make dht22 errors unsigned int, so we don't wrap into negative

[Arduino] / rpi_promini / rpi_promini.ino

diff --git a/rpi_promini/rpi_promini.ino b/rpi_promini/rpi_promini.ino
index 1adbd5c..38d318d 100644 (file)
--- a/rpi_promini/rpi_promini.ino
+++ b/rpi_promini/rpi_promini.ino
@@ -5,16 +5,16 @@
   RPI pin  Arduino
   RXD      TXD
   TXD      RXD
-  GPIO6    RST
+  BCM25    RST
   GND      GND
   +5V      RAW
 
            2    433Mhz receive
 //           3    433Mhz outdoor temperature sensor receiver # DISABLED
-           8    DHT22
+           8    DHT22 (VCC from arduino VCC)
            10   433Mhz send
            11   DS18B20
-           12   513Mhz send
+           12   315Mhz send
            13   status LED
            
 */
@@ -31,17 +31,19 @@ OneWire oneWire(11);
 DallasTemperature sensors(&oneWire);
 
 
-// 513Mhz light sockets
+// 315Mhz light sockets
 #define TX_PIN 12
 #define LED_PIN 13
+#define LED_ON  digitalWrite(LED_PIN, HIGH);
+#define LED_OFF digitalWrite(LED_PIN, LOW);
 
 int int_0 = 300; // ms
 int int_1 = 900; // ms
 int wait  = 2000; // ms
-int repeat = 10; // times (5 times seem a little low for sensors which are more than 10m away)
+int repeat = 20; // times (5 times seem a little low for sensors which are more than 10m away)
 
-void send_513(char *code) {
-  Serial.print("send 513Mhz ");
+void send_315(char *code) {
+  Serial.print("send 315Mhz ");
   Serial.println(code);
   
   // we have to send same signal at least two times
@@ -62,10 +64,11 @@ void send_513(char *code) {
       delayMicroseconds(i2);
     }
 
+    digitalWrite(LED_PIN, LOW);
+
     delayMicroseconds(wait); // guess
   }
 
-  digitalWrite(LED_PIN, LOW);
 }
 
 
@@ -73,6 +76,11 @@ void send_513(char *code) {
 #include "DHT.h"
 DHT dht;
 
+#include "RunningAverage.h"
+
+RunningAverage temp_avg(10);
+RunningAverage hum_avg(10);
+
 // setup
 
 void help() {
@@ -83,6 +91,7 @@ void setup() {
   Serial.begin(9600);
   mySwitch.enableReceive(0);  // Receiver on inerrupt 0 => that is pin #2  
   mySwitch.enableTransmit(10); // with sender wired in receiving doesn't work, pin #10
+  mySwitch.setRepeatTransmit(repeat); // or change to be different for 433 and 315 MHz
 
   // DS18B20
   sensors.begin();
@@ -90,13 +99,31 @@ void setup() {
   // DHT22
   dht.setup(8);
 
+    temp_avg.addValue( dht.getTemperature() );
+    hum_avg.addValue( dht.getHumidity() );
+
 }
 
 int serial_pos = 0;
 char serial_data[2]; // socket (0-9), state (0-1)
-char binary_data[24];
+char binary_data[32];
+unsigned int dht22_errors = 0;
+
+unsigned long time = millis();
 
 void loop() {
+  if ( millis() - time > 2000 ) {
+    float t = dht.getTemperature();
+    if ( dht.getStatus() == 0 )
+      temp_avg.addValue( t );
+    else dht22_errors++;
+    float h = dht.getHumidity();
+    if ( dht.getStatus() == 0 )
+      hum_avg.addValue( h );
+    else dht22_errors++;
+    time = millis();
+  }
+
   if (mySwitch.available()) {
     Serial.print(mySwitch.getReceivedBitlength());
     Serial.print(" bits ");
@@ -120,28 +147,37 @@ void loop() {
        Serial.readBytesUntil('\n', binary_data, sizeof(binary_data));
        Serial.print("# send B");
        Serial.println( binary_data );
+       LED_ON
        mySwitch.send( binary_data );
+       LED_OFF
      } else
 
-    // light sockets at 513 Mhz
+     if ( input == 'R' ) {
+       Serial.readBytesUntil('\n', binary_data, sizeof(binary_data));
+       Serial.print("# send 315 binary ");
+       Serial.println( binary_data );
+       send_315( binary_data );
+     } else
+
+    // light sockets at 315 Mhz
      if (input == 'a') {
-       send_513("1000100110110000000000010");
+       send_315("1000100110110000000000010");
      } else
      if (input == 'b') {
-       send_513("1011001001011111000000010");
+       send_315("1011001001011111000000010");
      } else
 
      // DHT22
      if (input == 'd') {
        Serial.print("temperature=");
-       Serial.print(dht.getTemperature());
+       Serial.print(temp_avg.getAverage());
        Serial.print(" humidity=");
-       Serial.print(dht.getHumidity());
-       Serial.print(" status=");
-       Serial.println(dht.getStatusString());
+       Serial.print(hum_avg.getAverage());
+       Serial.print(" errors=");
+       Serial.println(dht22_errors);
      }
 
-     if ( input >= 0x30 && input <= 0x39 ) {
+     if ( input >= 0x30 && input <= 0x39 && serial_pos < 2 ) {
        input = input - 0x30; // ASCII to number
        serial_data[serial_pos++] = input;
      } else {     
@@ -157,6 +193,8 @@ void loop() {
 
        byte on = serial_data[1];
 
+       LED_ON
+
        // switches, 433 Mhz set of 3
        switch ( serial_data[0] ) {
          case 1:
@@ -175,11 +213,33 @@ void loop() {
            on  ? mySwitch.send("001111110000000011000000")
                : mySwitch.send("001111110000000000000000");
            break;
+         case 5:
+/*
+               cca. 320Mhz 4 channel 4.8A 220V relay
+
+               A       1101001010011010011100010
+               B       1101001010011010011101000
+               C       1101001010011010011100100
+               D       1101001010011010011110000
+               off     1101001010011010011111000
+               on      1101001010011010011100110
+*/
+               switch ( on ) {
+                       case '0': send_315( "1101001010011010011111000" );
+                       case '1': send_315( "1101001010011010011100110" );
+                       case 'A': send_315( "1101001010011010011100010" );
+                       case 'B': send_315( "1101001010011010011101000" );
+                       case 'C': send_315( "1101001010011010011100100" );
+                       case 'D': send_315( "1101001010011010011110000" );
+                       default:  Serial.println("# ERROR: use 0-off 1-on A B C D");
+               }
          default:
            Serial.print("# invalid switch number ");
            Serial.println(serial_data[0], DEC);
        }
 
+        LED_OFF
+
        // reset for later
        serial_pos = 0;
      }