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Utility Plug

€2.50 - €12.00

The Utility Plug is a small board to interface any of the ports on a JeeNode to an RJ-12 jack.

The kit includes the following extra components, to handle a variety of simple interfacing and signal-conditioning scenarios:
  • 2x 100 Ω, 2x 1 kΩ, and 2x 10 kΩ resistors (1/6 watt)
  • 2x 1N4004 diodes, as rectifier or kickback protection
  • 2x 2N4401 transistors, can switch up to 500 mA @ 40V
  • 2x 5mm LEDs, one red and one green
  • 1-meter 6-core cable, with a RJ-12 connector on one end
The RJ-12 jack on this plug can also be used with RJ-11 cables (commercial or home-made) with only 4 of the 6 wires hooked up. In this case PWR and IRQ will not be connected, only AIO, DIO, +3V, and GND.

The Kit version comes with all the parts needed, including the RJ-12 jack, and 1 meter of flat white cable with one RJ-12 connector attached. Note that no 6-pin headers are included.

The PCB only variant contains just the board for the Utility Plug. No parts, no headers.

The Pack of 4 contains four plug boards plus four RJ-12 jacks. Bring your own components, headers, connectors, and cables.

As connectors you can use a Plug Headers set with 10 male and 10 female 6-pin headers, which makes it easy to connect multiple plugs and JeeNodes in a “standard” way. Or you can solder the board directly in place for more permanent use.

The documentation and full design details are freely available.