I have 3 ultrasonic Sensor (HC-SR04), i want to use one of them as transmitter, and the other as receiver, i want to let the first one send ultra Sonic waves and the other receive these waves from the same transmitter.
how can i do that ?
i tried to send trigger for each ultrasonic and connect them on different pins on PIC, but its now work.
its something like this project but using HC-SR04