ReVert Timerless PWM

The board has an onboard 100A n-channel mosfet to drive the negative of an atomiser in a mod. The thinking is to eliminate the very common use of a timer IC in the 555 family and create an effective PWM board using very basic circuitry. This board is likely to work some of the time if not all of the time. I will test it throroughly and a newer version may be created. Most likely failure points are the LDO and the use of an NPN to trigger the nfet. I would advise to treat this as an experimental board at this point in time, hence not providing partslist or instructions.