation with Bart, I have these pulse lines coming in:

Nov 11 12:58:10 192.168.1.101 flukso: received pulse from /dev/ttyS0: 0e0bb5a7cc5e4d1f127d81a1c1837c83:0000024739