Hello,
I was implementing rj-11 breakout boards (http://www.gravitech.us/rjbrbo1.html) with arduino for the weather meters found here (http://www.sparkfun.com/products/8942). I was wondering if some one can guide me as to how to I connect the rj-11 breakout with arduino. I could not find any data sheet explaining me how to wire the rj-11 with arduino .
Thank you.
The datasheet is very confusing ! I did find one post on the product page where someone using the Wx station had blogged his wiring of it to his Arduino. While he doesn’t show the connections to the Arduino itself, he did seem to decode what wires had what signals on the Wx station. That blog is here …
http://supertechman.blogspot.com/search … %20station
and I’ve copied his wiring below. When I get a chance I’ll see if I can’t post a cleaned up version with pin numbers but can you confirm that there are 2 6pin plugs from the Wx station and tell us if they are labelled in any fashion ? I see one cable&plug from the rain gauge/bucket and 1 from the arm with both the wind vane and anemometer.
Sorry Mee_n_Mac, I got extremely busy with my studies and could not reply you. Thanks for all that info. Yes there is one cable/plug from rain gauge, and one cable from wind vane and anemometer each. The rain gauge and anemometer cables have 2 wires coming through them (red & green) but the wind vane has 4 wires coming through its cable (black, red, green, and yellow) and only the wind vane sensor has a 4-wire rj-11 connector underneath it. Besides that there is no label on any of the sensors. Hope that helps .
I was looking at the link you provided. It seems like I need to open the rj-11 connectors to access the wires directly. Is that right?
Thank you.
The datasheet shows only 4 contact connectors and not the 6 contact ones it actually has. Thus I don’t trust the pin numbers given on the datasheet but the color coding in above wiring diagram by ‘supertechman’ seems right. If you want to cut off the connectors to get at the wires … I suppose that’s one way. Jacks to plug them into are easy to come by but it all depends on if you want to make something like a board to interface to your Arduino. Given it’s only 6 wires it may not be worth that effort. As for how to wire it to the Arduino … I see no reason not to use the above pin assignments. Pins 2 and 3 as digital inputs with internal pullups and pin 5 as an analog input with a 10k bias resistor to Vcc (thus making a voltage divider for the wind vane).