Make a Connection - All Comments

RE: Using LoRa for remote communication

dougw — Mon, 05 Oct 2026 14:07:18 GMT

It would be awesome to see if you could get a LoRa signal from here to Mt. Etna.

RE: Today's Adventure

dougw — Mon, 05 Oct 2026 13:57:56 GMT

Nice application - lots of potential.

RE: Send some water to your plants from anywhere in the world

Qbit — Wed, 30 Sep 2026 10:30:39 GMT

Cool automation system [mention:782d719f1d8c4ec989f5abf8fb4e62e6:e9ed411860ed4f2ba0265705b8793d05] !

RE: Car Racing Gaming Console

Qbit — Wed, 30 Sep 2026 10:16:56 GMT

Cool project! Nice use of the UNO Q capabilities!

RE: Car Racing Gaming Console

DAB — Tue, 29 Sep 2026 20:38:28 GMT

Nice build.

You might have to work on the sensitivities, but the set up looks functional.

RE: Using LoRa for remote communication

DAB — Tue, 29 Sep 2026 20:35:00 GMT

Interesting project.

I look forward to seeing how it works when everything is in place.

RE: Car Racing Gaming Console

Shishir — Tue, 29 Sep 2026 06:51:41 GMT

Amazing project.

RE: Handoff: shake hands, share contacts

shabaz — Mon, 28 Sep 2026 13:50:56 GMT

Interesting project, but that was really too much to read, it would have benefited from an introduction and a conclusion, keep it simple : )

As I understand it (this ought to have been in the introduction):

The project implements a microcontroller and op-amp on a wrist-strap, and a conductive pad to the wrist, such that electrical tone signals are driven out of the pad, and if that user shakes hands with someone else wearing such a strap, then the receiving end op-amp will amplify up the signal and pass that to the microcontroller to decode. The system is therefore capable of transferring user details (such as name, phone number and so on) through body contact, and everything is configurable/retrievable with a mobile app which connects perhaps by USB (I couldn't see the detail due to the wordiness, so I might be wrong).

RE: Using LoRa for remote communication

shabaz — Mon, 28 Sep 2026 13:31:28 GMT

Hi,

Nice project!! Just noticed there's a slight adjustment possible in the code.

Currently it is:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:9576f068-7a58-4789-9138-2f2dc724276c:type=c_cpp&text=LoRa.setTxPower%2820%29%3B%0ALoRa.setSpreadingFactor%2812%29%3B%0A%0ASerial.println%28%22Parametri%20LoRa%20impostati%22%29%3B%0A%0Aif%20%28%21LoRa.begin%28LORA_FREQ%29%29%20%7B]

On that last line pasted above, the begin() function defaults to a transmit power of 17 dBm (currently line 149 in the library code) whereas you'd tried setting to 20 dBm a few lines earlier. If you can, it would be good to move that code so the begin() is called before the setTxPower(20), and do the same thing with the setSpreadingFactor(12) too. That should hopefully improve things a bit. Also, if possible, mounting the module closer to the antenna could be good (reduces the need to have the long coax).

RE: Car Racing Gaming Console

obones — Mon, 28 Sep 2026 13:31:08 GMT

That's so cool, and I even learnt about a Meccano competitor!

RE: Car Racing Gaming Console

misaz — Mon, 28 Sep 2026 13:22:31 GMT

I forget to mention, but demo runs on 2GB model of Uno Q. This particular game do not consume much memory. It works on both 2GB and 4GB models.

RE: Car Racing Gaming Console

shabaz — Mon, 28 Sep 2026 13:07:20 GMT

That's really neat! Hm, seems like a killer app for the Arduino Q, to have interactive gaming like this.

RE: Handoff: shake hands, share contacts

Shishir — Sun, 27 Sep 2026 18:46:17 GMT

Quite a detailed project. Great!

RE: EyeLink — A Wheelchair You Drive by Blinking

VK2EJH — Sun, 27 Sep 2026 14:22:25 GMT

Does the IR LED give you a headache ? My IR camera LEDs do. It shows great control - well done.

RE: Full Duplex Morse Code Decoder

VK2EJH — Sun, 27 Sep 2026 13:58:43 GMT

Last minute Video - sorry about the quality.[View:/cfs-file/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-2a9d97d7-a111-476e-97b7-7ce80dd00715/MorseTest.mp4:640:360] I included it since there does not seem to be anyone trying it yet and I wanted to prove that it works - I left in my error I paused too much between dashes so dash dash is an M but I sent dash pause dash which is T and T. Timing is everything and I think this code works pretty well.