No bluetooth connecting / HC 05; Arudino Nano

[Nils_Burghardt]

Hello Blynkers!

I have the following problem:
My cell phone can be paired with the HC-05 Bluetooth module, but not connect, so I get the error message “cant connect. Connecting to Bluetooth device.”

The HC-05 module is connected to an Arduino Nano and it is supposed to be a remote control for an RC car. The connection with the Arudino itself works, it can play an example function (blink) on it.

The Auth tooken was added and the connections 8 and 9 were connected with RXD TXD.

[PeteKnight]

@Nils_Burghardt

My cell phone can be paired with the HC-05 Bluetooth module

Is this in the Bluetooth settings of the phone, or in the BLE widget in the Blynk app?

Pete.

[Nils_Burghardt]

Hey Pete,

Its the orginal Bluetooth widget in the blynk app.

[Alx-I]

Hello,

Some times ago I did a little tuto for NANO+BLE.
Perhaps you’ll find there the solution

NANO + HC-06 + HX711 (bluetooth scale)

There is few subjects with this NANO+HC-06. A lot of questions, but few complete solution. So after getting a lot of help here for years (thanks all!), I give back the job One thing to know before all, the NANO is very limited so NANO+HC-06 will only work for very simple project. So, as always, start basic, validate, and perhaps add gradually some stuffs. I explain all the steps here below (full information for anyone that should have never used BLYNK). Yes, it’s all french, google tr…