Posts made by LaMB95

@mfalkvidd Ah thanks ! Also when you mean power it with 3.3V do you mean just the nrf module or the entire Pro mini board ?

@mfalkvidd I m sorry but Whats flashing a sketch ?

@mfalkvidd
Well, I do believe that is the underlying issue here. But the NRF modules can't handle VCC more than 3.3V so I took a 3.3V connection from my breakout board (CP2012) and supplied to the NRF module (Vcc pin only).
Could this be causing the issue?

@gohan Well I was gonna use the received text to test the communication itself. The whole point I got a pro mini was to connect it as a serial gateway to the RPi3 and see it on Domoticz as we discussed earlier.

@gohan
Code in Pro Mini:

#include <HardwareSerial.h>
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 radio(9, 10);

const byte rxAddr[6] = "00001";

void setup()
{
  while (!Serial);
  Serial.begin(9600);
  
  radio.begin();
  radio.openReadingPipe(1, rxAddr);
  
  radio.startListening();
}

void loop()
{
  if (radio.available())
  {
    char text[32] = {0};
    radio.read(&text, sizeof(text));
    
    Serial.println(text);
  }
}

Code in Uno:

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 radio(9, 10);

const byte rxAddr[6] = "00001";

void setup(void)
{
  radio.begin();
  //Serial.println(F("*** PRESS 'T' to begin transmitting to the other node"));
  radio.setRetries(15, 15);
  radio.openWritingPipe(rxAddr);
  
  radio.stopListening();
}

void loop(void)
{
  const char text[] = "Hello World";
  radio.write(&text, sizeof(text));
  
  delay(1500);
}

I have set the processor to 3.3V 8MHz.
I have connected the Pro mini to the computer via a CP2102 breakout board.

@gohan

I am facing an issue while sending data from an Arduino pro mini 5V to an arduino UNO. Receiving a lot of garbage from the Pro mini.
Any idea why ?

@mfalkvidd

It worked yesterday now I am back to the same problem.
What a wonder !

@mfalkvidd Haha not really a 3.3 output I changed its input voltge to 3.3 hoping it would work.

But nevertheless I managed to solve the issue.
It seems to be an error in the Hardware serial.

Refer: http://forum.arduino.cc/index.php?topic=46458.0

The code bhagman has posted worked !

@mfalkvidd

I have an arduino pro mini 5V. But I have attached a breakout CP2102 usb connection to it. On the board there is a 3.3V point which I have plugged in as Vcc to the NRF24L01+ module.

To upload the code I have selected the 5V 16Mhz as processor.

@gohan
Thanks for the code!

I have been trying to send data from an Uno to a pro mini. Unfortunately, I have been receiving symbols and gibberish on the mini as it has be assigned as a receiver.
Any clue why?
I was hoping to send the collected data from the pro mini to the RPi3 via serial gateway and then to Domoticz.

I m getting symbols when I send Hello World message from Arduino Uno to an Arduino Pro Mini (5V).
Yes I have put an input of 3.3V to the pro mini.
Baud rate used is 9600.
Any clue why this is happening? I can provide the code.

@gohan

SO what changes did you make to the gateway arduino in order to recieve the data from a sensor node?

I am confused.

If I am sending data from an Arduino to a RPi3 using NRF24L01+.
Won't the Arduino be a sensor node?
If so, does that make the rpi3 the recieving node which is also acting like a gateway to a controller (OpenHab)?

Does anyone know how to set up the raspberry to collect this sensor data?
Or do I have to add an arduino to it for collecting this data?

Anyone have an instruction to set up a W5500 ethernet gateway?

@hugo_pn

Okay could you check what version of Arduino IDE you have now ?
If there is a newer version upgrade to that.

My issue was that I could not find the library manager in the version I had.

Hope it helps !

@gohan

Well considering how difficult it seems at times I think I will stick to it for now.

Could you point me towards the tutorial you used for your project?
I might try to create something for the time being with your help!

Thanks !

@mfalkvidd

I checked the page!
It was quite helpful and I realise that a serial gateway is not something that I need.

I need some help to understand the working of a virtual serial port.

@mfalkvidd @gohan

What I am trying to do is to put the arduino in my garage and send this data to something like OpenHab or Wordpress such that I can see the parking status from another location.

And a couple of youtube tutorials I saw were able to send the data from an arduino to a pi (without any USB cable) using this radio.
I was hoping such a method is possible using the MySensors library.

Another question I have is what aout using a virtual serial port ? But I think I would need an ethernet shield on the arduino. Am I right?

@mfalkvidd

Any solution?

@gohan

So what gateway would be chosen if the data is sent from the Arduino to the rpi3 using these modules?
I mean I saw a youtube tutorial to send it directly from an arduino to the rpi3 and I figured the same would be possible using a my sensors library and instruction.

I don't wish to add an Arduino to the rpi3 just for data collection.
Any suggestions?

@gohan
Using Arduino with Serial Gateway sketch using NRF24L01+ to a Rpi3

I am trying to send some ultrasonic data from an arduino uno to RPI3.
My Arduino Code is:

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24

// Set LOW transmit power level as default, if you have an amplified NRF-module and
// power your radio separately with a good regulator you can turn up PA level.
#define MY_RF24_PA_LEVEL RF24_PA_LOW

// Enable serial gateway
#define MY_GATEWAY_SERIAL

// Define a lower baud rate for Arduino's running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
#if F_CPU == 8000000L
#define MY_BAUD_RATE 38400
#endif

// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
//#define MY_INCLUSION_BUTTON_FEATURE

// Inverses behavior of inclusion button (if using external pullup)
//#define MY_INCLUSION_BUTTON_EXTERNAL_PULLUP

// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 60

#define PARK_OFF_TIMEOUT 20000 // Number of milliseconds until turning off light when parked.

