This board is specifically made as a small motor bi-directional controller,
to control blinds, drapes, gates and electric door openers
using Cayenne IoT WiFi or MQTT remote controls.
There are (2) switch (dry contact) inputs, GPIO 4 & 5
Intended for open/close or up/down limit switches.
1 FORWARD/REVERSE relay controlled by GPIO 2
reverses polarity on outputs M1 and M2.
Motor Power On/OFF via GPIO 12
drives a TIP120 transitor powering DC motors
up to 36 volts or up to 3 Amps.
Input voltage/Motor voltage from +8 to +32V