Wednesday, October 22, 2008

osx serial ports without minicom or microcom

this let me troubleshoot my serial problem (usb serial) without any extra software

screen /dev/tty.PL2303-0000101D 9600

Monday, October 20, 2008

Wednesday, October 8, 2008

Resol VBUS success

at last, the kind folks in Resol sent me the protocol specification for vbus

with openwrt and rrdcollect and rrdcgi, I can now graph the pumps and temperature information of my solar water system.

There is a bash script that collects from the serial port, decodes it , and then outputs the values to a file that rrdcollect parses. All good, some holes in the graphs, probably a bad awk in my script, to be investigated.

Once it's working reliably with no holes, I will try to post graphs here, somehow

EDIT: Now there is a google group http://groups.google.com/group/resol-vbus

EDIT: I wrote a utility to parse the data, seems to have gotten lost in the group, it's here https://code.google.com/p/vbusdecode/