Step 3: Schematic
As you can see right away, the hearth of this project is the LM 555 timer chip.
( the 3rd drawing shows the functions of the 555 timer chip pins)
Our Connections are:
-Pin 1 of the chip is connected to pin 6 via the 22uF capacitor. Pin one is also the base ( 0 V supply)
-Pin 2 is connected to pin 6
-Pin 7 is connected to pin 6 via the 250K Potentiometer
-Pin 4 is connected to pin 8
-Pin 4 is also connected to pin 7 via the 1K Resistor
-The speaker is connected to pin 3 via the 22uF capacitor and to pin 1
Later in the Instructables we will go into details and trough all the remaining connections.
Now, lets start making our Metronome !