add NRFtoTallylight

NRFtoTallylight/NRFtoTallylight.ino

@@ -0,0 +1,73 @@
+#include <RF24.h>
+#include <nRF24L01.h>
+
+//tally LEDs
+const int tallyLED[] = {2,3};
+const int tallyLEDlength = 2;
+boolean tallyLEDstat[2];
+
+# define errorLED 4
+
+//init NRF
+RF24 radio (7, 8);
+const uint16_t address = 0xADB5;
+uint16_t datareceive;
+
+//define min interval to show error
+unsigned long currentTime = millis();
+unsigned long previousTime = 0;
+const long errorTime = 3000;
+
+void setup(){
+   for (int i=0; i < tallyLEDlength; i++){
+    pinMode(tallyLED[i], OUTPUT);
+    digitalWrite(tallyLED[i], LOW);
+  }
+  pinMode(errorLED, OUTPUT);
+  digitalWrite(errorLED, HIGH);
+
+  //start Serial
+  Serial.begin(9600);  
+
+  //start NRF
+  radio.begin();
+  radio.openReadingPipe(0, address);
+  radio.setPALevel(RF24_PA_MAX);
+  radio.setDataRate(RF24_1MBPS);
+  radio.setAutoAck(false);
+  radio.disableCRC();
+  radio.startListening();
+
+  delay(20);
+}
+
+void loop(){
+  while (!updateLoop());
+  radio.read(&datareceive, sizeof(datareceive));
+  if (getChecksum((datareceive >> 8) & 0xFF) != datareceive & 0xFF){
+    digitalWrite(errorLED, HIGH);
+  }else{
+    digitalWrite(errorLED, LOW);
+    for (int i=0; i < tallyLEDlength; i++){
+      digitalWrite(tallyLED[i], (datareceive >> 15 - i) & 1);
+    }
+  }
+}
+
+boolean updateLoop(){
+  currentTime = millis();
+  if (radio.available()){
+    previousTime = currentTime;
+    return true;
+  }
+  else if (currentTime - previousTime >= errorTime){
+    digitalWrite(errorLED, HIGH);
+  }
+  return false;
+}
+
+uint8_t getChecksum(uint8_t data){
+  uint8_t checksum = 0;
+  for (int i=8; i<8; i++) checksum += (data >> i) & 1;
+  return checksum;
+}