RFID Toys Homepage
Holy crap, check out the Dangerous Things store!
Forum Home Forum Home > Projects and such > RedBee Projects
  New Posts New Posts RSS Feed - RedBee -automotive-
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

RedBee -automotive-
 Post Reply Post Reply Page  12>
Author
Message Reverse Sort Order
  Topic Search Topic Search  Topic Options Topic Options
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Topic: RedBee -automotive-
    Posted: 27 September 2010 at 12:07pm
This was the case. I added a 1k resistor to ground and the problem was solved. Project is nearing completion!
Back to Top
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2010 at 12:45pm
Yes that is the design I am using aside from a 5v regulator for my source (running the reader off of 12v)

Edited by AdmiralVorian - 17 September 2010 at 12:46pm
Back to Top
amal View Drop Down
Admin Group
Admin Group
Avatar

Joined: 22 November 2005
Location: United States
Status: Offline
Points: 2061 		Post Options Post Options   Thanks (0) Thanks(0)   Quote amal Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2010 at 12:37pm
I see the manual PDF you're referring to. Are you using the transistor and protection diode as shown in the diagram?
Amal ;)
www.amal.net
Back to Top
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2010 at 12:36pm
N/O 5v reed relay from radio shack


 my engineer friend says he thinks I may be getting some "rogue voltage" on the I/O pin from the reader startup. I'm going to try giving that a place to go.

Also I have done extensive range testing with the RedBee on a 12v power supply as opposed to a 5v and let me tell you - it's awesome!


Edited by AdmiralVorian - 17 September 2010 at 12:37pm
Back to Top
amal View Drop Down
Admin Group
Admin Group
Avatar

Joined: 22 November 2005
Location: United States
Status: Offline
Points: 2061 		Post Options Post Options   Thanks (0) Thanks(0)   Quote amal Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2010 at 9:07pm
what redbee manual are you referring to? also what kind of relay are you using?
Amal ;)
www.amal.net
Back to Top
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2010 at 8:59pm
So I have this wired up per the third diagram on page three of the redbee manual. The only difference is that I am using a 12v source (for range) and I have a 5v voltage regulator powering the rest. 

When I initially power up the system, the relay is exited and the LED is on. I swipe a tag (the reader is set to go high for 5 seconds on OUT1) and wait five seconds. When the voltage drops, the LED and the relay both turn off. Subsequent tag reads produce the expected result.




Edited by AdmiralVorian - 17 September 2010 at 12:50pm
Back to Top
amal View Drop Down
Admin Group
Admin Group
Avatar

Joined: 22 November 2005
Location: United States
Status: Offline
Points: 2061 		Post Options Post Options   Thanks (0) Thanks(0)   Quote amal Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2010 at 12:56pm
I think you'd be better off to just power the LED from the switched leads of the relay, not the coil leads (the leads powered by the redbee).If the switched side of the relay is switching 12v, use a 1k ohm resistor in series with the LED and you'll be fine.
Amal ;)
www.amal.net
Back to Top
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Posted: 02 September 2010 at 12:11pm
so I'm going to use 12v fused power on the barrel connector.

can i carry the load for a reed relay and an LED on the reader or should I just have 5v power supply?
Back to Top
amal View Drop Down
Admin Group
Admin Group
Avatar

Joined: 22 November 2005
Location: United States
Status: Offline
Points: 2061 		Post Options Post Options   Thanks (0) Thanks(0)   Quote amal Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2010 at 5:48pm
You're right, the redbee will not trip that. It has a max 20ma output so you will have to use a transistor or a 5v reed relay from Radio Shack, and then use that to power the automotive relays. Look at some of the earlier, less sophisticated designs put up in the first couple pages of that thread and you'll see what I'm talking about. The reed relay and protection diode should be all you need, or you could use a switching transistor.
Amal ;)
www.amal.net
Back to Top
AdmiralVorian View Drop Down
Newbie
Newbie


Joined: 22 June 2010
Status: Offline
Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AdmiralVorian Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2010 at 4:55pm
Yeah I'm worried that the redbee won't trip a 30A automotive relay. My plan now is to use a solid state relay to switch an automotive relay. do you know which ss relay I may need? Is there anything I should add to keep the redbee safe?

Edited by AdmiralVorian - 25 August 2010 at 5:03pm
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 1.703 seconds.