This is a single chip balancing robot based off of a 555 timer and a servo modified for continuous roation. It uses 2 photo resistors for the sensor and has a simple proportional/derivative input.
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simple balancing analog robot
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8 responses to “simple balancing analog robot”
Cool stuff! Are you …
Cool stuff! Are you using op-amps to calculate the derivative?hey, very cool …
hey, very cool robot. do you have the schematic or any documentation?Cheap photocells …
Cheap photocells were used. There’s a light above the robot and that’s the only reference. The photocells provide both proportional and derivative (through a capacitor) information. You must use derivative information to make the system stable.Just curious, what …
Just curious, what did you use to sense the inclination?D’oh, the email is: …
D’oh, the email is:tom ((at) newschooltech ((dot) com
Yes, only a 555 …
Yes, only a 555 timer was used. It’s set up as a pulse generator and those pulses control the actions of a servo modified for continuous rotation. A modified servo is a full proportional bi-directional device.The 555 timer is used as a crude but highly functinal PID controller (only PD was used in this robot). You can email me at:
tom ((at) newschooltch ((dot) com
and I’ll email you an article on how to build this robot with schematics.
actually a 555 …
actually a 555 makes sense if its set to switch something back and forth right ? very coolthis is really …
this is really impressive, do you have anymore details?? you only ussed the 555??
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