Robotic Wrist with speaker (at work #2)

Large-scale prototype for a mini robotic arm designed to assist me in fly brain dissections. Controlled by SONY TV remote. Can move vertically and rotate. Piezo speaker alerts when ranges of degrees that servos can "comfortably" achieve are exceeded.

The first one (in the code, it is declared servo) is the wrist rotator. has 2 control horns. The second one (declared servoV) allows the wrist to move vertically. has 1 control horn. servo is attached to servoV's control horn. a mock hand is attached to servo's 2 control horns. i attached servoV on a stand. Piezo speaker attached to breadboard