[Grbl_Esp32 Issue#451] Relay to switch milling motor on/off About GRBL HAL

Issue #451 | 状态: 已关闭 | 作者: JensHauser | 创建时间: 2020-06-22

Hi folks,

my self-developed board works with 4 axes (plus limit switches, feed, hold, reset) and should switch on/off a milling motor driven by a relay. No PWM, the speed is adjusted manually with a slider directly at the motor.

So I prepared to use GPIO35 (Door/Flood/Mist are not in use), but serial Arduino interface says “no spindle pin”.

I played with many variations of Spindle PWM, enable, etc., but no luck. Ouput is constantly 1V LOW.

In the ESP32 XYZA"

#ifdef N_AXIS
#undef N_AXIS
#endif
#define N_AXIS 4

#define XSTEPPIN GPIONUM12 / labeled Y /
#define XDIRECTIONPIN GPIONUM14 / labeled Y /
#define YSTEPPIN GPIONUM26 / labeled X /
#define YDIRECTIONPIN GPIONUM15 / labeled X /
#define ZSTEPPIN GPIONUM27 / labeled Z /
#define ZDIRECTIONPIN GPIONUM33 / labeled Z /
#define ASTEPPIN GPIONUM25 //ok
#define ADIRECTIONPIN GPIONUM22 //ok

#define SPINDLETYPE SPINDLETYPE_PWM
#define SPINDLEOUTPUTPIN GPIONUM35

// #define SPINDLEPWMPIN GPIONUM35
// #define SPINDLEENABLEPIN GPIONUM2 //o??

#define LIMIT_MASK B11
#define XLIMITPIN GPIONUM17 //ok
#define YLIMITPIN GPIONUM4 //ok
#define ZLIMITPIN GPIONUM16 //ok
#define ALIMITPIN GPIONUM21 //ok

#define STEPPERSDISABLEPIN GPIONUM13 //ok

// #define COOLANTMISTPIN GPIONUM21
// #define COOLANTFLOODPIN GPIONUM25

#define PROBEPIN GPIONUM_32 //ok

//#define CONTROLSAFETYDOORPIN GPIONUM_35 // needs external pullup
#define CONTROLRESETPIN GPIONUM34 // needs external pullup
#define CONTROLFEEDHOLDPIN GPIONUM_36 // needs external pullup
#define CONTROLCYCLESTARTPIN GPIONUM_39 // needs external pullup
“

#1 – floggy22 于 2020-06-22

Hi,
you can not use pin 35 as an output. It is input only.
https://github.com/bdring/Grbl_Esp32/wiki/Setting-Up-the-I-O-Pins

#2 – JensHauser 于 2020-06-22

So simple, I see it now. Thank you so much, I´ll take care of the hardware and then check the software settings.

原始Issue: https://github.com/bdring/Grbl_Esp32/issues/451

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