Marcin Przyborowski

https://easyeda.com/polaski/arduino-dcservo-emulator For uno

https://easyeda.com/polaski/esp32-cnc-shield_copy OK. So lets pair it with that shield :P

How does that Homing pin works?

In my case it may signal "I can't keep up" to let the main grbl driver know that he need to w8 with execution. I've got 2 PNP limit switches...

Yea, i want to go for it. Becouse it may be crucial feature in my CNC build. It let me calculate max feedrate i can go. Can You rethink how...

Yes. You got the point Alarm signal for main GRBL board to slow down execution. Rename the pin from Homing to Alarm with comment //Pin HIGH when motor "Can't keep...

Yea. This should be good. Arduino usb is enough to setup this. Users need to setup PID values as well as Alarm threshold.

Can You add this? Commented version to chose between Homing and Alarm pin. User will chose what type of operation will be executed during porgraming an Arduino.

Ok. Im using uno version. I will test it. Maybe i wont even use homing pin at all... I've got problem with my GRBL driver with step sticks.

``` #include #define SERIAL2_RX_PIN 16 #define SERIAL2_TX_PIN 17 // Indeksy rejestrów #define REG_ID 0 #define REG_PENDING_FLAG 1 #define REG_TARGET_POSITION 2 float targetPosition = 0.00; unsigned long previousMillis_rs = 0; //...