1. Wi-Fi configurable timer has two outputs so it is possible to create a polarity reversing circuit with the help of additional automotive relays. The following circuit is designed to drive a motor forward when the trigger is applied for a period of t1 and then reverse the direction for a period of t2 when the trigger is removed. Two relays are used to switch the polarity. The polarity is controlled by the positive (Yellow wire) output. The sink (Orange wire) is activating the motors.
Minimum requirement: Wi-Fi timer with two outputs (HW5)
Available adjustments: t1, t2, trigger. Other parameters have no effect on operation.