Don't ad-block us - support your favorite websites. We have safe, unobstrusive, robotics related ads that you actually want to see - see here for more.
0 Members and 1 Guest are viewing this topic.
We're currently trying to find CAT5/6 available in Ottawa
Does anyone know how Cat 5/6 cable fairs if it is just left in the water, like if we just attached it to a tether, but not actually inside anything. Would there be too much noise from the water and kill the signal?
We're still looking for a length of 300ft ethernet locally, rather than buy one from the States or China which costs like $70+ after shipping.
yup. I'd also have a resistor in line with the LEDS like the diagram, just to protect the LEDs, since 5v is higher then there 4.5V need. A 1W or greater 1 ohm resistor should do the trick.
The resistors are required for limiting current, doesn't matter the voltage involved.
I'd use a MOSFET here instead of a transistor simply because they are more efficient, can operate at much higher currents, can switch on/off much faster, and don't require a resistor at the gait.
Something like: http://cgi.ebay.ca/USB-RJ45-Ethernet-Card-10-100-LAN-Network-Adapter-/390245465376?pt=LH_DefaultDomain_0&hash=item5adc713d20I'm not sure it would work power wise either, presumably I'd have to get some POE going. I don' think the 10/100 switch does POE, but I'll have to confirm later.