Desra Blog

managed to get this done too, put a monitor in my fuse box ( ADM1.5TE) , cost WTDIN-M Digital input module ) to count the pulses and read them via serial. I also got some adm1d meters, haven't put them in yet, but hope to break out socket rings and lights from the overall total. Hats off the the kinds folks at jw instruments who sold and shipped them to me.

I heard of a book on RTE Radio 1 this week, called global Delights , a recipe book done by a school in Firhouse. I managed to get a copy and it's awesome, 10 minute recipes (mostly) and easy to obtain ingredients!

this let me troubleshoot my serial problem (usb serial) without any extra software screen /dev/tty.PL2303-0000101D 9600

The temperatures of my solar system And the pump speed

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/

so, turns out that socat on openwrt doesn't compile with serial support, and enabling it causes breakage :-( instead I am now using ser2net for the same function, on windows still using com0com and com2tcp, the resol windows software now talks to the controller via tcp and openwrt running on a box in the hot press com2tcp --baud 9600 \\.\COM44 192.168.205.222 2500

I have a board connected to my solar control (resol BS plus) via it's vbus interface. resol do windows software, so i want to redirect my windows pc to see my embedded board running dd-wrt , as its serial com2tcp does this on the windows side, and socat (see other post) does this on the linux side