Recetor Infravermelho IR Receiver VS1838

The VS1838 Infrared Receiver operates at the frequency of 38KHz, which is the frequency of most remote controls. For its operation, a microcontrolled platform is required.

In home automation projects with Arduino, PIC or NodeMCU ESP8266 the IR Fotoreceptor / Receiver is TSOP4838 widely used. Together with an IR Emitter LED and the microcontrolled platform, it is possible to replace the remote control of the devices (TV, DVD, BluRay, stereo) and use an alternative control system through a smartphone or tablet with an Android app for example.

Specifications:
• Working voltage: 2.7V~5.5V;
• Current consumption: 1.5uA;
• Working frequency: 38Khz;
• Angle: +/- 45°;
• Low logic level voltage: 0.4V;
• High logic level voltage: up to 4.5V;
• Working temperature: -20° ~ 85°.

Application example:

Recetor Infravermelho IR Receiver VS1838

Code for arduino:

#include <IRremote.h>

int RECV_PIN = 3;
IRrecv irrecv(RECV_PIN);
decode_results results;

void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}

//Infinite loop
void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, DEC);
dump(&results);
irrecv.resume(); // Receive the next value
}
}

//Dumps the result and prints the numeric received dada and type of remote
void dump(decode_results *results) {
// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
int count = results->rawlen;
if (results->decode_type == UNKNOWN) {
Serial.print("Unknown encoding: ");
}
else if (results->decode_type == NEC) {
Serial.print("Decoded NEC: ");
}
else if (results->decode_type == SONY) {
Serial.print("Decoded SONY: ");
}
else if (results->decode_type == RC5) {
Serial.print("Decoded RC5: ");
}
else if (results->decode_type == RC6) {
Serial.print("Decoded RC6: ");
}
else if (results->decode_type == PANASONIC) {
Serial.print("Decoded PANASONIC - Address: ");
Serial.print(results->address, HEX);
Serial.print(" Value: ");
}
else if (results->decode_type == LG) {
Serial.print("Decoded LG: ");
}
else if (results->decode_type == JVC) {
Serial.print("Decoded JVC: ");
}
else if (results->decode_type == AIWA_RC_T501) {
Serial.print("Decoded AIWA RC T501: ");
}
else if (results->decode_type == WHYNTER) {
Serial.print("Decoded Whynter: ");
}
Serial.print(results->value, HEX);
Serial.print(" (");
Serial.print(results->bits, DEC);
Serial.println(" bits)");
Serial.print("Raw (");
Serial.print(count, DEC);
Serial.print("): ");

for (int i = 1; i < count; i++) {
if (i & 1) {
Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
}
else {
Serial.write('-');
Serial.print((unsigned long) results->rawbuf[i]*USECPERTICK, DEC);
}
Serial.print(" ");
}
Serial.println();
}