arduino/Adafruit_MQTT_Library
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This commit is contained in:
ladyada
2015-06-02 18:33:03 -04:00
parent 7c5113e32e
commit 0152ac91cb
4 changed files with 266 additions and 66 deletions
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34
Adafruit_MQTT.cpp
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@@ -8,6 +8,10 @@ Adafruit_MQTT::Adafruit_MQTT(const char *server, uint16_t port, const PROGMEM ch
clientid = cid;
username = user;
password = pass;
for (uint8_t i=0; i<MAXSUBSCRIPTIONS; i++) {
subscriptions[i] = 0;
}
}
/*
@@ -116,6 +120,30 @@ uint8_t Adafruit_MQTT::publishPacket(uint8_t *packet, const char *topic, char *d
return len;
}
uint8_t Adafruit_MQTT::subscribePacket(uint8_t *packet, const char *topic, uint8_t qos) {
uint8_t *p = packet;
uint16_t len;
p[0] = MQTT_CTRL_SUBSCRIBE << 4 | MQTT_QOS_1 << 1;
// fill in packet[1] last
p+=2;
// put in a message id,
p[0] = 0xAD;
p[1] = 0xAF;
p+=2;
p = stringprint_P(p, topic);
p[0] = qos;
p++;
len = p - packet;
packet[1] = len-2; // don't include the 2 bytes of fixed header data
return len;
}
Adafruit_MQTT_Publish::Adafruit_MQTT_Publish(Adafruit_MQTT *mqttserver, const char *feed, uint8_t q) {
mqtt = mqttserver;
@@ -140,3 +168,9 @@ bool Adafruit_MQTT_Publish::publish(char *payload) {
return mqtt->publish(topic, payload, qos);
}
Adafruit_MQTT_Subscribe::Adafruit_MQTT_Subscribe(Adafruit_MQTT *mqttserver, const char *feed, uint8_t q) {
mqtt = mqttserver;
topic = feed;
qos = q;
}