Compilation Error in Encoder Library

[bigguswiggus]

I am trying to use a rotary encoder to adjust a number on a display. The rotary encoder I am using is a Bourns PEC11H-4220F-S0024 Quadrature Rotary Encoder, and the display is a TM1637 7-Segment 4-Digit Display.

When trying to compile any program using the Encoder library, (including examples provided with the library), I get the following errors.

In file included from C:\Users\user\AppData\Local\Temp\.arduinoIDE-unsaved202515-25908-1hzpyo3.3j73\sketch_feb5a\sketch_feb5a.ino:5:0:
c:\Users\user\Documents\libraries\Encoder/Encoder.h:68:11: error: 'IO_REG_TYPE' does not name a type
  volatile IO_REG_TYPE * pin1_register;
           ^~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:69:11: error: 'IO_REG_TYPE' does not name a type
  volatile IO_REG_TYPE * pin2_register;
           ^~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:70:2: error: 'IO_REG_TYPE' does not name a type
  IO_REG_TYPE            pin1_bitmask;
  ^~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:71:2: error: 'IO_REG_TYPE' does not name a type
  IO_REG_TYPE            pin2_bitmask;
  ^~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h: In constructor 'Encoder::Encoder(uint8_t, uint8_t)':
c:\Users\user\Documents\libraries\Encoder/Encoder.h:89:11: error: 'struct Encoder_internal_state_t' has no member named 'pin1_register'
   encoder.pin1_register = PIN_TO_BASEREG(pin1);
           ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:89:27: error: 'PIN_TO_BASEREG' was not declared in this scope
   encoder.pin1_register = PIN_TO_BASEREG(pin1);
                           ^~~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:89:27: note: suggested alternative: 'ITM_BASE'
   encoder.pin1_register = PIN_TO_BASEREG(pin1);
                           ^~~~~~~~~~~~~~
                           ITM_BASE
c:\Users\user\Documents\libraries\Encoder/Encoder.h:90:11: error: 'struct Encoder_internal_state_t' has no member named 'pin1_bitmask'
   encoder.pin1_bitmask = PIN_TO_BITMASK(pin1);
           ^~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:90:26: error: 'PIN_TO_BITMASK' was not declared in this scope
   encoder.pin1_bitmask = PIN_TO_BITMASK(pin1);
                          ^~~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:90:26: note: suggested alternative: 'PIN_USE_MASK'
   encoder.pin1_bitmask = PIN_TO_BITMASK(pin1);
                          ^~~~~~~~~~~~~~
                          PIN_USE_MASK
c:\Users\user\Documents\libraries\Encoder/Encoder.h:91:11: error: 'struct Encoder_internal_state_t' has no member named 'pin2_register'
   encoder.pin2_register = PIN_TO_BASEREG(pin2);
           ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:92:11: error: 'struct Encoder_internal_state_t' has no member named 'pin2_bitmask'
   encoder.pin2_bitmask = PIN_TO_BITMASK(pin2);
           ^~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:99:31: error: 'struct Encoder_internal_state_t' has no member named 'pin1_register'
   if (DIRECT_PIN_READ(encoder.pin1_register, encoder.pin1_bitmask)) s |= 1;
                               ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:99:54: error: 'struct Encoder_internal_state_t' has no member named 'pin1_bitmask'
   if (DIRECT_PIN_READ(encoder.pin1_register, encoder.pin1_bitmask)) s |= 1;
                                                      ^~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:99:7: error: 'DIRECT_PIN_READ' was not declared in this scope
   if (DIRECT_PIN_READ(encoder.pin1_register, encoder.pin1_bitmask)) s |= 1;
       ^~~~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:100:31: error: 'struct Encoder_internal_state_t' has no member named 'pin2_register'
   if (DIRECT_PIN_READ(encoder.pin2_register, encoder.pin2_bitmask)) s |= 2;
                               ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:100:54: error: 'struct Encoder_internal_state_t' has no member named 'pin2_bitmask'
   if (DIRECT_PIN_READ(encoder.pin2_register, encoder.pin2_bitmask)) s |= 2;
                                                      ^~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:100:7: error: 'DIRECT_PIN_READ' was not declared in this scope
   if (DIRECT_PIN_READ(encoder.pin2_register, encoder.pin2_bitmask)) s |= 2;
       ^~~~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h: In static member function 'static void Encoder::update(Encoder_internal_state_t*)':
c:\Users\user\Documents\libraries\Encoder/Encoder.h:303:40: error: 'struct Encoder_internal_state_t' has no member named 'pin1_register'
   uint8_t p1val = DIRECT_PIN_READ(arg->pin1_register, arg->pin1_bitmask);
                                        ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:303:60: error: 'struct Encoder_internal_state_t' has no member named 'pin1_bitmask'
   uint8_t p1val = DIRECT_PIN_READ(arg->pin1_register, arg->pin1_bitmask);
                                                            ^~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:303:19: error: 'DIRECT_PIN_READ' was not declared in this scope
   uint8_t p1val = DIRECT_PIN_READ(arg->pin1_register, arg->pin1_bitmask);
                   ^~~~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:304:40: error: 'struct Encoder_internal_state_t' has no member named 'pin2_register'
   uint8_t p2val = DIRECT_PIN_READ(arg->pin2_register, arg->pin2_bitmask);
                                        ^~~~~~~~~~~~~
c:\Users\user\Documents\libraries\Encoder/Encoder.h:304:60: error: 'struct Encoder_internal_state_t' has no member named 'pin2_bitmask'
   uint8_t p2val = DIRECT_PIN_READ(arg->pin2_register, arg->pin2_bitmask);
                                                            ^~~~~~~~~~~~

