1.0 KiB
1.0 KiB
+++ title = "GRBL_ESP32 tips" weight = 3 sort_by = "weight" insert_anchor_links = "right" +++ I made a CNC that uses a custom board I designed, and which runs GRBL_ESP32. I couldn't find the following info easily, so I've written it here:
- You can specify the enable pin for the drivers with the
STEPPERS_DISABLE_PINoption. This should be used like#define STEPPERS_DISABLE_PIN GPIO_NUM_2. - To invert the enable signal, you can use
#define DEFAULT_INVERT_ST_ENABLE 1. My board needed the enable signal to not be inverted (that's what A4988/Trinamic TMC2208 drivers need), so I set it to 0. - To always keep the steppers enabled (locked) to avoid them moving, you can specify
$Stepper/IdleTime=255. That's the maximum timeout and will always keep them enabled.
Last updated on February 15, 2021. For any questions/feedback, email me at hi@stavros.io.