Searching \ for '[SX] Stabilising IR Receivers' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/ubicom/lib/io/index.htm?key=ir++ir
Search entire site for: 'Stabilising IR Receivers'.

Exact match. Not showing close matches.
PICList Thread
'[SX] Stabilising IR Receivers'
2008\07\12@210558 by williamn/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote:

Hi,
My SX is sleeping to save on the battery.
When an IR signal is received, it wakes up and then try to decode the IR signal.
To do this, the signal of the IR receiver is connected to one of the rb pins which will wake up the processor whenever pulled down.

Now, the problem is that the IR receiver is always receiving spurious signals which will toggle it's output every 10 - 30 seconds or so.
This causes the SX to wakeup for nothing, wasting the battery.

Any ideas on how to solve this problem?

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=279057
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)

2008\07\12@230627 by Beau Schwaben/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Beau Schwabe wrote:

william chan,
How much power is your IR detector consuming?  I would think that any amount of power consumed during "wakeup"-->"read"-->"sleep" might be negligible depending on the type of IR detector you are using, since it would need to be "ON" all the time.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=279057#m279066
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)

2008\07\13@011948 by williamn/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote:

Sharp has a part that consumes only 200uA active.
I think it is the lowest power IR receiver money can buy.

http://www.sharpsma.com/Page.aspx/americas/en/238b8a1b-e348-417a-a2c2-426e09db5620
Any solutions for me?

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=279057#m279073
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)

2008\07\13@060704 by mgreenn/a

flavicon
face
In SX Microcontrollers, SX/B Compiler and SX-Key Tool, mgreen wrote:

You can always build an integrator out of a micropower comparator and some passive components.  You can use an RC timer where the capacitor is constantly charged at one rate and discharged by the GP1UD at another rate.  If the GP1UD is on a certain percent of the time, the comparator will trigger and wake up the SX.

---------- End of Message ----------

You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=279057#m279083
Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com
The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)

More... (looser matching)
- Last day of these posts
- In 2008 , 2009 only
- Today
- New search...