Connecting devices to PCs LPT port
LEDs with 470 ohm resistors.
Connecting relay:
Don't forget to connect protective diod to relay coil.
Isolated:
Connecting triac to LPT port for controlling power devices:
using LPT port to control electronic devices
date: 09.07.2002
Connecting devices to PCs LPT port
Connecting relay: Isolated:
Connecting triac to LPT port for controlling power devices: |