testAnalogPinMap.ino

// #define IS_PIN_ANALOG(p)        ((p) == 0 || ((p) >= 3 && (p) <= 13))
// #define PIN_TO_ANALOG(p)        ((p) == 0 ? 0 : ((((p) >= 1 && (p) <= 11)) ? ((p) + 2) : (p)))
#include <Servo.h>
#include <Wire.h>
#include <Firmata.h>

void setup() {
  pinMode(PIN_BTN1, INPUT);
  Serial.begin(9600);
}

void loop() {
 static uint8_t p1 = digitalRead(PIN_BTN1);
    if (digitalRead(PIN_BTN1) != p1) {
        p1 = digitalRead(PIN_BTN1);
        if (p1 == HIGH) {
          for (int ii = 0; ii < 21; ii += 1) {
            Serial.printf("A%d, toPin: %d, isPinAnalog: %d\n",ii, PIN_TO_ANALOG(ii), IS_PIN_ANALOG(PIN_TO_ANALOG(ii)));
          }
        }
    }
}