Created
August 29, 2019 04:44
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Data receiver sketch
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// data receiver sketch | |
// | |
// https://pmdway.com/blogs/product-guides-for-arduino/tutorial-using-long-range-315mhz-rf-wireless-transceivers-with-arduino | |
// | |
// | |
#include <VirtualWire.h> | |
// use onboard LED for status | |
const int ledPin = 13; | |
int Sensor1Data; | |
// holds data from receiver | |
char Sensor1CharMsg[4]; | |
void setup() { | |
Serial.begin(9600); | |
pinMode(ledPin, OUTPUT); | |
vw_set_ptt_inverted(true); | |
vw_setup(2000); // data speed in bps | |
vw_set_rx_pin(11); // receiver data pin to digital 11 | |
vw_rx_start(); | |
} | |
void loop() { | |
uint8_t buf[VW_MAX_MESSAGE_LEN]; | |
uint8_t buflen = VW_MAX_MESSAGE_LEN; | |
if (vw_get_message(buf, &buflen)) | |
{ | |
int i; | |
// LED on to indicate message coming in | |
digitalWrite(13, true); | |
for (i = 0; i < buflen; i++) | |
{ | |
// fill array with data from receiver | |
Sensor1CharMsg[i] = char(buf[i]); | |
} | |
// null terminate the char array, indicates the end of the data | |
Sensor1CharMsg[buflen] = '\0'; | |
// convert data in array to a usable integer | |
Sensor1Data = atoi(Sensor1CharMsg); | |
// send data to serial monitor | |
Serial.print("tx analog pin 1 reads: "); | |
Serial.println(Sensor1Data); | |
// message reception finished, turn off onboard LED | |
digitalWrite(13, false); | |
} | |
} |
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