Joistick + IR receiver incompatibilty - MCU Arduino Nano Every

Other Hardware Sensors
1

I'm thinking to a remote platform that will use a IR remote, a servo and a joystick, among other stuff.
This is my first experience with these devices and I made a test platform based on a Nano Every + a serial LCD.
Each of the 3 components were positively tested by their own but when I combine them I felt into a serious problem: when I sent an IR command from the remote I get a continuos flow of erratic readings from the joistick.

In the GitHub page of IRremote library I saw some notes on using the analogWrite togheter with IRremote, but nothing on analogRead.
Later on there is a table that suggest (?) which pin to use with differente MCUs; for the ATmega 4809 it says:

ATmega4809 	TCB0 	A4

Does it mean that I absolutely have to use A4 to receive IR ?

This is a shortened code of my sketch:

/*
 =================================================
 TestBed: Test Servo + Joistick + IR receiver with remote
 HW: Nano Every + serial I2C LCD 
==================================================
*/

/* NOTE:
   Servo position is set by some IR commands from the remote
   and displayed on the LCD.
   The Joystick is intended to move the receiving unit (or other devices).
   These 2 inputs (servo and joy) are used in different not overlapping moments
*/
   
   
#define DECODE_NEC  // Includes Apple and Onkyo

#include <Arduino.h>
#include <Wire.h>
#include <hd44780.h>
#include <hd44780ioClass/hd44780_I2Cexp.h>
#include <Servo.h>
#include <IRremote.hpp>

#define IR_PIN SS
#define SERVOPIN 10
#define JOYX A0
#define JOYY A1
#define JOYSW A2

uint8_t Xvalue, Yvalue, lastX, lastY;
uint8_t JoyDelta = 7;
uint8_t switchStat, oldStat;
uint8_t SWDelta = 128;

Servo myservo;

void setup() {
  pinMode(SERVOPIN, OUTPUT);
  pinMode(IR_PIN, INPUT);
  pinMode(JOYSW, INPUT);
  Serial.begin(9600);
  Wire.begin();
  IrReceiver.begin(IR_PIN);
  myservo.attach(SERVOPIN);
  myservo.write(90);  // set servo to mid-point
  ...
  }

void loop() {
  if (IrReceiver.decode()) {
  ...do something
      IrReceiver.resume();  // Enable receiving of the next value
  }
  
  /* ========= here comes the problem ==========*/
  Xvalue = analogRead(JOYX);
  delay(2);
  Yvalue = analogRead(JOYY);
  
   // impose a dead zone to prevent unwanted changes due to noise
  if (abs(Xvalue - lastX) > JoyDelta || abs(Yvalue - lastY) > JoyDelta) {
    sprintf(buf, "X=%u , Y=%u", Xvalue, Yvalue);
    Serial.println(buf);
    lastX = Xvalue;
    lastY = Yvalue;
  }

  switchStat=analogRead(JOYSW);
  if (abs(switchStat - oldStat) > SWDelta) {
    Serial.print("Switch=");
    Serial.println(switchStat);
    oldStat=switchStat;
  }
  
}

Thanks

2

I think that it might mean you only have to use an analog pin but just test both to see if it works either way. I'm not sure if the analog pins are specific in some way like the digital pins have pwm but I don't think it's that way for analog pins.

Best of luck from,
zm476

3

Power problems?

4

I can not believe that.
The same testbed was used with much more sensors and power requirements.