unknown
1970-01-01 00:00:00 UTC
Given that, if we remap the output, we should still get power if we output from the WRT54g only on the TX/RX pins.
What we would then have to use is a custom cable that maps the TX/RX pins from the WRT54g serial header to the DTR/RTS pins on the firecracker input. This way the WRT54g puts out signal on TX/RX and the firecracker sees those signals on it's DTR/RTS lines using a "trick" crossover cable.
Then we need the software to dump the commands (and therefore power) to the TX/RX pins of the WRT54g's serial header.
Does that make sense or am I still off base?
-Scott
----- Original Message -----
From: Scott Hiles
To: 'Junk Mail' ; wish-***@lists.sourceforge.net
Sent: Tuesday, February 22, 2005 10:08 PM
Subject: [SPAM] RE: [wish-info] CM17A on Linksys WRT54g router ?
You might be able to accomplish something if you rewired the CM17a, but as it stands, it uses the other pins of the DB9 for power and to control the signal. Even if you could rewrite the software to manage the interface in some way through the transmit and receive pins, the CM17a wouldn't respond or deal with the change. You are limited by the hardware design in this case.
Well, that's my simple opinion.
Scott
-----Original Message-----
From: wish-info-***@lists.sourceforge.net [mailto:wish-info-***@lists.sourceforge.net] On Behalf Of Junk Mail
Sent: Tuesday, February 22, 2005 5:22 PM
To: wish-***@lists.sourceforge.net
Subject: [wish-info] CM17A on Linksys WRT54g router ?
There's many uses for the Linksys WRT54G wireless router since they released the firmware under GPL license. People are writing custom firmwares & the router makes a perfect embedded system box. It has support for 2 serial devices onboard. There's tons of data on this all over the web and even basic firmware packages at www.openwrt.org
I am currently working on an project to turn the router into a wireless Reef Aquarium controller and datalogger. It's a Wireless Recycled Reef Controller (WRRC). Commercial solutions with minimal features that cost upwards of $700+. We are creating a low-cost feature enriched DIY alternative that's open to the entire community.
We are using 1-wire sensors commonly used in weather stations to input data into the WRRC, and I'd like to add X10 support to control lights, pumps, heaters, etc with the aquarium. Project info can be found here: www.bytality.com/wrrc/
The problem is that the serial output on the WRT54G board only has TX and RX outputs but the firecracker uses strobes from the RTS and DTR lines, which we don't have.
We don't have a Linux C programmer unfortunately, so we are not sure how to proceed with this obstacle. Is there any way the code can be written to use the TX/RX lines and then use a special cable from the header to the firecracker unit that crosses those lines back to DTR/RTS pins?
If **ANYONE** can help us out or even give us some advice, please email me at ***@srjava.cjb.net
Thanks in advance.
-Scott
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What we would then have to use is a custom cable that maps the TX/RX pins from the WRT54g serial header to the DTR/RTS pins on the firecracker input. This way the WRT54g puts out signal on TX/RX and the firecracker sees those signals on it's DTR/RTS lines using a "trick" crossover cable.
Then we need the software to dump the commands (and therefore power) to the TX/RX pins of the WRT54g's serial header.
Does that make sense or am I still off base?
-Scott
----- Original Message -----
From: Scott Hiles
To: 'Junk Mail' ; wish-***@lists.sourceforge.net
Sent: Tuesday, February 22, 2005 10:08 PM
Subject: [SPAM] RE: [wish-info] CM17A on Linksys WRT54g router ?
You might be able to accomplish something if you rewired the CM17a, but as it stands, it uses the other pins of the DB9 for power and to control the signal. Even if you could rewrite the software to manage the interface in some way through the transmit and receive pins, the CM17a wouldn't respond or deal with the change. You are limited by the hardware design in this case.
Well, that's my simple opinion.
Scott
-----Original Message-----
From: wish-info-***@lists.sourceforge.net [mailto:wish-info-***@lists.sourceforge.net] On Behalf Of Junk Mail
Sent: Tuesday, February 22, 2005 5:22 PM
To: wish-***@lists.sourceforge.net
Subject: [wish-info] CM17A on Linksys WRT54g router ?
There's many uses for the Linksys WRT54G wireless router since they released the firmware under GPL license. People are writing custom firmwares & the router makes a perfect embedded system box. It has support for 2 serial devices onboard. There's tons of data on this all over the web and even basic firmware packages at www.openwrt.org
I am currently working on an project to turn the router into a wireless Reef Aquarium controller and datalogger. It's a Wireless Recycled Reef Controller (WRRC). Commercial solutions with minimal features that cost upwards of $700+. We are creating a low-cost feature enriched DIY alternative that's open to the entire community.
We are using 1-wire sensors commonly used in weather stations to input data into the WRRC, and I'd like to add X10 support to control lights, pumps, heaters, etc with the aquarium. Project info can be found here: www.bytality.com/wrrc/
The problem is that the serial output on the WRT54G board only has TX and RX outputs but the firecracker uses strobes from the RTS and DTR lines, which we don't have.
We don't have a Linux C programmer unfortunately, so we are not sure how to proceed with this obstacle. Is there any way the code can be written to use the TX/RX lines and then use a special cable from the header to the firecracker unit that crosses those lines back to DTR/RTS pins?
If **ANYONE** can help us out or even give us some advice, please email me at ***@srjava.cjb.net
Thanks in advance.
-Scott
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