Velleman projects K3502 Assembly instructions - Manual (Page 9)

9
Connect the points GND, +V, RW, DIS, S1 and S2 of the main PCB to the corresponding points on the
receiver PCB.
Make sure that the distance between the receiver print and the base print is approx. 50cm.
Adjust the trimmer RV1 at the middle position RV1.
Connect a 12VDC power supply (or a battery) between the points GND (-) and +.
If you hold your hand or a sheet of paper in front of the sensors, you should hear the sound of the buzzer
when the distance from the object to the sensors decreases to about 70cm.
3. TEST
Test
Mount the receiver print in a synthetic housing, which can be done in two different ways (depending on
where it is built in on the car):
A) With the sensors in upright position (fig. 1):
Mount the four terminals for SENS1 and SENS2
Solder the sensors to the terminals so that they are in a traverse-position regarding the print.
Realise the bores in the housing as shown on the drawing (fig. 4).
4. INSTALLATION IN THE CAR