![setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub](https://user-images.githubusercontent.com/30904457/67464669-58543c00-f676-11e9-9bdf-d5ab4f9303f3.jpg)
setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub
![Arduino Nano on Queenbee, cannot control VFD even with PWM to voltage board - Motors, Mechanics, Power and CNC - Arduino Forum Arduino Nano on Queenbee, cannot control VFD even with PWM to voltage board - Motors, Mechanics, Power and CNC - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/5/2/b/52b0c6d680d4d86d69fe4be69e54c7e16c35a979.jpeg)
Arduino Nano on Queenbee, cannot control VFD even with PWM to voltage board - Motors, Mechanics, Power and CNC - Arduino Forum
![setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub](https://user-images.githubusercontent.com/21656956/67480187-57f87880-f657-11e9-850c-442f0d1560fe.jpg)
setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub
![setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub setting up the spindle enable circuit with an arduino relay for plasma cutting · Issue #1568 · grbl/grbl · GitHub](https://user-images.githubusercontent.com/21656956/67480227-6e9ecf80-f657-11e9-8c0a-e3e3957f2263.jpg)