Le Mon, 2 Dec 2013 16:34:59 -0800, camden lindsay <[email protected]> a écrit :
> Hello- > > This transistor is an amplifier, but I believe it does the > level-shifting required to make this work. The signal coming out of > your board is 0-5V vs rs232 is -12 to +12 or something of that sort > (i'm no expert). ok need by BC337 as the same time of serial plug. > > As noted below the section with the BC337 ( > http://wiki.openwrt.org/doc/hardware/port.serial#from.a.pda.or.cell.phone.serial.cable) > and also above in a brief note, an cell phone adapter can be used. My > TTL<->rs232 converter is an old siemens cell phone data cable with the > wires hacked and some terminals crimped onto it. > > Yes, some level converter is obligatory for serial port to work ok need a max232 and that is beginning complicate. i see a usb key serial converter, this way is not more easy ? > > http://wiki.openwrt.org/doc/hardware/port.serial#level.conversion > > I'm unclear about what you mean in your p.s. > > hope this helps. _______________________________________________ openwrt-users mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-users
