added latest Stealthburner stable version
[controller_fan sb2040-fan]
## SB2040 5V fan
pin: sb2040:gpio15
kick_start_time: 0.5 # full speed to spinn of fan
fan_speed: 0.9 #reduce speed to 90%
heater: heater_bed # enabled when heater bed heating
The author remixed this model.
added space for FAN for cooling RPI2040 on board