If you want to play some songs on your phone but don't have a speaker and have some extra breadboard supplies, you've come to the right place. If you do have a speaker but just want a cool little project to take on, you've come to the right place too!
Step 1: Step 1: Collect Supplies
The list below shows all of the supplies you will need to get started with this project:
- 1x 10 Ohm Resistor
- 1x 10 K Ohm Audio Taper (A10K) potentiometer
- 1x 10 Micro-Farad electrolytic capacitor
- 2x 100 Micro-Farad electrolytic capacitor
- 1x 104 Nano-Farad (473) ceramic capacitor
- 1x LM386 Audio Amplifier IC in DIP8 package; can be LM386 N-1 or greater
- 1x 8 Ohm speaker
- 1x 9 volt battery clip with wires
- 1x 3.5mm Jack with wires
- Some solid core wires
Step 2: Step 2: Connecting the Main Component
Alright now that we have all of our supplies we can start the project. make sure your supplies are all sorted out and out of the way when you aren't using them and also make sure you're work space is cleared as well to make things easier. To start off, were gonna take the LM386 Audio Amplifier, and a Wire. Place the Audio Amplifier in the middle two rows of the breadboard as shown in the picture. After the amplifier is in place you need to take your wire and use it to connect the two negative rails on the top and bottom of the breadboard.
Step 3: Step 3: Connecting the First Capacitor
the next step in the project is to connect the 100 Micro-Farad Capacitor to pin 4 on each side. But before we do that were gonna need to connect two more wires, one vertical and one horizontal in the pins shown. Now that those wires are in, we can connect the 10 micro-Farad Capacitor.
Step 4: Step 4: Connecting the Next Capacitors
For this step we are going to need the 104 Nano-Farad Ceramic Capacitor and the 10 Micro-Farad Capacitor. Make sure that one end of the Capacitor is connected right in front of pin 1 on the amplifier. For the Resistor, were going to need to plug it in to the positive and negative rails at the bottom of the breadboard.
Step 5: Step 5: Connecting the Resistors and Battery Clip With Wires
For This step we're gonna need the 10 Ohm Resistor to be connected to the bottom negative rail on the breadboard and also to the same row as the wire next to it like it's shown in the picture. After that we need to connect the 9 Volt Battery clip Wires to the bottom positive and negative rails on the breadboard, make sure the black wire is connected to the negative rail and the red wire is connected to the positive rail.
Step 6: Step 6: Connecting the Final Capacitor and Potentiometer
For the final capacitor we need the second 100 Micro-Farad Capacitor to connect to the first pin of the amplifier and the other end to connect into the pin shown. Next we need to connect the 10 K Ohm Potentiometer. There are three wires here so be careful that all three of them are plugged in to the right spot on the breadboard.
Step 7: Step 7: Connecting the Speaker and 3.5 Mm Jack
To connect the speaker, the negative wire (black) has to be connected to the bottom negative rail on the breadboard and the positive wire (red) needs to be connected to the same column as the100 Micro-Farad Capacitor. To connect the 3.5 mm Jack, the negative wire is to be connected into the bottom negative rail on the breadboard and the positive wire is to be connected to the spot shown under one of the potentiometer wires.
Step 8: Step 8: the Final Step
For the final step, all we're going to need to do is connect a 9 Volt battery into the battery wires and then hook up a phone or any other electronic device through the 3.5 mm Jack and you're good to go! Happy Listening!