User manual

1
Content
1 Preparations ................................................................................ 3
2 Simple LED lamp ........................................................................ 4
3 More colors: red and green ........................................................ 7
4 Standby light for the night ...........................................................8
5 Adjustable brightness ............................................................... 10
6 Amplify current ..........................................................................13
7 An alarm system .........................................................................16
8 Off at the push of a button.........................................................18
9 Keep on the glow .......................................................................19
10 Red and green in sync .............................................................21
11 Three LEDs with turn-off delay ................................................23
12 Flashlight trio in sync .............................................................. 25
13 Touch switch .............................................................................26
14 LED light sensor ......................................................................28
15 Extra switch for dark nights .....................................................30
16 Transistor flip-flop: red or green ............................................. 32
17 Reaction games ........................................................................34
18 Four-color switch .....................................................................36
19 Simple RS flip-flop ...................................................................38
20 Temperature sensor ................................................................. 40
21 Slow flasher ..............................................................................41
22 Transistor flasher in three colors ............................................. 43