The Beeper
A little device that constantly beeps.
Explenation
If you turn the pointiometer (Variable Resistor) the beeping will go faster/slower.
Materials
1. 555 timer chip
2. 220r resistor
3. 50k variable resistor
4. 36uf capacitor
5. 5v piezo beeper
6. breadboard
2. 220r resistor
3. 50k variable resistor
4. 36uf capacitor
5. 5v piezo beeper
6. breadboard
Hook Up
Now you just build the circuit from the (messy) diagram.
Finish
Now just power it and it should start beeping.