TechRob Crew

This is a simple project for mute using ESP-NOW. Wirelessly you can send commands to the speaker using TCRT5000(IR sensor). Each finger at the transmission side can have a different command at the receiver side. The micro SD card inside the DF-mini player has to be first inserted in the laptop using SD card reader where you can save different files like 0001, 0002 so on and so forth. Now these files are going to be the one played on the speaker once commanded. Components Required: 2 x Esp32 1 x DF-mini player 1 x micro SD card 1 x SD card reader 1 x 5V Speaker 4 x TCRT5000 18 x jumper wires Transmitter Side: Receiver side: Video: Email: easymathsforyou3@gmail.com YouTube channel: https://www.youtube.com/watch?v=plUAwFPqPhM&t=241s

Components Required: 1x Arduino 1x Ultrasonic sensor 1x Buzzer 1x Jumper wires Application: https://www.arduino.cc/ Code: int trigPin = 6; int echoPin = 5; int buzzPin = 2; void setup() {   Serial.begin(9600);     pinMode(buzzPin, OUTPUT);    pinMode(trigPin, OUTPUT);   pinMode(echoPin, INPUT);   // put your setup code here, to run once: } void loop() {   long duration, distance;   digitalWrite(trigPin,HIGH);   delayMicroseconds(1000);   digitalWrite(trigPin, LOW);   duration=pulseIn(echoPin, HIGH);   distance =(duration/2)/29.1;   Serial.print(distance);   Serial.println("CM");   delay(10);    if((distance<=10))    {     digitalWrite(buzzPin, HIGH); }    else if(distance>10)  {      digitalWrite(buzzPin, LOW);    } } Your project is all set...!!! Visit my YouTube channel once and see more interesting projects. https://www.youtu...