FUTURE KIT 1108 Quick Start Manual

FUTURE KIT
R
FUTURE KIT
GEAR TACON LINE FOLLOW ROBOT
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CODE 1108
The FK1108 TACON will follow a 1 cm wide black line drawn on a
white background. The TACON's Infrared sensors detect the black/white
boundary and adjust the drive motors to restore the robot's movement to
the line's centre.

Technical data

- Power supply : 2 AA batteries (not included).
- Electric current consumption : 150mA.
- Infrared detecting sensitivity : controllable.
- IC board dimension : 2.18 in x 2.63 in.

(1) ROBOT CONTROL CIRCUIT

How does it work

The circuit is composed of 2 major parts, light detecting and light
flashing, as shown in Fig. 1.
The light detecting part is composed of 2 alike circuits that will work
in the same manner. Each circuit will start working when the photo
received infrared light from LED INF, causing voltage being passed
through. The more reflected light will lessen the internal resistance and
give bigger passing through voltage. Less reflected light will enlarge the
internal resistance and give less passing through voltage.
When there is voltage being passed through the photo, it will cause
TR6 and TR7 to work and force motor M1 to rotate. Moreover, this
voltage will feed the light flashing part to work as well. Therefore, if any
photo receives more light volume, the robot will move to the direction of
that photo position. The VR1 and VR2 will work as a light detecting
sensitivity controller of each photo.
When the light flashing part received voltage, TR5 will start working
and cause the light flashing set to work. TR3 and TR4 will be assembled
as a multivibrator circuit and work alternatively. When TR3 works, it
will light up LED3. And when TR4 works, LED2 will be lit up. The
flashing speed will be depended upon R7, R8, C1 and C2. R6 and R9 will
reduce the current for LED2 and LED3. For LED1 will act as LED
power and control the voltage of VR3 to be approximately 1.7 volts.

Circuit Assembly

There are 2 PCB is in this kit. The FK1105 is a controller circuit
while the rest is a robot body i.e. chassic, gear motor and wheels plus a
battery comportment.
The FK1105 board assembly of components is shown in Fig. 2. For
good looking and easy assembly, the shorter components should be first
installed - starting with low resistant components and then the higher.
An important thing is that diodes, electrolyte capacitors, and transistors
shall be carefully assembled before mounting them onto their right
anode/cathode of the IC board otherwise it might cause damage to the
components or the circuit. Configuration of the anode and the cathode is
shown in Fig 3. Use the soldering iron/gun not exceeding 40 watts and the
solder of tin-lead 60:40 with flux within. Recheck the correctness of
installation after soldering. In case of wrong position, just use lead
absorber or lead extractor wire to avoid probable damage to the IC.
The Body set is to be assembled as shown in the next page.

Testing

When the two circuit boards have been completely assembled, insert
two AA batteries into the battery holder. Then adjust VR1, VR2 and
VR3 to the middle point and slide switch SW to "on" position.
Lay down the assembled robot on the paper with black line. But if the
robot is running out the black line, adjust VR1 to the left side a little bit
and test again. In case of the robot is running out the black line to left
side, adjust VR2 to the right side a little bit until the robot runs follow
the line. But if the robot is running out the black line to right side, adjust
VR3 to right side a little bit.
Figure 1. TACON Line Follow Robot Circuit
Figure 2.
Circuit Assembling
FK1105
NO.1
Figure 3. Installing the Components
+
Watch the polarity
VERTICAL
C
1 3 B B
E
2
HORIZONTAL
A K
A
http://www.futurekit.com
6
INF
INF
8 7 2 1
A
LED LED
3 2
K
5
A
K
+
4 + 3
VR2 VR1
VR3
ON SW OFF
LED
+ 1
A
K
Figure 4. IDE Port
Assembling To
The FK1105 Circuit Board.
IDE port
!
Press the pin of IDE port
to be level with the black plastic.
E
C
Install IDE port to PC-board
and soldering.