gewoongijs / vid28 Goto Github PK

Hi,
beginner here. I have a VID28-05 / BKA30D-R5 motor and I am using an ESP32.
The motor has 4 connectors, your code only offers 3 pins, am I still able to use the motor with you lib?

If so, can you give me a quick hint how to do so?

Best
s256

Could you provide an example of how to use this standalone?

I would like to try it with an x27 stepper motor. I will let you know if it's compatible.

Hi,

I am controlling 2 motors, and using your repo as arduino framework.

It looks like it works, but when using the functions setTime ( ) and call the current time with seconds(), the seconds() only updates every 4 seconds, or the time is running 4 times slower then my stopwatch.

this is my setup code:

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  setPrescaler(0, 1);
  setPrescaler(1, 1);
  setPrescaler(2, 1);
  setTime(1, 0, 0, 1, 1, 1);
}

and this is my loop code

void loop(void)
{
  // the motor only moves when you call update()
  motor.update();  
  if(second() != currentS){
    //move to next second
    currentS = second();
    motor.setPosition(currentS * 72);
  }
}

when I disable the line setPrescaler(0, 1);
it runs perfectly, but activating it, suddenly slows down the clock by a factor 4

/Users/hugo/Documents/Arduino/libraries/MotorVID28/src/util/util.c: In function 'setPrescaler':
/Users/hugo/Documents/Arduino/libraries/MotorVID28/src/util/util.c:40:5: error: 'TCCR2B' undeclared (first use in this function); did you mean 'TCCR0B'?
TCCR2B = TCCR2B & 0b11111000 | mode;

According to datasheet, Timer/Counter2 not available (https://ww1.microchip.com/downloads/en/devicedoc/atmel-7766-8-bit-avr-atmega16u4-32u4_datasheet.pdf page 95)

The README says:

N.B. The motors do have four pins, but from the datasheet it can be seen that pin 2 and 3 are simultaneously high and low during the complete step cycle. Therefore i did connet pin 3 and 4 of the motor to the same I/O pin on the Arduino.

Shouldn't it be connecting pin 2 and 3 to the same I/O pin?

The VID28 datasheet has labelled pins 1, 2, 3, 4. What should the corresponding pins be mapped in the MotorVID28 constructor? Also why is pin1 not unsigned?

Hi,

I am really sorry, but I don't understand how to connect the pins only using 3 cables. I understand that the pins 2 and 3 of the motor should be controlled by the same pin on the Arduino, but not in which order.

Imagine this is my constructor (as in the example):
MotorVID28 motor(360*3*4, true, 9, 11, 10);

Does that mean:
Arduino pin 9 -> motor pin 1
Arduino pin 10 -> motor pin 2 and motor pin 3
Arduino pin 11 -> motor pin 4

Or is there another configuration?

if you can point me to the place in your code how I could have known this, that would help me in learning.

Hello!
I would like to use your library with an ESP8266 and/or ESP32.
While compiling for ESP32 I get the following Error:

Arduino: 1.8.13 Hourly Build 2020/06/12 06:33 (Windows 10), Board: "ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

D:\Eigene Dateien\Dokumente\Arduino\libraries\MotorVID28\src\util\util .c:2:25: fatal error: util/atomic.h: No such file or directory

compilation terminated.

exit status 1

Arduino: 1.8.13 Hourly Build 2020/06/12 06:33 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Disabled (new aborts on oom), Disabled, All SSL ciphers (most compatible), 32KB cache + 32KB IRAM (balanced), Use pgm_read macros for IRAM/PROGMEM, dtr (aka nodemcu), 26 MHz, 40MHz, DOUT (compatible), 1MB (FS:64KB OTA:~470KB), 2, nonos-sdk 2.2.1+100 (190703), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

ESP8266:
D:\Eigene Dateien\Dokumente\Arduino\libraries\MotorVID28\src\util\util .c:2:10: fatal error: util/atomic.h: No such file or directory

2 | #include <util/atomic.h>

  |          ^~~~~~~~~~~~~~~

compilation terminated.

exit status 1

Thank you!

Hi,

very inventive libriary to run VID28 steppers directly from atmege386p.
Is setting prescaler for timer0 to 1 really needed to get smooth movements?

Two questions:

1. One pointer is more noisy than the other pointer. Is this related to run timer0 in fast-pwm-mode and not in phase-correct-pwm-mode like timer1 and timer2?
2. I noticed in my code no difference, if I patch wiring.c with your code. Is it actually needed, if I don't use anything like delay(), millis()? This is somehow strange, because you are using micros() in your code.
3. Is it possible to leave the arduino framework as it is and still use prescaler 1 for timer0, if a correction factor to micros is applied (i.e. millis() / 64)?

Thanks,
Timo