USB BLE-Link: No AT Response - Arduino Robot IOT Community Forum

USB BLE-Link: No AT Response#32958

By chris.ricketts - Wed Oct 09, 2019 2:16 pm

- Wed Oct 09, 2019 2:16 pm #32958

Hi,

I have a Bluno USB BLE-Link dongle which I have updated to the 1.97 firmware (SBL_Blelinkv1.97.bin).

It does not respond with "Enter AT Mode" when I send "+++".

It also didn't respond before I updated the firmware.

I have tried it with 3 different dongles.

Any ideas as to how to fix this?

Thanks in advance,
crick

Re: USB BLE-Link: No AT Response#32965

By nana.wang - Thu Oct 10, 2019 7:33 am

- Thu Oct 10, 2019 7:33 am #32965

Hi Crick,
Thanks for your support.
Could you please offer the SKU No. and have you read through the wiki page related?
If not, please read it first.

Re: USB BLE-Link: No AT Response#32970

By chris.ricketts - Thu Oct 10, 2019 9:55 am

- Thu Oct 10, 2019 9:55 am #32970

SKU: TEL0073

Yes, I have read through both of these wiki pages:
https://wiki.dfrobot.com/BLE-Link__SKU_TEL0073
https://wiki.dfrobot.com/Bluno_SKU_DFR0267

Re: USB BLE-Link: No AT Response#32973

By chris.ricketts - Thu Oct 10, 2019 12:10 pm

- Thu Oct 10, 2019 12:10 pm #32973

Also, when using the BlunoBasicDemo Android app to test the BLE-Link TEL0073 dongles - data sent to the dongle does not appear in the Arduino Serial monitor but data sent from the serial monitor does appear in the "Received Data" section of the app.

Does this indicate that the BLE-Link TEL0073 has an issue with writing to the serial port it creates on the PC?

Re: USB BLE-Link: No AT Response#32979

By nana.wang - Fri Oct 11, 2019 3:02 am

- Fri Oct 11, 2019 3:02 am #32979

Hi Chirs,
Got it. And we have a post in Chinese witch may help you solve it. But I need time to translate it.
Once it is translated, I will share it with you.

Re: USB BLE-Link: No AT Response#33007

By nana.wang - Mon Oct 14, 2019 3:28 am

- Mon Oct 14, 2019 3:28 am #33007

Hi we found that if the IO espansion board is in RUN mode, which means the RX/TX are occupied and the data cannot be sent.
So please try change the mode, and chck the result.

Re: USB BLE-Link: No AT Response#33011

By chris.ricketts - Mon Oct 14, 2019 9:54 am

- Mon Oct 14, 2019 9:54 am #33011

Hi,

I made a mistake with the SKU. It is: TEL0087 - https://www.dfrobot.com/product-1220.html
I am sorry for wasting your time this far.

Just to clarify:
Sending "+++" does respond with "Enter AT Mode".
I can receive data sent from the TEL0087 to the BlunoBasicDemo Android app.
I do not receive data sent from the Android app to the TEL0087 - i.e. No data received on the serial (COM) port.
It appears that TX is working but RX is not working.

Re: USB BLE-Link: No AT Response#33066

By nana.wang - Mon Oct 21, 2019 5:31 am

- Mon Oct 21, 2019 5:31 am #33066

Please try uploaing Blink to the UNO.

Re: USB BLE-Link: No AT Response#33070

By chris.ricketts - Mon Oct 21, 2019 9:56 am

- Mon Oct 21, 2019 9:56 am #33070

Hi, I am not using an UNO.

I am just using TEL0087 - https://www.dfrobot.com/product-1220.html

It is not working with your demo android app or entering AT mode.

Re: USB BLE-Link: No AT Response#33083

By nana.wang - Tue Oct 22, 2019 9:35 am

- Tue Oct 22, 2019 9:35 am #33083

Okay, please uploaing Blink to the UNO to test it first, if it goes ok the sensor is alright.

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