How to Set/Reset Latch?

Electroenthusiast

Active Member

• Feb 18, 2010

• #1

| Continuation of https://www.electro-tech-online.com/threads/counter-door.103518/ |
Will be using 3 IR LED's and Recievers.

How to Set/ Reset latch using IR Receiver(IR Sensor)?
And also will it be able to make Not gate run (as an input) and count a Counter using the IR Sensor?


Which IR sensor can i use for it/ should i use anything else(2-3Ft)?

Will it work for all Vcc Voltages?

 

Vizier87

Active Member

• Feb 18, 2010

• #2

I've read the link you gave, they're right.. microcontrollers are better. See this page to get started: winpicprog.co.uk

 

Electroenthusiast

Active Member

• Feb 18, 2010

• #3

i know that....but still may i know how to set/reset the latch; and run a counter using the IR Receiver...
At least i want to know the working of IR Receiver.

 

Last edited: Feb 18, 2010

Vizier87

Active Member

• Feb 19, 2010

• #4

That is very easy. Get an IR LED, an IR receiver. Give the IR LED a 3V supply from old batteries that you have, point it to your IR receiver LED. It usually reads from 0 to 1.1V. To interface them to PICs, see this circuit:
**broken link removed**

Use an LM358 for the comparator.

how to set/reset the latch; and run a counter using the IR Receiver...

Click to expand...

The PIC handles all that kinda stuff, if I understood your question.

 

Electroenthusiast

Active Member

• Feb 22, 2010

• #5

**broken link removed**

May i know the Connections of Receiver,
i want it to be as simple as possible. Just tell me the three pins of this Reciever.

 

Vizier87

Active Member

• Feb 22, 2010

• #6

whoa that's a big pic... okay see this link:
TSOP1738 datasheet
This'll be your initiation into datasheets, you'll need them all the time for every device. A very good practice also.

But since you asked, I'll give you the pinouts:
**broken link removed**