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‎Jeenode_3/Nanode_3_receiver_with_MQTT/Nanode_3_receiver_with_MQTT.ino‎

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#include <JeeLib.h>
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#include <NanodeUNIO.h>
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#include <NanodeUIP.h>
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#include <NanodeMQTT.h>
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NanodeMQTT mqtt(&uip);
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struct timer my_timer;
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#define STRING_BUFFER 128
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// RF stuff
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#define RF_NODEID 1 // master node
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#define RF_CHANNEL 125
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#define GREEN_LED 5
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#define RED_LED 6
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// this must be added since we're using the watchdog for low-power waiting
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// ISR(WDT_vect) { Sleepy::watchdogEvent(); }
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unsigned int count_crc = 0;
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unsigned int count_pkts = 0;
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// Payload data structure
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typedef struct {
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int nodeid; // sending node ID
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char type;
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float data;
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} Payload;
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Payload data;
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void setup() {
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byte macaddr[6];
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NanodeUNIO unio(NANODE_MAC_DEVICE);
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pinMode(GREEN_LED, OUTPUT);
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digitalWrite(GREEN_LED, HIGH); //off
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Serial.begin(57600);
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Serial.println("Initialising...");
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unio.read(macaddr, NANODE_MAC_ADDRESS, 6);
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uip.init(macaddr);
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// FIXME: use DHCP instead
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uip.set_ip_addr(192, 168, 1, 199);
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uip.set_netmask(255, 255, 255, 0);
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uip.wait_for_link();
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Serial.println("Link is up");
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// FIXME: resolve using DNS instead
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mqtt.set_server_addr(192, 168, 1, 103);
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mqtt.connect();
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rf12_initialize(RF_NODEID, RF12_868MHZ, RF_CHANNEL);
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// flash the LED to signify booting
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digitalWrite(GREEN_LED, LOW);
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delay(100);
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digitalWrite(GREEN_LED, HIGH);
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delay(150);
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digitalWrite(GREEN_LED, LOW);
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delay(200);
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digitalWrite(GREEN_LED, HIGH);
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}
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void loop() {
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char topic[STRING_BUFFER];
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char message[STRING_BUFFER];
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uip.poll();
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if (rf12_recvDone()) {
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if (rf12_crc == 0) {
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count_pkts++;
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Payload temp = *(Payload*) rf12_data;
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data = temp;
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Serial.print("n:");
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Serial.print(data.nodeid);
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Serial.print("\tt:");
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Serial.print(data.type);
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Serial.print("\td:");
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Serial.print(data.data);
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Serial.println();
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sprintf (topic, "nanode/sensor/%d", data.nodeid);
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dtostrf(data.data, 4, 2, message);
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// quick flash on receipt of packet
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digitalWrite(GREEN_LED, LOW);
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delay(50);
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digitalWrite(GREEN_LED, HIGH);
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Serial.print(topic);
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Serial.print(", ");
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Serial.println(message);
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if (mqtt.connected()) {
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Serial.print("Publishing ");
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Serial.print(topic);
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Serial.print(":");
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Serial.println(message);
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mqtt.publish(topic, message);
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mqtt.publish("Test", "Hello World!");
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Serial.println("Published.");
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// quick flash on publish
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digitalWrite(RED_LED, LOW);
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delay(50);
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digitalWrite(RED_LED, HIGH);
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}
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} else {
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count_crc++;
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}
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}
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}
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‎libraries/.DS_Store‎

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