Velleman KSR1 Specification

Brand: Velleman

Model: KSR1

Category: Toys

Type: Specification

Velleman KSR1 is a voice-controlled robot car that changes directions when its microphone detects noise or when it bumps into an object. It's powered by 2 AA batteries and features adjustable microphone sensitivity, allowing you to customize its responsiveness to sounds. The KSR1 is a fun and interactive way to learn about basic robotics and electronics, making it a great project for hobbyists and beginners alike.

KSR1 VELLEMAN 1

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 detector. 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 2

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)

4. Assembly

a) PCB Assembly

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

below :

Part ID Descr. Colour Code Quantity Part ID Descr. Colour Code Quantity

R10/11

15Ω

brown 2 R6 22K red 1

R8/9

220

Ω

red 2 R4 47K yellow 1

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 below :

Part ID Description Quant.

C1 223 ceramic capacitor 1

C2 47uf electrolytic capacitor 1

C3 1uf electrolytic capacitor 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

Fig. 2

KSR1 VELLEMAN 3

MIC microphone 1

SW slide switch 1

M+

M-

Ø1.3mm pin

b) Gearbox Assembly

Note that the protruding edge should be pointed towards 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 4

c) Mounting the Gearbox & the Rear Wheels

d) Mounting the Front Wheel Bracket

e) Assembling the Battery Holder & PCB

Fig. 5

Fig. 6

Fig. 7

KSR1 VELLEMAN 5

f) Assembling the Front Wheel

g) Wiring

5. Operation

Put the switch in the “ON”-position. Place the device on the floor and verify whether 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 all components on the PCB are in the right position. Pay particular attention to the 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)

Fig. 8

Fig. 9

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Velleman KSR1 Specification

Brand: Velleman

Model: KSR1

Category: Toys

Type: Specification

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