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 (VCC from arduino VCC)
10 433Mhz send
11 DS18B20
-
+ 12 315Mhz send
+ 13 status LED
+
*/
#include <RCSwitch.h>
OneWire oneWire(11);
DallasTemperature sensors(&oneWire);
+
+// 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 = 5; // times (5 times seem a little low for sensors which are more than 10m away)
+
+void send_315(char *code) {
+ Serial.print("send 315Mhz ");
+ Serial.println(code);
+
+ // we have to send same signal at least two times
+ for(int r = 0; r < repeat; r++ ) {
+
+ digitalWrite(LED_PIN, HIGH);
+
+ for(int i = 0; i < strlen(code); i++) {
+ int i1 = int_0;
+ int i2 = int_1;
+ if (code[i] == '1' ) {
+ i1 = int_1;
+ i2 = int_0;
+ }
+ digitalWrite(TX_PIN, HIGH);
+ delayMicroseconds(i1);
+ digitalWrite(TX_PIN, LOW);
+ delayMicroseconds(i2);
+ }
+
+ digitalWrite(LED_PIN, LOW);
+
+ delayMicroseconds(wait); // guess
+ }
+
+}
+
+
+// DHT22
+#include "DHT.h"
+DHT dht;
+
+#include "RunningAverage.h"
+
+RunningAverage temp_avg(10);
+RunningAverage hum_avg(10);
+
+// setup
+
+void help() {
+ Serial.print("# press buttons on remote or send AB where A = socket (0..9), B = state (0 = off, 1 = on)\nB00...00 (24 digits) to send binary\n");
+}
+
void setup() {
- Serial.begin(9600);
+ Serial.begin(115200);
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();
- Serial.print("press buttons on remote or send AB where A = socket (0..9), B = state (0 = off, 1 = on)\nB00...00 (24 digits) to send binary\n");
+ // 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();
+ float delta_t = abs(t - temp_avg.getAverage());
+ if ( dht.getStatus() == 0 && delta_t < 5 )
+ temp_avg.addValue( t );
+ else dht22_errors++;
+ float h = dht.getHumidity();
+ float delta_h = abs(h - hum_avg.getAverage());
+ if ( dht.getStatus() == 0 && delta_h < 10 )
+ hum_avg.addValue( h );
+ else dht22_errors++;
+ time = millis();
+ }
+
if (mySwitch.available()) {
Serial.print(mySwitch.getReceivedBitlength());
Serial.print(" bits ");
}
if (Serial.available() > 0) {
char input = Serial.read();
+
+ if (input == '?' || input == 'h') {
+ help();
+ } else
+
if ( input == 'T' ) {
Serial.print("DS18B20 temperature = ");
sensors.requestTemperatures();
Serial.println( sensors.getTempCByIndex(0) );
} else
+
if ( input == 'B' ) {
Serial.readBytesUntil('\n', binary_data, sizeof(binary_data));
- Serial.print("send B");
+ Serial.print("# send B");
Serial.println( binary_data );
+ LED_ON
mySwitch.send( binary_data );
+ LED_OFF
+ } else
+
+ 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_315("1000100110110000000000010");
} else
- if ( input >= 0x30 && input <= 0x39 ) {
+ if (input == 'b') {
+ send_315("1011001001011111000000010");
+ } else
+
+ // DHT22
+ if (input == 'd') {
+ Serial.print("temperature=");
+ Serial.print(temp_avg.getAverage());
+ Serial.print(" humidity=");
+ Serial.print(hum_avg.getAverage());
+ Serial.print(" errors=");
+ Serial.println(dht22_errors);
+ }
+
+ if ( input >= 0x30 && input <= 0x39 && serial_pos < 2 ) {
input = input - 0x30; // ASCII to number
serial_data[serial_pos++] = input;
} else {
- Serial.print("ignore: ");
+ Serial.print("# ignore: ");
Serial.println(input, HEX);
}
if ( serial_pos == 2 ) {
- Serial.print("socket: ");
+ Serial.print("switch=");
Serial.print(serial_data[0], DEC);
- Serial.print(" state: ");
+ Serial.print(" state=");
Serial.println(serial_data[1] ? "on" : "off");
- serial_pos = 0;
- if ( serial_data[1] ) { // on
- switch ( serial_data[0] ) {
+
+ byte on = serial_data[1];
+
+ LED_ON
+
+ // switches, 433 Mhz set of 3
+ switch ( serial_data[0] ) {
case 1:
- mySwitch.send("110101011101010000001100");
- break;
+ on ? mySwitch.send("110101011101010000001100")
+ : mySwitch.send("110101011101010000000011");
+ break;
case 2:
- mySwitch.send("110101010111010000001100");
+ on ? mySwitch.send("110101010111010000001100")
+ : mySwitch.send("110101010111010000000011");
break;
case 3:
- mySwitch.send("110101010101110000001100");
+ on ? mySwitch.send("110101010101110000001100")
+ : mySwitch.send("110101010101110000000011");
break;
- default:
- Serial.print("invalid switch on number ");
- Serial.println(serial_data[0], DEC);
- }
- } else { // off
- switch ( serial_data[0] ) {
- case 1:
- mySwitch.send("110101011101010000000011");
- break;
- case 2:
- mySwitch.send("110101010111010000000011");
- break;
- case 3:
- mySwitch.send("110101010101110000000011");
+ case 4:
+ 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 off number ");
+ Serial.print("# invalid switch number ");
Serial.println(serial_data[0], DEC);
- }
- }
+ }
+
+ LED_OFF
+
+ // reset for later
+ serial_pos = 0;
}
}
}
projects / Arduino / blobdiff