Velleman KSR1 User Manual [en, de, es, fr]

KSR1 – ROBOT CAR

1. Introduction & Characteristics

Thank you for buying the KSR1 ! Read this manual carefully before bringing the device into use.
The KSR1 is a voice-controlled robot car that uses a microphone as a det ector. The car changes directions when the
sensor detects noise or when the car hits an object.
The KSR1 requires 2 x AA-battery of 1.5V (not included).

2. Electronic Parts List

3. Mechanical Parts List

Part n° Quant. Description Part n° Quant. Description

1 1 gearbox 15 1 spring
2 1 motor DC3V 16 1 front wheel bracket
3 1 metal shaft (2 x 40mm) 17 2 nylon nut
4 1 metal shaft (3 x 90mm) 18 1 round post (Ø3 x 2mm)
5 1 pinion gear 10T (white) 19 2 washer (2.6 x 6 x 0.5mm)
6 1 face gear 36T/14T (white) 20 2 washer (3.2 x 10 x 0.5mm)
7 1 gear 36T/ 0T (white) 21 4 screw (2 x 10mm)
8 1 gear 36T/14T (red) 22 6 screw (3 x 5mm)

Fig. 1

KSR1 VELLEMAN 1

9 1 gear 36T/14T (green) 23 3 screw (3 x 18mm)
10 2 nylon pad 24 1 screw (3 x 20mm)
11 2 rubber ring (Ø30 x 3mm) 25 4 M2 nut
12 1 rubber ring (Ø15 x 2.5mm) 26 4 M3 nut
13 1 front wheel (Ø20mm) 27 3 hex post (M3 x 10mm)
14 2 rear wheel (Ø32mm) 28 1 round post (Ø3 x 6mm)

Fig. 2

4. Assembly
a) PCB Assembl y

Start the assembly by mounting the resistors. The names of all resistors are printed on t he PCB. Consult the table
below :

Part ID Descr. Colour Code Quantity Part ID Descr. Colour Code Quantity
R10/11

R8/9

R1 1K brown 1 R13 100K brown 1
R2 2.2K red 1 R7 1M brown 1

R5/12 3.3K orange 2 R3 2.7M red 1

Mount the capacitors, transistors, VR, mic, slide switch and pins next. Consult the table bel ow :

15Ω

220Ω

Part ID Description Quant.

C1 223 ceramic capacitor 1
C2 47uf electrolytic capacitor 1

C3 1uf elec trolyt ic capac i t o r 1
TR4/8 transistor 8050 2
TR3/7 transistor 8550 2

TR1/2/5/6/9 transistor C945 or (1815) 5

VR VR 100K 1

brown 2 R6 22K red 1

red 2 R4 47K yellow 1

KSR1 VELLEMAN 2

MIC microphone 1

SW slide switch 1

M+

M-

Ø1.3mm pin

4

b) Gearbox Assembly

Note that the protruding edge should be pointed toward s the metal case. The yellow wire is the positive (+) pole of
the motor, the green wire is the negative pole (-).

Fig. 3

Fig. 4

KSR1 VELLEMAN 3

c) Mounting the Gearbox & the Rear Wheels

Fig. 5

d) Mounting the Front Wheel Bracket

e) Assembling the Battery Holder & PCB

Fig. 7

Fig. 6

KSR1 VELLEMAN 4

f) Assembling the Fr ont Wheel

Fig. 8

g) Wiring

Fig. 9

5. Operation

Put the switch in the “ON”-position. Place t he device on the fl oor and verify whethe r it moves smoothly. The KSR1
should back up to the left when you clap your hands. The KSR1 will subsequently move forward in a straight line
again. Adjust “VR” with a screwdriver to change the microphone’s sensitivity. Turn the screwdriver to the right for
increased sensitivity and vice versa.

6. Troubleshooting

1. Make sure al l components on the PCB are in the right position. Pay particular attention to t he polarity of the
microphone, the transistors and capacitors.

2. Check the wiring.

3. Adjust the nylon nut (n°17) on the front wheel if the car keeps veering to the left.

4. The noise from the gearbox may prevent the microphone from receiving the signal. Grease face gear 36T/14T
(white) and the metal shaft (n°3) to reduce the noise.

5. Do not grease metal shaft (n°4) and gears 36T/0T (white) and 36T/14T (red)

KSR1 VELLEMAN 5