Velleman EDU01 User Manual download pdf (Page 6)

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pag. 6

Buzzer

A buzzer produce a signalling sound to alert

for a dangerous situation, timer confirmation,

a button is pressed, ... The pitch of the buzzer

can't be changed because the frequency of

the oscillator is fixed.

(Velleman part# SV3)

Push button

A push button will conduct current

when pushed and interrupt the

current when released.

(Velleman part# D6)

Inside connection

The supplied button

has 4 connections, but

only 2 are used.

2 are interconnected.

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