built by Dieter Schenk

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Target Environment Locomotion Method
Indoors 3 Wheels
Sensors / Input Devices Actuators / Output Devices
IR receiver stepper motors
drawing pen
Control Method Power Source
Autonomous Battery
CPU Type Operating System
Motorola HC11 N/A
Programming Lanuage Weight
Forth N/A
Time to build Cost to build
URL for more information
KRITZLER has a Motorola HC11F1 MPU with 32kB Battery-RAM for controll. 2 steppermotors for moving with more precision and 1 little micromotor for pen moving up/down, 1 IR-receiver for accepting commands from a universal IR-remotecontrol. Software is my personalized edition of a good old FIG-FORTH, extended with autostart capability and the Inter-rupt controlled IR-receiver routine. I buildt KRITZLER for my children to show the easy way of drawing figures with rotations and moving like the LOGO-Turtle. Once downloaded the FORTH programm, the robot takes comands from the IR-remote like "-30 R" (30 deg. rotate left)"P" or "-P"(pen up/down). And best of all, i think, the programming of moving sequences as a macro-command (this is FORTH...). Only one problem is the powercon-sumption of the steppermotors, but nobody is perfect. Email:

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