Bluetooth Attachment

Expansion modules and attachments

Posts: 213
Joined: Mon Apr 01, 2013 7:58 pm
PostPosted: Thu May 07, 2015 4:11 pm
psirex wrote:How much and where can I get 1?

:D :D :D :D

Pm roberto.. You wont regret it
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Posts: 1833
Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL
PostPosted: Thu May 07, 2015 5:17 pm
I love it.
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Posts: 82
Joined: Tue Oct 08, 2013 8:22 pm
Location: Salt Lake City, UT
PostPosted: Thu May 28, 2015 8:05 am
Just installed my Bluetooth. Its so convenient. I am glad I read the first part of this post about replacing the file.
This is perfect for someone like me who is learning the program and wants to try multiple things.
Image
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Posts: 138
Joined: Thu May 23, 2013 2:52 pm
PostPosted: Mon Jun 08, 2015 11:21 pm
What kind of range are those of you with this module getting from it? I have an iMac sitting about 9 feet from the Bluetooth module, and while it can occasionally connect, and even succeeded in uploading code once, it fails to connect or complete the upload about 90% of the time. If I sit next to the bluetooth module with my laptop, I get better results, but it sure would be nice to use the computer in my home office to update the code for the aquarium in my home office. :-/

Is there any way to implement an external antenna for the bluetooth module, like some have done for the WiFi?
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Posts: 1833
Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL
PostPosted: Tue Jun 09, 2015 3:54 am
Mine is about 18' away.
Never had a problem.
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Posts: 1426
Joined: Fri Mar 29, 2013 3:51 pm
Location: Oklahoma City
PostPosted: Tue Jun 09, 2015 7:04 am
Mine is probably about 10' away, through two walls and the aquarium stand. Try moving the BT module away from the other electrical equipment and away from the WiFi adapter to reduce interference.
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Posts: 1833
Joined: Sun Apr 21, 2013 6:25 am
Location: Davie, FL
PostPosted: Tue Jun 09, 2015 7:06 am
Mine goes through a wall too.

Posts: 12188
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Tue Jun 09, 2015 7:56 am
Maybe it is the radio on your computer.
Try using an external dongle or even one of those with external antenna.
Roberto.
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Posts: 138
Joined: Thu May 23, 2013 2:52 pm
PostPosted: Tue Jun 09, 2015 5:36 pm
Am I cursed somehow? I can sit my laptop two inches from the bluetooth module, and when I attempt to upload code from Arduino over the bluetooth connection, the light on the bluetooth module turns blue, the reef angel clicks loudly as it reboots, the blue light goes out, and the upload fails with the notice
Code: Select all
avrdude: ser_open(): can't open device "/dev/tty.RN-IAP-D497-RN-iAP": Resource busy


It's only worked once, and I've had no luck since, despite removing the bluetooth device and re-pairing it, restarting Arduino, changing the serial port to something else and back, etc.

When it is connected to my Mac, I can check the RSSI. For the iMac, which is 9 feet away, it's around -60 dB. For the Macbook sitting two inches away, it's about -45 dB.
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Joined: Fri Jul 20, 2012 9:42 am
PostPosted: Wed Jun 10, 2015 7:48 am
Did you replace the file mentioned in the OP?
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