Hi guys. I built a cnc laser with arduino and grbl 1.1. I changed the grbl to laser mode and try to use the PWM feature at D11. I change the config.h to use variable speed, but when the grbl starts the laser is already turn on, in fact the laser is alway on even when M05. I checked the D11 with multimeter and saw that it was always around 1.3V. Someone can help me? I have no ideia to try. Thanks.