Simultaneous Dual Motor Control
https://maker.pro/breadboard/projects/simultaneous-dual-motor-control
This project describes the HVPAK configured as a controller for two brushed DC motors
with independent control.
Brushed DC Motor Programmable Speed Regulator
https://maker.pro/custom/projects/brushed-dc-motor-programmable-speed-regulator
This article explains how to design, build a low noise high performance low cost brushed DC motor programable speed regulator. The regulator is immune to the temperature, voltage, and motor load variation. Also, this circuit does not care about the motor coil resistance which allows using different motors in one application without any adjustments.