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Okey, everything works now.
I put a 1k resistor to ground at each input pin of the Inverter. It is working find now (not sure if 1k is correct though). There are no LEDs. As per schematic in the first post, I am using TIP120 transistors to run 12v. 0.4 ma motors.
Currently there is no...
I want to invert a single coming from each pin of my arduino board. The goal is to keep motor Q2 running until a signal from PIN 1 is pulled up. In that case Motor Q2 must turn off and Motor Q2 turn on.
Here is my schematic made by a friend:
I am using SN74LS04 (Hex Inverter) that gives me 6...
thank you guys for the reply. There are lots to learn.
I tell you about our project.
I am trying to get 120 digital outs. The pins are connected to 120 DC motors (fans), a series of fans pushing air in and out of 120 inflatable pillows. The fan motors are not reversible so the work around is...
Hello everyone,
I am new to electronics. I am using a variation of an arduino board.
I have an LED that is refreshed constantly (I can control the rate in my program,lets say 1000 times a second). Instead of having the LED on or off, it is turned on and off 1000 times a second. of course it...
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