exit status 1

Compilation error: exit status 1

The code I compiled to get these errors is the following:

#include <Arduino.h>
#include <TM1637Display.h>

#define ENCODER_DO_NOT_USE_INTERRUPTS
#include <Encoder.h>

int encodeA = 5;
int encodeB = 6;
int numLock = 4;
int lastStateCLK;
int currentStateCLK; 
int dispCLK = 3;
int dispDIO = 2;
int servoNum = 1;

TM1637Display display(dispCLK, dispDIO);

Encoder myEnc(5, 6);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  delay(200);

  pinMode(encodeA, INPUT_PULLUP);
	pinMode(encodeB, INPUT_PULLUP);
  pinMode(numLock, INPUT_PULLUP);

  lastStateCLK = myEnc.read();

  Serial.println("Initial Encoder State Read");

  display.setBrightness(5); // Sets the brightness level to 5
  uint8_t data[] = {0xff, 0xff, 0xff, 0xff}; // Turns on the display

  Serial.println("Display On");
}

void loop() {
  // put your main code here, to run repeatedly:
  currentStateCLK = myEnc.read();
  if (currentStateCLK > lastStateCLK) {
    servoNum ++;
  }
  else if (currentStateCLK < lastStateCLK && currentStateCLK != 0) {
    servoNum --;
  }

  if (currentStateCLK != lastStateCLK) {
    lastStateCLK = currentStateCLK;
  }

  display.showNumberDec(servoNum, true);

  Serial.println(servoNum);
}

I am fairly amateur with Arduino and programming so any help is appreciated.

[van_der_decken]

I see that some fairly crucial information has been omitted and that it's 20 questions time, so I'll start off:

What board are you compiling for?

Which Encoder library are you using?

[ruilviana]

Here your code complile.

TM1637_test - Wokwi ESP32, STM32, Arduino Simulator

[van_der_decken]

Ask two straightforward questions, and... radio silence. I guess the OP didn't really want help after all.

[sterretje]

@van_der_decken

Consider that people might post a question just before going to bed or work and will only check for replies the next day or after work.

Remember, netiquette states that one should let a question go around the world for 24 hours; the same applies to replies

[StefanL38]

If you get a compiler-error or an upload-error provide all details for analysing the error

Hi newcomer, the Arduino-Forum community can be of great help. If the community is able to support you in a way that helps solving your problems depends on detailed information that you should provide. trying to be quick by posting a too short posting is just slowing down finding the solution. Because all that happends is that you are asked for the detailed information and have to provide it anyway. Only difference the answer and the solution comes later The most important thing is to post …

[van_der_decken]

I did consider that. I also watched as the OP composed a reply (helpful forum feature) that they never posted. I also noticed as the OP was present on the forum multiple times over the next few hours. Only then did I drop the mic.