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Deal of the date
Elegant offer for single digit seven segment display using 74LS47. Purchase this module at 20% low cost price for the next seven days. Limited numbers available. Buy it soon.
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Easy install Single Digit Seven Segment display boards with user friendly interface.
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Arduino MP3 player using VS1003, SD card module and Arduino UNO
Circuit is done as shown in the diagram. Volume can be controlled using 10K POT.
Program
Copy and paste the program to your Arduino libraries folder. Compile and upload the example code to your Arduino board. A file named “2.mp3” will be played in my code. A file named “2.mp3” should be there in your SD card. Otherwise, it will give an error.
Communication between ESP-12F IOT module and SD card module using Arduino
References :
Refer http://www.haberocean.com/2019/05/esp-12f-iot-module-programmer-circuit/ to get the programming basics.
Upload the following program to ESP-12F IOT module.
/*
Listfiles
This example shows how print out the files in a
directory on a SD card
The circuit:
SD card attached to SPI bus as follows:
** MOSI – pin 11
** MISO – pin 12
** CLK – pin 13
** CS – pin 4
created Nov 2010
by David A.
Working of low noise electret MIC pre-amplifier module
Connect the output to a Digital Storage Oscilloscope to see the variations in output with the sound signals on electret MIC.
