Raspberry pi & Raspberry Pico 433MHZ: transmit, receive, relay

433/433Utils/rc-switch/examples/ReceiveDemo_Advanced/ReceiveDemo_Advanced.ino

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+/*
+  Example for receiving
+  
+  https://github.com/sui77/rc-switch/
+  
+  If you want to visualize a telegram copy the raw data and 
+  paste it into http://test.sui.li/oszi/
+*/
+
+#include <RCSwitch.h>
+
+RCSwitch mySwitch = RCSwitch();
+
+void setup() {
+  Serial.begin(9600);
+  mySwitch.enableReceive(0);  // Receiver on interrupt 0 => that is pin #2
+}
+
+void loop() {
+  if (mySwitch.available()) {
+    output(mySwitch.getReceivedValue(), mySwitch.getReceivedBitlength(), mySwitch.getReceivedDelay(), mySwitch.getReceivedRawdata(),mySwitch.getReceivedProtocol());
+    mySwitch.resetAvailable();
+  }
+}

433/433Utils/rc-switch/examples/ReceiveDemo_Advanced/output.ino

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+static const char* bin2tristate(const char* bin);
+static char * dec2binWzerofill(unsigned long Dec, unsigned int bitLength);
+
+void output(unsigned long decimal, unsigned int length, unsigned int delay, unsigned int* raw, unsigned int protocol) {
+
+  const char* b = dec2binWzerofill(decimal, length);
+  Serial.print("Decimal: ");
+  Serial.print(decimal);
+  Serial.print(" (");
+  Serial.print( length );
+  Serial.print("Bit) Binary: ");
+  Serial.print( b );
+  Serial.print(" Tri-State: ");
+  Serial.print( bin2tristate( b) );
+  Serial.print(" PulseLength: ");
+  Serial.print(delay);
+  Serial.print(" microseconds");
+  Serial.print(" Protocol: ");
+  Serial.println(protocol);
+  
+  Serial.print("Raw data: ");
+  for (unsigned int i=0; i<= length*2; i++) {
+    Serial.print(raw[i]);
+    Serial.print(",");
+  }
+  Serial.println();
+  Serial.println();
+}
+
+static const char* bin2tristate(const char* bin) {
+  static char returnValue[50];
+  int pos = 0;
+  int pos2 = 0;
+  while (bin[pos]!='\0' && bin[pos+1]!='\0') {
+    if (bin[pos]=='0' && bin[pos+1]=='0') {
+      returnValue[pos2] = '0';
+    } else if (bin[pos]=='1' && bin[pos+1]=='1') {
+      returnValue[pos2] = '1';
+    } else if (bin[pos]=='0' && bin[pos+1]=='1') {
+      returnValue[pos2] = 'F';
+    } else {
+      return "not applicable";
+    }
+    pos = pos+2;
+    pos2++;
+  }
+  returnValue[pos2] = '\0';
+  return returnValue;
+}
+
+static char * dec2binWzerofill(unsigned long Dec, unsigned int bitLength) {
+  static char bin[64]; 
+  unsigned int i=0;
+
+  while (Dec > 0) {
+    bin[32+i++] = ((Dec & 1) > 0) ? '1' : '0';
+    Dec = Dec >> 1;
+  }
+
+  for (unsigned int j = 0; j< bitLength; j++) {
+    if (j >= bitLength - i) {
+      bin[j] = bin[ 31 + i - (j - (bitLength - i)) ];
+    } else {
+      bin[j] = '0';
+    }
+  }
+  bin[bitLength] = '\0';
+  
+  return bin;
+}