Arduino Uno shield

An Arduino (Uno) shield for two stepper-motors, one Servo motor, and an alternative output. For the SphereBot, another Egg-Bot derivative.
This SphereBot is built with a retired Sparkfun Arduino Ethernet Pro board and the steppermotors from a 2009 Makerbot. Firmware and host sw (fork) from thunderbug1.

Download the Eagle schematics and board (100 KB).

Shield pin usage:

Signal Pin
X-EN 11
X-STEP 12
X-DIR 13
Y-EN 5
Y-STEP 6
Y-DIR 7
SERVO 10
ALT 2 (FET switches 5V on/off)

SphereBot shield top
SphereBot