#include <MySensors.h>

#define SEND_STATUS_TO_CONTROLLER  // Put a comment on this line for standalone mode

//#include <NewPing.h>

#ifdef SEND_STATUS_TO_CONTROLLER
// Enable debug prints to serial monitor
#define MY_DEBUG 

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

#ifdef SEND_STATUS_TO_CONTROLLER
#define CHILD_ID 1
MyMessage msg(CHILD_ID,V_TRIPPED);
#endif

unsigned long sendInterval = 5000;  // Send park status at maximum every 5 second.
unsigned long lastSend;
int oldParkedStatus=-1;

#define echo_Pin 6 // Echo Pin
#define trig_Pin 5 // Trigger Pin

int blueledPin = 3;      // the pin the LED is attached to (use one capable of PWM)
int greenledPin = 7;
int redledPin = 2;
int a = 850;
long duration, value;

void setup() {
  // initialize serial communication:
  Serial.begin(115200);
  Serial.println("Starting distance sensor");
  pinMode(greenledPin, OUTPUT);
  pinMode(redledPin, OUTPUT);
}

#ifdef SEND_STATUS_TO_CONTROLLER

void presentation()
{
  sendSketchInfo("Parking Sensor", "1.0");
  present(CHILD_ID, S_DOOR, "Parking Status");
}
#endif

void loop() {
  //and the distance result in centimeters:
 
  pinMode(trig_Pin, OUTPUT);
  digitalWrite(trig_Pin, LOW);  // Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
  delayMicroseconds(10);
  digitalWrite(trig_Pin, HIGH); // The sensor is triggered by a HIGH pulse of 10 or more microseconds.
  delayMicroseconds(5);
  digitalWrite(trig_Pin, LOW);
  // Read the signal from the sensor: a HIGH pulse whose duration is the time (in microseconds) 
  // from the sending of the ping to the reception of its echo off of an object.
  pinMode(echo_Pin, INPUT);
  duration = pulseIn(echo_Pin, HIGH);
 // value = microsecondsToCentimeters(duration);  // convert the time into a distance
 value = (duration/58.138);
  Serial.print(value);
  Serial.print ("cm");
  Serial.println(); // Displays readings one beneath other.
  delay(500); // Rate of displaying the readings
    
   // Update parked status
    int parked = value != 0 && value < 54;
    {
      if (parked)
        { Serial.println("Car Parked");
          digitalWrite (redledPin, HIGH);
          delay(a);
          digitalWrite (redledPin, LOW);
        }
        else
        { Serial.println("Car Gone");
          digitalWrite(greenledPin, HIGH);
          delay(a);
          digitalWrite(greenledPin, LOW);
        }
      } 
        #ifdef SEND_STATUS_TO_CONTROLLER
        send(msg.set(parked)); 
        #endif
        oldParkedStatus = parked;
        //lastSend = now;
      }

While this code runs succefully (I Hope)

I would like to send the collected data on to a wordpress site from the Raspberry Pi 3 (RP3 is hosting one already). I would prefer to send it to an OpenHab or a controller to implement some functions.

But the main issue I am facing is this error.

The configure used is

Some help would be appreciated.

@mfalkvidd
Thanks !
However I am still facing some issues trying to set up a gateway with the raspberry pi,

Do you know who could help me with that ?

@mfalkvidd @gohan

Just resolved the issue !

Apparently my Arduino Ide wasnt updated to the lastest version which explains why I never found the Library Manager

@LaMB95 said:

@ericvdb

Okay what could be the problem? :3

@marceloaqno

I m sorry I m new to using a raspberry pi and its for a project.
But if this is not what you asked for could you be a little more specific :$

@marceloaqno !

Is this what you meant?

@marceltrapman

I am using a Rasp Pi 3 as well.
I can't even proceed further in the tutorial cause of this error cause nothing works after it.

ran sudo ./bin/mysgw -d
I keep getting mysgw: accept: Bad File Descriptor.
Any possible cause ?

I have been working on the installation of the libraries.
I have Added them to the Arduino ide software but when I run the gateway serial code it shows that
fatal error: MySensors.h: No such file or directory
compilation terminated.

What is causing this?
PS I am using a Macbook

Thank you so much for getting back to me!

When you mean serial gateway is it something where the Arduino is directly connected to the pi?
I wasn't sure which code to implement on the Arduino to send the sensor data.
What I need is a code from the Arduino to send the data from an ultrasonic sensor to a database (or something) on the pi using the NRF modules.

I have been looking at instructions to set up a communication system where I can send my Arduino data to a Raspberry Pi via a NRF24L01+.

I have used this link: https://www.youtube.com/watch?v=_68f-yp63ds&lc=z12wivkbyr3uzleri04ccblr3wflyntwpgk

While everything run there is no data sent or received.

If anyone could give me an advice or correction or even provide me with a new insturction link it would help !

I am planning to send ultrasonic data or a HMC5883L data to the pi.