BlueFruit EZ-Link Bluetooth Not Pairing

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kcocco
 
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BlueFruit EZ-Link Bluetooth Not Pairing

Post by kcocco »

Have not been able to pair BlueFruit EZ-Link bluetooth to MAC OS 10.8.5 or Android Phone?

What works:
- Powers up, shows blinking (2 sec.) connection light. Have wired to this guide: https://learn.adafruit.com/introducing- ... k/overview and also just Pwr & GND
- When I wire Arduino TX to Bluefruit RX I do see RX Led flash
- Can see the bluetooth device on both MAC and Android... but can't pair.
- Have soldered pin headers, not just pushing wires in holes....

What doesn't work:
- Can't pair: MAC -Tried passcode 1234 and no passcode. Will not pair.
Android - 'Couldn't pair ... incorrect PIN or passkey.
- Pair Button when pressed blinks connection RED led just once then continues on it's 2 sec blink. If I hold for 5sec+ it never enters the 'fast blink' mode?

I have seen some issues of broken HW? Not sure what to test next?

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

Post a photo of your hardware and connections.. we'll see if those give us any clues.

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kcocco
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by kcocco »

Bluefruit ez-link pins
photo 3.JPG
photo 3.JPG (416.37 KiB) Viewed 1089 times
Overview: Wire according to: https://learn.adafruit.com/introducing- ... k/overview
photo 2.JPG
photo 2.JPG (504.19 KiB) Viewed 1089 times
GND - 5V - Reset
photo 4.JPG
photo 4.JPG (479 KiB) Viewed 1089 times
Note I also tried just 5V & GND.... Still no luck?

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kcocco
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by kcocco »

Here is the pairing flow that does not work:

My MAC can see the BlueFruit EZ-Link
Screen Shot 2014-10-26 at 6.07.12 PM.png
Screen Shot 2014-10-26 at 6.07.12 PM.png (77.33 KiB) Viewed 1076 times
If I select the BlueFruit for pair it fails "the paring attempt was unsuccessful. The device is refusing the pairing attempt."
Screen Shot 2014-10-26 at 6.05.35 PM.png
Screen Shot 2014-10-26 at 6.05.35 PM.png (84.27 KiB) Viewed 1076 times
The above screen is displayed. I attempt to pair with passkey 1234 and get same paring attempt failed as above.
If I select 'Do not use a passcode with this device' it will accept this without error but never connect/pair? See below:
Screen Shot 2014-10-26 at 6.06.16 PM.png
Screen Shot 2014-10-26 at 6.06.16 PM.png (117.47 KiB) Viewed 1076 times

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kcocco
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by kcocco »

note screen shots out of order

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

OS X can be flaky about connecting to devices whose profiles have been stored.

Try deleting the profile for the EZ-Link that exists now and letting the Mac discover it again.

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kevincocco
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by kevincocco »

I have deleted and readded several times with same results. Have tried on 2 macs, windows, android. Can see bluefruit but never pairs?

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

That sounds like a problem somewhere in the firmware.

Send a note to [email protected] with a link to this thread and the folks there will get you a new EZ-Link.

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kcocco
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by kcocco »

FYI community... my replacement works.

Regarding the pairing button and red light. The button will advertise the bluetooth for pairing or if paired will unpair then advertise. This pairing process seems to happen within a second or two and do not see any need to hold for 5 sec as I have read. The red light will flash slow (1 flash per sec.) when unpaired. When paired the red light will flash fast (~ 4x sec.).

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

That's how it should be.

Glad to hear the new one work. Happy hacking!

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rpsmithii
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by rpsmithii »

Hello - I am having the exact same problem and symptoms - I sent an email to support but they asked me to post here.

Running latest version of Mac OS - tried a 2014 Air and late 2013 iMac.

Connects and then disconnects - does not appear to create the UART connection - never shows up in the IDE on v1.06, v1.5.7 java 7 or v1.5.8 java 7

Thanks.

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

Does the EZ-Link show up as being available for pairing?

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rpsmithii
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by rpsmithii »

adafruit_support_mike wrote:Does the EZ-Link show up as being available for pairing?
It does - pairs then disco's after about a minute or two...

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adafruit_support_mike
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by adafruit_support_mike »

That's a case we don't see much..

Can you transmit data during the period where the devices are paired?

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rpsmithii
 
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Re: BlueFruit EZ-Link Bluetooth Not Pairing

Post by rpsmithii »

No not at all

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