Pulse
                                
                                
                                
                                    Pulse copied to clipboard
                            
                            
                            
                        Flyback Diode
M1 is an inductive load hooked up to transistor Q1 without any reverse voltage protection. It's possible that the motor is small enough that any voltage spikes it would create are small enough to not harm Q1, but this is neither documented or handled. Would you please either add a protection diode to the motor in the plans or document the lack of a need for a protective diode?