I have the POE working on the Linuxstamp. I’ll go through all of the equipment that I am using. To supply the power I looked at POE injectors, but they didn’t seem that economical for one port so decided on the Trendnet POE switch. It has 4 POE ports and 4 regular ports. Next is the ethernet connector on the Linuxstamp. After much looking I found this Pulse Jack. The only thing I don’t like about it is that it is over an inch long. All the jack is doing is bringing out the centers of the primary transformers (where the 48v is). I then run the 48v to a prototype motherboard where I have the Ag9050. The Ag9050 is an isolated 48v -> 5v POE module. The only other component is a 470uF cap on the 5v output of the Ag9050 (Linuxstamp 5v input). Now the Linuxstamp can run without a wall wart.
January 25, 2009 at 4:44 am |
Hello, Great stuff! I have a question that is a bit off topic though. Is there a way to possibly power the stamp over USB? I mean I would assume you would need to build the chip capable from the start for this type of feature.. That being said is that something that future stamp’s could have?
Either way Love you stuff I plan on getting one to do some robotic + wifi projects soon!
Riley
http://www.synthetos.com
January 25, 2009 at 4:58 am |
Riley,
Actually the default power supply for the Linuxstamp is through the USB device port. The POE is nice, but it requires the external module.
thanks,
Paul