diff --git a/plugins_init.h b/plugins_init.h
index d05fc1e..2db8dcc 100644
--- a/plugins_init.h
+++ b/plugins_init.h
@@ -205,6 +205,11 @@
     event_out_init();
 #endif
 
+#if PICOHAL_ENABLE
+    extern void picohal_init (void);
+    picohal_init();
+#endif
+
 // End third party plugin definitions.
 
 #if ODOMETER_ENABLE
diff --git a/spindle_control.h b/spindle_control.h
index 9e2bcfd..71c31ed 100644
--- a/spindle_control.h
+++ b/spindle_control.h
@@ -47,6 +47,7 @@
 #define SPINDLE_SOLENOID   18
 #define SPINDLE_STEPPER    19
 #define SPINDLE_NOWFOREVER 20
+#define SPINDLE_PICOHAL    21
 #define SPINDLE_MY_SPINDLE 30
 
 #define SPINDLE_ALL_VFD ((1<<SPINDLE_HUANYANG1)|(1<<SPINDLE_HUANYANG2)|(1<<SPINDLE_GS20)|(1<<SPINDLE_YL620A)|(1<<SPINDLE_MODVFD)|(1<<SPINDLE_H100)|(1<<SPINDLE_NOWFOREVER))