Tuesday, November 24, 2009

Old Sealed Pb battery

I got the 12V 17Ah battery out of my storage, but it wouldn't take charge that well.

Well I got an 50R dummy load, it got used as load, then added another one in parallel.

Charge using a regular car battery charger, then when it was full decharging using this load.

I have lost count of how many times i've done that so far. Though it seems to take longer and longer to decharge every time.

Now i have added in parallel 2 100R and one 160R power resisters.

It seems to how the power very well now.

With this load the current should be between ½A and 1A, not the highest, need to dig around to see if i have more power resistors laying around.

Thursday, November 12, 2009

FreeBSD installer on USB Stick

This info was made by miwi though i found it on freebsdnews.net

dd if=/dev/zero of=/dev/da0 bs=1k count=1

bsdlabel -Bw da0 auto

newfs -L FreeBSD /dev/da0a

mdconfig -a -t vnode -f 8.0-HEAD-20090609-JPSNAP-i386-dvd1 -u 0

mount -r -t cd9660 /dev/md0 /mnt/iso

mount /dev/da0a /mnt/USB-Stick

cp -RvL /mnt/iso/* /mnt/USB-Stick/

vi /mnt/USB-Stick/etc/fstab and put following in:

/dev/ufs/FreeBSD / ufs ro 0 0

And it works (8

Saturday, November 7, 2009

Playing with perler / pearls

Work in progress

This what we have to make it of

Lilgeek and I are working.