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wiring EFX tech serial port — Parallax Forums

wiring EFX tech serial port

Karl_TKarl_T Posts: 7
edited 2010-01-10 23:28 in BASIC Stamp
I just got this: http://www.efx-tek.com/topics/dc-16.html

Its a 16 output expander board. The Docs just say to plug in a red whte and black three wire cable but I'm not seeing where to hook these wires up to my basic stamp module. I want to be positive i got the wiring correct before attempting serial communication.

Anyone able to help?

Karl
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Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2010-01-10 23:08
    The white wire gets connected to an I/O pin. The black wire gets connected to ground (Vss). The red wire gets connected to +5V (Vdd).

    I'd suggest putting a 220 Ohm resistor between the white wire and the I/O pin to protect the I/O pin from programming errors.
  • Karl_TKarl_T Posts: 7
    edited 2010-01-10 23:28
    Thank you Mike

    Karl
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