Drawbot hardware overview. Features a 15 position program selector, infrared object detector and rangefinder. Drop-off detectors, sterio light detectors to aid in navigation, Stepper motor controller, dynamic step ramping with accel/deccel. electrical noise filtering, LCD remote feedback with full on-board documentation. Built-in charger circuit, independent power regulators for processor/sensors/steppers. 3 button inputs, 3 LED status outputs (used for calibrating the CDS cells). Servo operated center drawing stylus can raise, lower, park, -even use different pressure for line weight.
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