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315Mhz wireless transmitter
This sketch transmits a short text message using the VirtualWire library
connect the Transmitter data pin to Arduino pin 12
#include <VirtualWire.h>
void setup()
// Initialize the IO and ISR
vw_setup(2000); // Bits per sec
void loop()
send("Hello there");
void send (char *message)
vw_send((uint8_t *)message, strlen(message));
vw_wait_tx(); // Wait until the whole message is gone
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