Homemade Mp3 Player Circuit Diagram. Connect the led light to the circuit for getting the signal about its present condition. Mp3 player circuit diagram.
On page 5 you ll find typical applications with several circuit diagrams. Since the mp3 player module accepts only 3 3 v or 5v so we have used voltage regulator here to regulate the battery s 9 v to 3 3 v. The only difference is removal of push buttons and inclusion of tsop 1738 ir receiver.
Connect the led light to the circuit for getting the signal about its present condition.
Resistor r4 r8 takes the ampliļ¬ed mp3 signal to the output socket k2 k3. Connect the circuit diagram as in the one marked with amplifier with gain 20 and you get 20 fold the signal. The received signal from ir remote is fed to a0 pin of arduino. A switch to on off is present too on or off the module 0 1 uf capacitor is used here for noise filtration and is connected across vcc and gnd.
