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Analog control unit for mobile robots
Soldering kit for experimentation
For Fischertechnik Mini Bots and
other Robots (till 80 mA, for higher
output-currents please contact us)
Most diverse functions
Requires no programming
Patented sensor technology
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Summary of Contents for Variobot tinobo-Steuereinheit
- Page 1 Analog control unit for mobile robots Soldering kit for experimentation For Fischertechnik Mini Bots and other Robots (till 80 mA, for higher output-currents please contact us) Most diverse functions Requires no programming Patented sensor technology...
- Page 2 Summary We are pleased that you have decided for this The unit is capable of a lot: high-quality soldering kit for mobile robots. It Surprising driving maneuvers through opens up a new and exciting access to analog sensitive reaction to light and shadow amplifier circuits.
- Page 3 Components overview 1 red control board 2 dual operational amplifiers (IC1,IC2) 12 sockets 2-pin 1 vertical switch (S2) 2 potentiometers 10 MΩ (P1, P2) 2 sockets 3-pin 5 photo transistors (T1, T2, T3, T4, T5) 10 resistance bridges 0 Ω 4 IC-sockets 6-pin 6 IR-LEDs (IR1R - IR3R, IR1L - IR3L) 1 resistor 4.7 Ω...
- Page 5 Note: IC1 includes the two operational amplifiers OP1R and OP1L (triangular circuit symbols). IC2 includes OP2R and OP2L. In this application each motor is controlled by two operational amplifiers. 4. Insert two 3-pin and two 2-pin sockets at the indicated locations on the back of the board and solder them on the top.
- Page 6 Preparation and first commissioning 1. Build your Fischertechnik bot e.g. as shown in Adapt your Mini Bot in order to fix the control the picture or use a different robot platform. unit. Connect the plugs for the motors. 2. Shorten the pins of the remaining two photo Finally plug these sockets into the 3-pin sockets transistors T2 and T4 (red marking) according of the control board ensuring that the contacts...
- Page 7 7. The test circuit shown in the illustration al- lows you to adjust the maximum speed of the motors via a series resistor if necessary. For this adjustment, the operational amplifi- ers OP1R and OP1L are set to maximum gain. Use the 14-pin sockets to connect the [+] and [–] inputs of the OPs according to the illustra- tion, each via a 1 MΩ...
- Page 8 For more information about the functionality of with the voltage at the [+] input. the control unit please also read the manual of the tibo robot kit at: variobot.com/downloads The supply voltage in the diagram is U = 9 V.
- Page 9 How to build a light follower This circuit enables your robot to navigate au- 3. Turn on your robot and observe how it be- tonomously with the help of the three sensors haves. Adjust the relative incidence of light T1, T3, and T5. The two sensor signals InR and on the sensors with some fischertechnik parts InL control the motors via OP1R or OP1L.
- Page 10 How to build a line follower With this circuit, you can let your robot follow a 6. Use P2 to adjust the speed of your robot. dark or bright line. The serially wired sensors T2 7. Test how the robot behaves when confront- and T4 supply the voltage signal InM, which ed with lines of different widths, intersec- controls the motors via OP1R and OP1L.
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