When tinkering with 433 Mhz RF appliance switches it's handy to easily check what codes they respond to. This is a simple decoder using the RCswitch library
#include <M5StickC.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();
int x=0;
int y=4;
void setup() {
M5.begin();
M5.Lcd.setRotation(3);
Serial.begin(115200);
mySwitch.enableReceive(0);
//labelled G0 on the "HAT" end of the M5StickC
}
void loop() {
if (mySwitch.available()) {
Serial.print("Code ");
Serial.print( mySwitch.getReceivedValue() );
Serial.print(" / ");
Serial.print( mySwitch.getReceivedBitlength() );
Serial.print("bit ");
Serial.print("Protocol: ");
Serial.println(mySwitch.getReceivedProtocol() );
Serial.print( mySwitch.getReceivedValue() );
Serial.print(",");
Serial.print( mySwitch.getReceivedBitlength() );
Serial.print(",");
Serial.println( mySwitch.getReceivedProtocol() );
M5.Lcd.fillScreen(TFT_BLACK);
M5.Lcd.setTextColor(TFT_GREEN, TFT_BLACK);
M5.Lcd.setCursor(x, y, 2);
M5.Lcd.setTextSize(1);
M5.Lcd.print("Code ");
M5.Lcd.print( String(mySwitch.getReceivedValue()) );
M5.Lcd.print(" / ");
M5.Lcd.print( String(mySwitch.getReceivedBitlength()) );
M5.Lcd.println("bit ");
M5.Lcd.print("Protocol: ");
M5.Lcd.println( String(mySwitch.getReceivedProtocol()) );
mySwitch.resetAvailable();
} //if mySwitch
}//loop
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