Hi, I've been using 1wire for a long time on a PC using a ds2480b based serial adaptor. My bus has become quite long and I'd like to split it up. A raspberry (b2) hanging around in the upper floor seems to be a good choice.
Now my Question: What is the easiest way to connect my 1wire bus? I'd like to connect some ds18s20 and ds2408 (lcd). I have samples of ds2480b and ds2482-800. I don't have a max3232 around to convert serial between 3,3V and 5V. Pin7 (GPIO4) is used by DHT22 humidity sensor, but possibly I can use another pin for that one. I usually solder using breadboard-pcbs and use old floppy cables to connect the chips like ds2408. So, to sum up: If I can build my 1wire bus with any of the above components I'd be happy if I get a schematic :) Oh, and before I forget: for the bus I need 5V, of course. I'm going to connect at least one hd4470 LCD with backlight. Currently I supply the raspberry with micro USB power. I think I can't draw a lot out of the GPIO 5V pin in this configuration, so most likely I'll have to move the power supply to the GPIO anyway. Any hints on that? Markus ------------------------------------------------------------------------------ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
