[Grbl_Esp32 Issue#436] Tool selection GPIO pin. Laser / Spindle About GRBL HAL

Issue #436 | 状态: 进行中 | 作者: greenmagics | 创建时间: 2020-06-14

Hello!

The cnc machine I build has replaceable “overlays” on the Z axis. I can install a spindle or a laser. Of course, only one type is used at a time.

I came up with the idea to connect a switch to IO27 and choose whether to use a laser or a spindle before starting.
!schematic

Based on the status on IO27, I want to choose “SPINDLE_TYPE”, so I wrote a short code in the “Custom” folder.

Should I choose “SPINDLETYPE” in the machines.h file, which will be overwritten by Customcode.cpp?

(Of course, both files have the same name)

Custom_code.cpp
“#ifdef USEMACHINEINIT void machine_init() { pinMode(LASER/SPINDLEPIN, INPUTPULLUP);

if (digitalRead(LASER/SPINDLE_PIN) == 0) { #define SPINDLETYPE SPINDLETYPE_LASER } else { #define SPINDLETYPE SPINDLETYPE_PWM } } #endif`

Machines.h`#define MACHINENAME "CNCGREENMAGIC"


#define USEMACHINEINIT
#define N_AXIS 4
#define XSTEPPIN              GPIONUM2

#define XDIRECTIONPIN         GPIONUM15

#define YSTEPPIN              GPIONUM0

#define YDIRECTIONPIN         GPIONUM4

#define ZSTEPPIN              GPIONUM12

#define ZDIRECTIONPIN         GPIONUM13

#define ASTEPPIN              GPIONUM33

#define ADIRECTIONPIN         GPIONUM21

#define STEPPERSDISABLEPIN    GPIONUM22
#define LASER/SPINDLEPIN		GPIONUM_27 // connected to ground= laser
//#define SPINDLETYPE            SPINDLETYPE_PWM // only one spindle at a time
#define SPINDLEOUTPUTPIN      GPIONUM25 //DAC 1

#define SPINDLEENABLEPIN      GPIONUM26 //DAC 2
#define XLIMITPIN             GPIONUM34 //needs external pullup

#define YLIMITPIN             GPIONUM35 //needs external pullup

#define ZLIMITPIN             GPIONUM32

#define LIMIT_MASK      		B111
#define CONTROLRESETPIN       GPIONUM17  // labeled Reset

#define CONTROLFEEDHOLDPIN   GPIONUM_39  // SVN  labeled Hold,  needs external pullup

#define CONTROLCYCLESTARTPIN GPIONUM_36  // SVP  labeled Start, needs external pullup

#define PROBEPIN GPIONUM_14 #define COOLANTMISTPIN GPIONUM16“

Is my idea good?
Regards, Szymon from Poland

原始Issue: https://github.com/bdring/Grbl_Esp32/issues/436