I know there are many threads on this but I am very confused so if someone can help me out I will really appreciate it because nothing seems to work.
I wired a DD-WRT router (e1000) to arduino via serial and I want to pass data( like packages TX/RX) from the router to the arduino. Where shall I start? What is the logical sequence because for example when I login via the terminal (mac) to my router and try to echo to arduino nothing happens.
please help. thanks
ok I did the following:
I run this in arduino:
void setup(){
Serial.write("Hi, I am alive!");
}
void loop(){
}
and then I SSH to my Router and type in:
cat < /dev/cua/1 and I get : -sh: can't open /dev/cua/1: no such file
and also tried this:
cat < /dev/tty.usbserial-A9007VSI and I get : -sh: can't open /dev/tty.usbserial-A9007VSI: no such file
I saw this post here which was helpful but still I can't tx-rx between arduino and my router:
http://forum.arduino.cc/index.php/topic,39610.0.html
can somebody please explain. Thanks!
a bit of progress; with this code I am able to read and write from/to my terminal:
arduino code:
int incomingByte = 0; // for incoming serial data
void setup() {
Serial.begin(115200); // opens serial port, sets data rate to 9600 bps
Serial.write("Hi, I am alive!");
}
void loop() {
if (Serial.available() > 0) {
// read the incoming byte:
incomingByte = Serial.read();
Serial.print("I received: ");
Serial.println(incomingByte, DEC);
}
}
by using these commands on my terminal
to write: echo "Here I am" > /dev/tty.usbserial-A9007VSI 115200
to read: screen /dev/tty.usbserial-A9007VSI 115200
but when I SSH login to my router the above commands do not work,
when I try this command:
echo "Here I am" > /dev/tty.usbserial-A9007VSI 115200
I get this message:
-sh: can't create /dev/tty.usbserial-A9007VSI: Permission denied
any hint how to write to serial from within my dd-wrt SSH login much appreciated
when I SSH login in my router and I execute this command (in purple):
root@DD-WRT:~# ls /dev/tts/*
I get this:
/dev/tts/0 /dev/tts/1 /dev/tts/2 /dev/tts/3
are these the ports?
I tried all of the following from my router's login but I don't get anything on the arduino serial monitor:
echo "Here I am" > /dev/tts/0 115200
echo "Here I am" > /dev/tts/1 115200
echo "Here I am" > /dev/tts/2 115200
echo "Here I am" > /dev/tts/3 115200
any help appreciated
Do the popularity search at Google
"dd-wrt arduino" About 47,500 results
"open-wrt arduino" About 150,000 results
open-wrt arduino is three time more popular than dd-wrt arduino.
reflash e1000 to open-wrt and start over.
http://wiki.openwrt.org/toh/linksys/e1000
E1000 has Broadcom 47162@300MHz use 3.3V TTL level, the level converter might needed.
Plan A~E
http://forum.arduino.cc/index.php?topic=169537
Serial
The serial pins are labeled JP12 thru JP16.
VCC JP12
TX JP13
RX JP14
Gnd JP16
thanks a lot for the response and the hints. do you see anything wrong with the wiring in the attached image. any suggestions on the 'echo' command or how else can I verify that my serial works?
I am using this level converter:
The wire look OK to me.
The op is right. DD-WRT has got several negative points, and this one is just one in a series. For starters, you can see that its not really an open source solution, even at the filesystem level, not even ipkg works as in open distros. I have spent by now several months trying to make a fon both, a wireless client bridge and being able to unbind the serial console without success. I have flashed several diferent distros but none of them allowed for both.
OpenWRT failed on the client bridge, whereas dd-wrt fails on the most basic thing, which is to allow for the console to be unbound.
http://www.manifestdensity.net/2009/05/11/giving-up-on-dd-wrt/
I use all three major open source router OS;- dd-wrt, open-wrt, tomato.
tomato for dual wan (more than one internet service provider).
dd-wrt for home basic router.
open-wrt for Arduino.
It is just matter of mouse click to change OS, why not?
thanks for the response. It is def a good option but I have a lot of code from other projects running on dd-wrt/e1000 which I guess I will have to modify for the open-wrt. If I won't find a solution with the dd-wrt, I will try open-wrt. I am just not that familiar with linux so the syntax might be wrong?thanks for any hints.
additionally to the commands I wrote above here is what I am using(in red) from my SSH login but I still can't 'echo':
root@DD-WRT:~# stty -F /dev/tts/0 raw
root@DD-WRT:~# stty -F /dev/tts/0 -echo -echoe -echok
root@DD-WRT:~# stty -F /dev/tts/0
and I get:
speed 115200 baud; line = 0;
intr = ^C; quit = ^; erase = ^?; kill = ^U; eof = ^D; eol = ;
eol2 = ; swtch = ; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
-brkint -icrnl -imaxbel
-opost
-isig -icanon -echo -echoe -echok
and then:
root@DD-WRT:~# echo "Here I am" > /dev/tts/0 115200
I get nothing on the arduino serial monitor
Your system has 3 blocks;-
Switch to open-wrt to test, if it work at least you have 2 out of 3 blocks, then switch back to dd-wrt.
My standard procedure is;-
lol I wish I could do this: 'Replace myself, let somebody else to do' but then explain to me howto.
I will give open-wrt a try. thanks!
