Comments on: Arduino controlling with Bluetooth https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/ All about electronics and circuit design Tue, 28 Apr 2026 21:36:21 +0000 hourly 1 http://wordpress.org/?v=3.9.14 By: Tomi Engdahl https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1511092 Sun, 04 Sep 2016 19:18:37 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1511092 Convert Any USB Keyboard to Bluetooth
http://hackaday.com/2016/09/04/convert-any-usb-keyboard-to-bluetooth/

[DastardlyLabs] saw a video about converting a PS/2 keyboard to Bluetooth and realized he didn’t have any PS/2 keyboards anymore. So he pulled the same trick with a USB keyboard. Along the way, he made three videos explaining how it all works.

The project uses a stock DuinoFun USB mini host shield with a modification to allow it to work on 5V. An Arduino mini pro provides the brains.

A standard Bluetooth module has to have HID firmware installed.
HC-05 Bluetooth module

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1503650 Fri, 05 Aug 2016 05:58:22 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1503650 I can’t answer all your questions.
I wrote my article two years ago and I don’t remember all the details because this design is not in everyday use…

]]> By: PJA https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1502772 Sun, 31 Jul 2016 13:57:36 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1502772 You write: “and wondered some time to make it to connect, but finally found out that pressing the button for app settings gave me the option to select the Bluetooth connection I wish to use.”

I have the same difficulty – pairing successful, ‘connecting’ unsuccessful (the LED goes to slow blinking, so it’s Paired, but it’s not Connected till it goes to the double-blink state).

Which button for “app settings”? I’ve been back and forth with the Android BT settings, but there’s no option for ‘connecting’. Is there a ‘button’ in ArduDroid that I’m overlooking?

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1489123 Mon, 02 May 2016 14:12:41 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1489123 With your description I can’t say what would be specifically wrong.
Check out that the wiring is correct and that bluetooth registration between the devices is working etc…

]]> By: amr khaled https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1489051 Sun, 01 May 2016 17:14:55 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1489051 so i am doing a similar project but instead of led i want to use a dc motor, the circuit is all wired up but the bluetooth wouldn’t receive any data, its module is Hc-05 and i connected the resistances as specified but still no change, could you please ust tell me what may be the problem ?

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1466809 Wed, 13 Jan 2016 22:43:06 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1466809 I e-mailed the sketch.

]]> By: anthony https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1466638 Wed, 13 Jan 2016 08:01:29 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1466638 can I have a full copy of the modified sketch you used

]]> By: Marcio https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1387004 Fri, 08 May 2015 13:49:16 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1387004 Ok, so wow, im so used to working with solar, so I guess a 1 volt here makes all the difference. So I would need my breadboard to share the 5v from the arduino to the servo and the BT module :-)

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1386845 Fri, 08 May 2015 06:11:52 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1386845 The 3.3V pin on the normal Arduino is just 3.3V power output to module.
The Bluetooth module want power supply that is 3.6-6V, so 3.3V would be too low here.
So connecting anything to 3.3V on normal Arduino directly does not help here.

If you select an Arduino variation that uses 3.3V voltage for the Atmel CPU, you can connect the
TX and RX lines directly to each other without any resistors.

]]> By: Marcio https://www.epanorama.net/blog/2014/06/23/arduino-controlling-with-bluetooth/comment-page-1/#comment-1386762 Fri, 08 May 2015 00:05:13 +0000 http://www.epanorama.net/newepa/?p=26425#comment-1386762 What if we connect the hc-05 to the 3.3V pin on the arduino instead of the 5v?

]]>