the-rebel-agent:
Welcome and you are clear to go. Just be careful about the micro SD card you are using. Got a lot of pain in the b... figuring out why mine did not work from the start.
I am doing a gift box which plays four different audio phrases(files) depending on the child how close he is to the box. I am using 4pin ultrasonic with Arduino Nano and WTV020..Can you pleae help me with the code