simple balancing analog robot
Loading...
Uploader Comments (roboanalogtom)
Top Comments
-
God! I knew the 555 timer was usefull but this is by far the coolest project iv'e seen!
Hail to you!!!
2 years ago 5
-
Great job, that really took some creative thinking. I love seeing analog circuits put together instead of slapping a microcontroller on everything.
3 years ago 4
All Comments (11)
-
so cool.
it seems that analog is really useful. Not all workable things are digital.
-
Very nice. There is so much I don't know about this stuff. I didn't know you could do this with photocells. I'd love to get the article/info on how to build this if you still have it. Nice job.
-
hey, very cool robot. do you have the schematic or any documentation?
- 0:53
Two Wheel Balancing Robotby PlaniTechnic50,387 views
- 1:33
Unibot - 3D stabilizationby jvpommeren272,342 views
- 0:47
Self-balancing Robotby arnoldwu19,126 views
- 2:25
Inverted Pendulum Balancing Robot Montageby justinm100,121 views
- 0:56
Insect robotsby LeonelMoura10,511 views
- 0:19
Cool Robot Snakeby PapaJames2,624,619 views
- 0:24
555 timer as a servo controllerby Antipico51,648 views
- 0:32
Mechanical hand - finger control - part 2by vegham210,273 views
- 0:20
The simplest motor in the worldby danky785,880,305 views
- 3:39
Simple AI kit robot.by Evmoius73,974 views
- 5:06
Analog Robots Part 2by roboanalogtom3,586 views
- 0:30
8 transistor 2 axis helicopter flight controlby roboanalogtom48,160 views
- 0:28
Small cheap simple robot from scratchby Morkeste104,954 views
- 1:49
Speed Control of Servo Controllerby arnoldwu16,949 views
- 1:49
Balancing Robot Can Take a Kickingby sunilrkarkera62,286 views
- 0:54
simple robot - easy to makeby steeverthebest13,301 views
- 2:15
RC two wheel balance robotby white12039,219 views
- 0:30
Self Balancing Robotby msx8019,661 views
- 1:36
How to make your own robot!by CoyoteEngineering330,693 views
Cool stuff! Are you using op-amps to calculate the derivative?
markthemech 3 years ago
Nope! The derivative was calculated using a single capacitor. The 555 timer controls the pulses needed for the servo. The photocells are the sensor input. Between the photocells and the 555 timer input is a resistor and capacitor in parallel (15K ohm, .1 or .2 uF) that is used for proportional (resistor) control and derivative (capacitor) control.
A wide range of PD controllers can be made with just a simple resistor and capacitor at the input to a PWM.
roboanalogtom 3 years ago
Just curious, what did you use to sense the inclination?
felineboy 4 years ago
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.
roboanalogtom 4 years ago
D'oh, the email is:
tom ((at) newschooltech ((dot) com
roboanalogtom 5 years ago
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.
roboanalogtom 5 years ago