Hi again
I've done a simple test.
I grab my dht11 sensor in my hand and after some time values are being see my values being send in my serial debug. I don't know why yesterday values was sending all the time but...
Sketch is working and reports temp changes by 1 degree.
Best regards and thx for answers

Hi rechin304
Thank You for Your code...It's working great!!!
Best regards

@Łukasz-Kostrzewa said:

send(scene.set(keyInt));

Hi
After
send(scene.set(keyInt));
Add
send(scene2.set(keyInt));
Write this code to arduino (now You can OFF all the switches) Next delete code You added and write it to Arduino once again but now in Domoticz make modifications I writed couple post higher. When You do that You will be able to control 4 scenes and another 4 will bo halpefull to OFF the first4 (when You hold the buttons)

The 2.0 version code:

#define MY_DEBUG
#define MY_RADIO_NRF24

#include <SPI.h>
#include <MySensors.h>
#include <Keypad.h>

#define NODE_ID 14 // or set to AUTO if you want gw to assign a NODE_ID for you.
#define SN "Scene Controller"
#define SV "1.0"
#define KEYPAD_CHILD_ID 95

MyMessage scene(KEYPAD_CHILD_ID, V_SCENE_ON); 
MyMessage scene2(KEYPAD_CHILD_ID, V_SCENE_OFF); 

const byte ROWS = 4; //four rows
const byte COLS = 1; //three columns
char keys[ROWS][COLS] = {
  {'1'},
  {'2'},
  {'3'},
  {'4'}
};

byte rowPins[ROWS] = {6, 7, 4, 5}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {8}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
byte lastState;


void setup() {
  
  sendSketchInfo(SN, SV);
  present(KEYPAD_CHILD_ID, S_SCENE_CONTROLLER);
  keypad.addEventListener(keypadEvent);
}

void loop() {
  char key = keypad.getKey();
}

void keypadEvent(KeypadEvent key) {
  switch (keypad.getState()) {

    case PRESSED:
      lastState = 1;
      break;

    case HOLD:
      lastState = 2;
      break;

    case RELEASED:
      int keyInt = key - '0'; //Quick way to convert Char to Int so it can be sent to controller
      if (lastState == 2) {
        keyInt = keyInt + 4; //If button is held, add 4.  If using more than 4 buttons this number will need to be changed
      }
      send(scene.set(keyInt));
      break;
 }
}       

You could do that but it is not a great solution.
Add to Domoticz all 8 switches (4 when pressed and 4 when hold).
In first switch (pressed switch) add Slave device (first hold switch). Do it for all 4 switches.
To 5,6,7,8 switches add Slave Device (1,2,3,4 switch).
It works like that:
When You press First number on keyboard it change state to ON and 5 to OFF
When You Hold first number on keybord it change state of 5 switch to ON and first to OFF.
Next You have to make some events to trigger some scenes or lights
I have hope I managed to explain what I mean
Best regards

Hi
I delated my post because it pasted wrong. I try to paste it correctly but don't know how:( (hek - maybe You as an administrator can paste it corectly?)

dvr123 have right that this code recognize the buton only on the first click:(
Mayby someone knows how to modify the code to work like normal buton (not the scene controller)?

Best regards

One hour ago Temp and humidity sensor stopped working I'm not strong enough to use arduino and my sensors:( I need to buy another raspberry pi and set it as a slave (I have 4 in my house and I have no problem with them).
Best regards

Hi
Maybe it is broken. I don't know :(I have couple of DHT11 sensors and some of them are working sam of them are not
From yesterday (so far) everything works great
I report later if something will broke.
Best regards

Hi
Powers source - phone charger 5V 1Aand Yes...I use 4,7 capacitor at the radio.

Hi
After hour script back to the beginning and now it sends temp + hum values every second:)
I don't understand what is going on
Best regards