Electronic Dice NE555 LED Module CD4017 DIY Kit 5mm Red LED 4.5-5V ICSK057A Electronic Module Fun Diy Electronic
$181.00
Price: 1,81 - 1,81
1. Kit parameters:
Supply voltage: 4.5-5V
Dimensions: 74 * 35mm
2. Function play:
When a power-up, 7 LED will randomly display a number of points, players press the switch S1,7 all lit LED only after about 7 seconds LED light starts blinking, until finally showed stable points. Throughout the end of the first "crap" process.
circuit mainly by the pulse generator and a decade counter circuit. Pulse generator and external elements by NE555 multivibrator, when you press the button S1 when Q1 turns on, the output pulse NE555 3 feet, then five turns the output CD4017 output high, resistors and transistors by different combination, can drive seven LED light to indicate the number of points 1-6 points.
4.Circuit diagram:
5.Component list:
|
serial number |
Component |
Value |
Label |
serial number |
Component |
Value |
Label |
|
01 |
resistance |
470R |
R8 R9 R10 |
11 |
audion |
S8050 |
Q2 Q4 Q5 |
|
02 |
1K |
R7 |
12 |
S8550 |
Q1 Q3 |
||
|
03 |
10K |
R3–R6 R12–R16 |
13 |
IC socket |
8PIN |
U1 |
|
|
04 |
3.3M |
R2 |
14 |
16PIN |
U2 |
||
|
05 |
4.7M |
R11 |
15 |
IC |
NE555 |
U1 |
|
|
06 |
10M |
R1 |
16 |
CD4017 |
U2 |
||
|
07 |
capacitance |
104P |
C2 |
17 |
Terminal |
XH2.54 2P |
J1 |
|
08 |
1uF/50V |
C1 |
18 |
Power line |
XH 2P |
1 |
|
|
09 |
LED |
Ф5RED |
D1–D7 |
19 |
PCB |
FR-4 |
74*35mm |
|
10 |
touch touch switch |
6*6*5 |
S1 |
20 |
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