You’re proposing a 12 V four-channel sequential coil driver: a 555 astable clocks a CD4017, outputs Q0–Q3 drive four MOSFET channels, and a capacitor bank supplies the coil pulses.

No schematic was created, and the project remains empty. Before implementation, the design still needs key electrical requirements: coil resistance/inductance or rated current, pulse duration and repetition rate, capacitor-bank voltage/capacitance, MOSFET switching topology, and a safe flyback/clamp strategy. Directly connecting CD4017 outputs to power MOSFETs may also require gate resistors, pull-downs, and possibly dedicated gate drivers.

Execution stopped because your ACUs ran out.