Motor control, stepper motor driver module, High‐Speed Power Driver - tatanh1983/conchodom GitHub Wiki

ULN Series 50V 500 mA Integral Suppression Diode Eight Darlington Array - DIP-18

https://www.futureelectronics.com/p/semiconductors--analog--drivers--motor-drivers/uln2803a-stmicroelectronics-6893226