ServoNOW Arduino Shield
Connections are created between the i/o pins of an Arduino board and the i/o pins on the ServoNOW through a DB25 connector. The 24VDC supply from the ServoNOW powers an LED and provides ~5VDC to A0 on the Arduino, to easily tell if the ServoNOW is powered on and operating correctly. A1 and AREF on the Arduino are connected to the analog output of the ServoNOW. The 24VDC supply and the analog input to the ServoNOW are accessible through J1 and J2. Physical space constraints limit the Arduino board to the UNO or an equivalent size.