NFC function

Sato

Hi kl3m3n,

Nowadays most smartphones have NFC.
I leave here the new challenge, is there a way for Gui-O to use this feature?

Regards

kl3m3n

@sato GUI-O supports NFC, but this feature is currently disabled. I will enable it, but first I just need to think how to expose it to the user. Possibly through hardware components, similarly as RTC (real-time clock).

Best regards,
kl3m3n

Sato

Hi @kl3m3n,

As most smartphones have the NFC Reader integrated, in my opinion it is to be able to read a Tag's ID and the Gui-O make that information available for the user to use in any way they need. In this case I don't think any hardware other than the Tag will be necessary.

Best regards

kl3m3n

@sato Thank you, I will add it to the list (with low priority).

Best regards,
kl3m3n

Sato

Hi @kl3m3n,

Ok, i know you have priorities. In my opinion it's an excellent feature. It is a way to know if the connection was remote or local on the equipament, this makes a lot of difference during information management.

Best regards

kl3m3n

@sato NFC feature is implemented in v1.0.15. Please check the new developer manual.

Best regards,
kl3m3n

Sato

Hi @kl3m3n,

Great. THANK YOU.

Soon i will buy a Tag to make tests and give feedback.

Best regards

Sato

Hi @kl3m3n,

Today received the Tags

mqttClient.publish(&In[0], "|NFC UID:nfc1 HID:nfc SEN:1\r\n");
Gui-O respond with @nfc1 -2

Make NFC on, it receive nothing

Tested with my both Samsung Phones

Attached the picture of the Tags

(https://i.imgur.com/67bKB15.jpg)

Regards

Sato

Hi @kl3m3n,

Forgett to add the data of the Tags read with a NFC read App
Hope it can help

Best regards

D_NFC TagInfo.jpg C_NFC TagInfo.jpg B_NFC TagInfo.jpg A_NFC TagInfo.jpg

kl3m3n

@sato Did you write any record to the tag? You need to write at least one plain text record to the tag (GUI-O does not support writing tags). There are may apps able to write the NFC data. Did you consult the manual?

Best regards,
kl3m3n

Sato

Hi kl3m3n,

Yes I read the Manual, but I must be doing maybe something wrong, because it doesn't work.

In the final part of making the graphical environment I put:
mqttClient.publish(&In[0], "|NFC UID:nfc1 HID:nfc SEN:1\r\n");

mqttClient.publish(&In[0], "|TON UID:ton1 HID:ton EDUR:3000\r\n");

Inside the void loop I have a Timer that periodically runs:

mqttClient.publish(&In[0], "@nfc1 SEN:1\r\n"); // wouldn't even need

mqttClient.publish(&In[0], "@ton1 1\r\n");
Serial.println("TON");

Always plays a short sound

I recorded the text "Hello Gui-O" in a Tag, with an App Tool for NFC. I can read that text even with the internal functionality of the phone, but on the serial port nothing appears.

void parseGuioMsg(const String &msg) {
Serial.println(msg); // @init usr:
variable msg is always empty

To make sure if there is something wrong with my code, I tried it with your example lamp code, but the effect is the same

Here I switch Off the NFC function on the Phone, on tap's on the lamp it shows on serial port.
GUI-O app is requesting LIGHT ON!
TON
SEN:1
@nfc1 -2 dev:OF24 R. Paris Nr.32 usr:
@light_on 1 dev:OF24 R. Paris Nr.32 usr:

GUI-O app is requesting LIGHT OFF!
@nfc1 -2 dev:OF24 R. Paris Nr.32 usr:
@light_off 1 dev:OF24 R. Paris Nr.32 usr:

Perhaps you can see what i make wrong
Thank You

Best regards

kl3m3n

@sato Hello!

Regarding the TON component - this component plays the tones builtin the Android device. Their length is predetermined. If you check out the manual, it says:

For TONT -> Tone type number. For reference see:
https://developer.android.com/reference/android/media/ToneGenerator

and

For EDUR -> Duration of tone in msec. Ignored if
tone duration is shorter.
Maximum duration limited to 5000
msec.

Regarding the NFC - if "-2" is returned, it means that NFC is available, but not enabled (see the manual).

You don't need to repeat the messages to enable NFC scanning. Try sending just one message:

Enable NFC detection:
|NFC UID:nfc1 HID:nfc SEN:1

Disable NFC detection:
@nfc1 SEN:0

Do you use Android 12? Do you have latest app version installed (v1.0.16)? There was a minor fix for Android 12 in this version release.

Best regards.
kl3m3n

Sato

Hi kl3m3n,

Thanks.
With the short sound it's no problem, but the NFC still doesn't work here.
As I informed, the only reaction from Gui-O is @nfc1 -2, I just switch off the NFC on the Phone to see if Gui-O would react.

I don't think I'm doing anything wrong, but if you want I'll send your code example to see if it works.

Yes, i update to the new version

Best regards

kl3m3n

@sato There was a mistake on my side. There were some changes in Android 12 that were not handled correctly by GUI-O app. Now it should work - I have tested it on Android 12 and Android 11.

The version that has the fix is v1.0.17.

I would appreciate the feedback.

Thank you.

Best regards,
kl3m3n

Sato

Hi kl3m3n,

Ok, Thank You
At this moment the new version is not yet available on Google Play.

Regards

Sato

Hi kl3m3n,

Well done, congrats!

So, now will see to implement it in my programm

THANK YOU

Best regards