Search found 5 matches

by bena
Wed Oct 08, 2008 7:41 pm
Forum: General Discussion
Topic: Need help designing a simple project.
Replies: 10
Views: 2266

Thanks Bigglez,

I just found out that the output is actually just a High Low TTL, so I can just use a transistor to interface the way I need.
by bena
Wed Oct 08, 2008 7:47 am
Forum: General Discussion
Topic: Need help designing a simple project.
Replies: 10
Views: 2266

Thanks so much for the design Steve. I have one other hopefully simple circuit to design. I need a circuit that takes TTL output and turns an LED on and off. My understanding is that the TTL will send 1 pulse for ON and 2 pulses for off. I am trying to get the complete specs on the TTL output. Thank...
by bena
Mon Oct 06, 2008 8:08 pm
Forum: General Discussion
Topic: Need help designing a simple project.
Replies: 10
Views: 2266

everything is running off 2 AA batteries.

Basically I need this circuit to drive an IR remote, pressing the remotes buttons based on the condition of the LED.

This is my project.
by bena
Mon Oct 06, 2008 7:35 pm
Forum: General Discussion
Topic: Need help designing a simple project.
Replies: 10
Views: 2266

1. Can not touch the LED 2. Red LED 3. The circuit with the sensor will run off 2 AA batteries 4. Yes 5. I would like it to be a change of state that causes the slave circuit to close the circuit of the main board. Yes to ignore the steady light, or else it will run Less than a sec is fine. Thanks
by bena
Mon Oct 06, 2008 4:37 pm
Forum: General Discussion
Topic: Need help designing a simple project.
Replies: 10
Views: 2266

Need help designing a simple project.

Hi all, I need a circuit that does the following. I will have a light sensor attached to an LED. When the LED turns on, I want this circuit to momentarily close a circuit ( act as a switch ) for another circuit board. Then when the LED turns off, I want to either close the same circuit as before or ...