Advertisement
11 Exciting projects which you can actually use.
Projects featured in this box:
LED with push button
*
A transistor as cuurent amplifier
Astable multivibrator
**
Simple burglar alarm with LED indication and sound
Light detector
**
.....................................................................
Polarity tester
*
......................................................................................................
Start-Stop circuit
***
.............................................................................
Timer circuit
***
...........................................................................
Light switch
***
......................................................................
Water alarm
**
.....................................................................................
Running light with 3 LEDs
Difficulty level
*
easy
**
normal
***
hard
www.vellemanprojects.com
..............................................................
*
...............................................................
.....................................................................................
***
...................................................
Light a LED when a pushbutton is pressed
Light a LED using a transistor
**
Example of a simple burglar alarm
........................
Switch on a LED when there is sufficient light
Control a LED using 2 pushbuttons
Make a LED switch off after a certain time
Make a LED switch on when it becomes dark
Make a liquid level trigger an alarm
Make 3 LEDs light up shortly in succession
: see "velleman EDU01"
Let LEDs flash alternately
Check battery polarity
(pag.10)
(pag.12)
(pag.14)
(pag.16)
(pag.18)
(pag.20)
(pag.22)
(pag.24)
(pag.26)
(pag.28)
(pag.30)
Pag. 3
Advertisement
