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Channel Changing and Scientific Atlanta 4250
http://forum.linhes.org/viewtopic.php?f=21&t=21883		 Page 1 of 1
Author:  falinskip [ Thu Nov 11, 2010 9:11 pm ]
Post subject:  Channel Changing and Scientific Atlanta 4250
Hi People,

Looking for some advice, I have a Scientific Atlanta 4250 and a MCE (2 port blaster), a serial blaster and a firewire cable. I would like very much to get channel changing working on the Scientific Atlanta 4250.

My perfered method would be IR blasting (I under stand it much better, but am still having a hard time with this new box). I only have one Scientific Atlanta 4250 and I am just looking to see if anyone out there has it working and what settings they used to get it working. Perferably in the simpliest method.

Any help would be appriciated.

Thanks,

Paul
Author:  falinskip [ Thu Nov 11, 2010 10:02 pm ]
Post subject: 
Here is some more information - my lircd log file is clean

change channel script
#!/bin/sh
REMOTE_NAME=Streamzap_PC_Remote
#sciatl_4200
cmd="$1"
#irsend SET_TRANSMITTERS 1 #this is the plug on the left when looking at the bac
case $cmd in
[0-9]*)
for digit in $(echo $1 | sed -e 's/./& /g'); do
irsend --device=/dev/lircd SEND_ONCE $REMOTE_NAME $digit
sleep 0.5
# If things work OK with sleep 1, try this for faster channel change$
# sleep 0.5
done
;;

*)
irsend --device=/dev/lircd SEND_ONCE $REMOTE_NAME $cmd
irsend --device=/dev/lircd SEND_ONCE $REMOTE_NAME OK
;;

/etc/systemconfig

#IR settings
Remotetype="streamzap"
ReceiverType="mceusb"
HDHRlirc_device="No devices found"
HostLircWait=""
ReceiverSerialport="ttyS0"
HostTransmitproto_1="sciatl_exp2xxx_3xxx_4xxx"
HostTransmitproto_2="sciatl_exp2000"
HostTransmitproto_3="none"
HostTransmitproto_4="none"
HostBlasterType="Serial"
HostSerialPort_blasterlirc="ttyS0"
Hostnumblaster="1"
rootSSH="1"

/var/log/lircd log fileNov 11 22:53:24 mythbe lircd: removed client
Nov 11 22:54:17 mythbe lircd: accepted new client on /dev/lircd
Nov 11 22:54:17 mythbe lircd: removed client
Nov 11 22:54:17 mythbe lircd: accepted new client on /dev/lircd
Nov 11 22:54:17 mythbe lircd: removed client
Nov 11 22:54:18 mythbe lircd: accepted new client on /dev/lircd
Nov 11 22:54:18 mythbe lircd: removed client
Nov 11 22:54:18 mythbe lircd: trigger

/etc/lircd.confinclude "/usr/MythVantage/templates/remotes/streamzap/lircd.conf.streamzap"
include "/usr/MythVantage/templates/transmit/sciatl_exp2xxx_3xxx_4xxx/lircd.con$
Author:  goofee [ Thu Nov 11, 2010 10:55 pm ]
Post subject: 
When I see your channel change script, it says 'REMOTE_NAME=Streamzap_PC_Remote'. That is probably the remote your using to control the mythbox, but it's looking for the remote name used to control the cable box. A quick peek in '/usr/MythVantage/templates/transmit/sciatl_exp2xxx_3xxx_4xxx/lircd.conf' shows that the remote name should be set to 'SAE8000'. Give that a try and see what happens.

Also, in case you weren't aware, if you look at the blaster through a digital camera or video camera it will pick up the ir signals as a flashing light so you can at least verify that your hardware is working. If that works but it doesn't change channels then it's probably sending the wrong codes.

Good luck.
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