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In this project you make a simple LED ladder network that turns on the LED bar graph when the button is hit with a small rubber hammer.
What you need:
* 7 LEDs
* Six 100 ohm resistors
* Six 1kohm resistors
* 470u/220u capacitor
* matrix board
* wires
* fuse wire
* push button
The theory is easy to understand. The capacitor charges up the LEDs slowly. One by one they turn on. The stronger the hit the longer the button will be pressed and the more LEDs will turn on.
Accuracy in resistor values is not necessary. You can use values close to 100 ohms/1 kohms.
What you need:
* 7 LEDs
* Six 100 ohm resistors
* Six 1kohm resistors
* 470u/220u capacitor
* matrix board
* wires
* fuse wire
* push button
The theory is easy to understand. The capacitor charges up the LEDs slowly. One by one they turn on. The stronger the hit the longer the button will be pressed and the more LEDs will turn on.
Accuracy in resistor values is not necessary. You can use values close to 100 ohms/1 kohms.
Mark