controllino maxi SPI problem

[Mou-Kros]

Hello

I connected the NRF24L01 with the controllino maxi power to receive the radio signal from another microcontroller

The problem is that the code does not work, although I did not encounter this problem when using the Arduino mega

I have connected the pin of NRF24L01 to controllino like this :

MOSI ——– MOSI

MISO ——— MISO

CONTROLLINO_D5 ———— CE

CONTROLLINO_D6————CSN

GND —- GND

3.3V —–VCC

Here is the code :

#include <SPI.h>

#include <Controllino.h>

#include <nRF24L01.h>

#include <RF24.h>

RF24 radio(7,8); // nRF24L01 (CE, CSN)

const byte address[6] = “00001”;

unsigned long lastReceiveTime = 0;

unsigned long currentTime = 0;

const int led = 2;

const int led2 = 4; //CONTROLLINO_D4;

struct Data_Package {

byte button1;

byte tSwitch1;

};

Data_Package data; //Create a variable with the above structure

void setup() {

// put your setup code here, to run once:

Serial.begin(9600);

radio.begin();

pinMode(led, OUTPUT);

pinMode(led2, OUTPUT);

radio.openReadingPipe(0, address);

radio.setAutoAck(false);

radio.setDataRate(RF24_250KBPS);

radio.setPALevel(RF24_PA_LOW);

radio.startListening(); // Set the module as receiver

resetData();

}

void loop() {

// Check whether there is data to be received

if (radio.available()) {

radio.read(&data, sizeof(Data_Package)); // Read the whole data and store it into the ‘data’ structure

lastReceiveTime = millis(); // At this moment we have received the data

}

// Check whether we keep receving data, or we have a connection between the two modules

currentTime = millis();

if ( currentTime – lastReceiveTime > 1000 ) { // If current time is more then 1 second since we have recived the last data, that means we have lost connection

resetData(); // If connection is lost, reset the data. It prevents unwanted behavior, for example if a drone has a throttle up and we lose connection, it can keep flying unless we reset the values

}

if (data.button1 == HIGH) {

digitalWrite(led, HIGH);

digitalWrite(led2, HIGH);

}

else {

digitalWrite(led, LOW);

digitalWrite(led2, LOW);

}

delay(50);

}

void resetData() {

// Reset the values when there is no radio connection – Set initial default values

data.button1 = 1;

}

[Lukas]

Please see FAQ#7

You should call Controllino_RTC_init(); before you use SPI for external device.

Lukas

[RoydL]

Hello Mou-Kros and Lukas,

I do have the same issue as Mou-Kros had. The nRF24L01 works with an Arduino Uno, but as soon as it’s connected to the SPI of the Controllino maxi I don’t get any response. Did you get it to work after some changes? And if so, where in the program did you add the Controllino_RTC_init();?

I tried several positions, but till now I could not get the right values in my serial monitor.

Kind regards,

Roy