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Push button
A push button will conduct current
when pushed and interrupt the
current when released.
(Velleman part# D6)
Buzzer
pag. 6
The supplied button
has 4 connections, but
only 2 are used.
2 are interconnected.
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.
Inside connection
(Velleman part# SV3)
www.vellemanprojects.com
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