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Betty2
built by Jim Fong
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| Target Environment | Locomotion Method |
| Indoors | 2 Wheels |
| Sensors / Input Devices | Actuators / Output Devices |
| Vector VX2 compass IR line following sensors CDS light sensors microphones wheel speed sensors Sharp IR detector I/O Menu buttons Power monitor |
Modified R/C servos IR transmitters for sensors IR data transmitter 16x2 line LCD data display Speaker |
| Control Method | Power Source |
| Autonomous | Battery |
| CPU Type | Operating System |
| Motorola HC11 | None |
| Programming Lanuage | Weight |
| N/A | 1 lbs |
| Time to build | Cost to build |
| N/A | N/A |
| URL for more information | |
| http://www.hooked.net/~jfong/ | |
| Comments | |
| Betty is the first prototype of our mobile robot. It has a variety of sensors and utilizes our Finger Board 68HC11 embedded processor board for control. The robot is fairly small, it stands 4.25" high by 4" in width. The construction is based on three 4" diameter boards that are stacked on
top of each other. The first layer holds the modified R/C servo drive units and nicad batteries. The internal servo electronics were removed and the motors are driven by a L293 H-switch chip. Future prototypes may use small gear-head motors for greater speed. Most of the electronics are contained on the middle printed circuit board. The processor board is located in the center with the various external sensors surrounding it. The top layer holds the LCD display and Vector compass unit. The sonar driver circuitry is also located on the top layer, yet to be implemented. Our next prototype will try to integrate more of the electronic circuitry on a single board and may have possible enhancements such as wireless data transmitter, wireless video transmitter, sonar, PIR detector and smart charging battery system. Other Hi-resolution images of Betty and technical details can be found on our web site. Technical Specifications
Finger Board - 68HC11 based controller |
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