Hello,
I recently purchased the Bluefruit LE UART Friend and I am trying to get it to connect with the Bluefruit Connect app (or any other app for that matter) to no avail. I am able to send and receive AT commands from my Arduino to the board using Software Serial, but when I enter DATA mode on the board, nothing shows up on my phone or is broadcasted. I have tried the things suggested in the guide for the board: resetting the app, phone, board itself, and factory resetting. Is there a key AT command I need to give the UART Friend in order to have it broadcast itself to the network? Or is something else wrong?
Bluefruit LE UART Friend Not Connecting
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Please be positive and constructive with your questions and comments.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
What code are you running on the Arduino when trying to connect to the Bluefruit Connect app? Maybe start with the BLEUart example?
https://learn.adafruit.com/introducing- ... nd/bleuart
https://learn.adafruit.com/introducing- ... nd/bleuart
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
I uploaded the sketch you suggested and it ran without any errors, but it still didn't show up in the app. If it helps, here is the output from the info command:
The LED is blinking twice meaning it is in DATA mode, but I am still unable to connect to it.
Code: Select all
BLEFRIEND32
nRF51822 0x00D6
B74C74E78EA2D34A
0.6.2
0.6.2
Apr 30 2015
S110 8.0.0, 0.2
- rooppoorali
- Posts: 98
- Joined: Sat Jul 16, 2022 12:04 pm
Re: Bluefruit LE UART Friend Not Connecting
Have you tried this troubleshooting guideline? https://learn.adafruit.com/bluefruit-le ... leshooting
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
Yep, still no luck. Is there a specific AT command that allows the board to be seen by other devices? Or is it supposed to happen automatically when the board is switched to DATA mode?
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
Is the switch on the Bluefruit LE module in CMD position? Is anything connected to the Mode pin (there should not be)?
This command will force the start of advertising packets, but it normally should be happening on its own.
https://learn.adafruit.com/introducing- ... dv-2176697
What BLE devices are you trying to connect to the module with (eg. iPad iOS 15.6.1)?
This command will force the start of advertising packets, but it normally should be happening on its own.
Code: Select all
AT+GAPSTARTADV
What BLE devices are you trying to connect to the module with (eg. iPad iOS 15.6.1)?
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
The switch is in the CMD position, and nothing is connected to the mode pin. I got this when I try AT+GAPSTARTADV:
I tried on both iOS 16 Beta 5 and iPadOS 16 Beta 3 with no luck.
Code: Select all
AT+GAPSTARTADV
ERROR
AT+GAPSTARTADV=?
OK
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
The above is expected if the advertise was already running.AT+GAPSTARTADV
ERROR
Maybe something other than beta for iOS devices? Do you have other BLE devices you can try to check with?
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
I tried the same with an iPad running iPad OS 15.6.1 with no luck.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
Can you try doing this step-by-step data mode example without the microcontroller just the Bluefruit LE UART Friend?
https://learn.adafruit.com/introducing- ... /data-mode
https://learn.adafruit.com/introducing- ... /data-mode
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
I followed the example; the board is blinking twice with a three second pause, just like the examples says, but it still isn't recognized by my device.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
The Bluefruit LE Connect App should be seeing the module. Let’s try two more things:
1) Do the FCR force reset on the UART module so we know you are in a cleared state.
1) Do the FCR force reset on the UART module so we know you are in a cleared state.
2) Post a photo of the wiring with your setup.FCR: This is the factory reset pin. When all else fails and you did something to really weird out your module, tie this pad to ground while powering up the module and it will factory reset. You should try the DFU reset method first tho (see that tutorial page)
- thenags
- Posts: 13
- Joined: Tue Apr 24, 2018 9:07 pm
Re: Bluefruit LE UART Friend Not Connecting
So I had another UART friend lying around that had a newer version,0.7.7, and that worked perfectly. Is it possible that the version has anything to do with this? If not, I only need one working for now and the 0.7.7 seems to work without any issues.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Bluefruit LE UART Friend Not Connecting
Yes, totally possible that the UART friend firmware needs to be updated. I had read your version of S110 8.0.0 as being current, but I take it that the 0.6.2 is the version you are running on the unit not connecting to your iOS and other devices.
There is a matrix showing compatible versions to UART friend versions. The latest firmware is 0.8.1.
https://github.com/adafruit/Adafruit_Bl ... E_Firmware
There are several upgrade utilities to choose from:
https://learn.adafruit.com/introducing- ... -resources
There is a matrix showing compatible versions to UART friend versions. The latest firmware is 0.8.1.
https://github.com/adafruit/Adafruit_Bl ... E_Firmware
There are several upgrade utilities to choose from:
https://learn.adafruit.com/introducing- ... -resources
Please be positive and constructive with your questions and comments.