random number by led one digit

**broken link removed**

This is a circuit diagram showing the random nature of LED 7 segment. In the diagram circuit IC1 – LM555, R1, R2 and C2 on the circuit a sensitive multi-Stable Brett Foster (Astable. multivibrator circuit) function generator signal square (Square Wave) and send the pin 3 of IC1. It can change the frequency by VR1. and often to the leg 14 of IC2, it acts as a circuit of dozens, the output of IC2- SN7490 sent to the input pin of the IC3 – SN7447. The IC3 serves to decode (code BCD) to drive the 7-Segment a common anode, in order to display the numbers 0 through 9............**broken link removed**

And your point is... ??

The image is unreadable.

random nature of LED 7 segment

Click to expand...

7 segment LED displays are not random by nature.

Attached is the circuit in a more read friendly look. The idea is you press and hold a button for the 555 clock that is running faster than you can see on the display. When the button is released the clock stops at some random number.

To the OP, if you plan to continue to post these circuits, please use images that can be easily read. Even the image on your site link is too small so someone who is curious needs to follow a trail just to get to a readable image.

Ron