Florian
1ab21b3c37
first implementation of a lora gateway integration, tested on ttgo heltec boards with embedded lora module #356 Sending and receiving working
109 lines
3.5 KiB
Arduino
109 lines
3.5 KiB
Arduino
/*
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OpenMQTTGateway - ESP8266 or Arduino program for home automation
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Act as a wifi or ethernet gateway between your 433mhz/infrared IR/BLE signal and a MQTT broker
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Send and receiving command by MQTT
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This gateway enables to:
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- receive MQTT data from a topic and send LORA signal corresponding to the received MQTT data
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- publish MQTT data to a different topic related to received LORA signal
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Copyright: (c)Florian ROBERT
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This file is part of OpenMQTTGateway.
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OpenMQTTGateway is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenMQTTGateway is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef ZgatewayLORA
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#include <SPI.h>
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#include <LoRa.h>
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#include <Wire.h>
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void setupLORA() {
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SPI.begin(LORA_SCK,LORA_MISO,LORA_MOSI,LORA_SS);
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LoRa.setPins(LORA_SS,LORA_RST,LORA_DI0);
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if (!LoRa.begin(LORA_BAND)) {
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trc("ZgatewayLORA setup failed!");
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while (1);
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}
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LoRa.receive();
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trc(F("LORA_SCK"));
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trc(LORA_SCK);
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trc(F("LORA_MISO"));
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trc(LORA_MISO);
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trc(F("LORA_MOSI"));
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trc(LORA_MOSI);
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trc(F("LORA_SS"));
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trc(LORA_SS);
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trc(F("LORA_RST"));
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trc(LORA_RST);
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trc(F("LORA_DI0"));
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trc(LORA_DI0);
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trc(F("ZgatewayLORA setup done"));
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}
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void LORAtoMQTT(){
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int packetSize = LoRa.parsePacket();
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if (packetSize) {
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StaticJsonBuffer<JSON_MSG_BUFFER> jsonBuffer;
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JsonObject& LORAdata = jsonBuffer.createObject();
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trc(F("Rcv. LORA"));
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#ifdef ESP32
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String taskMessage = "LORA Task running on core ";
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taskMessage = taskMessage + xPortGetCoreID();
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trc(taskMessage);
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#endif
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String packet ;
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packet ="";
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for (int i = 0; i < packetSize; i++) { packet += (char) LoRa.read(); }
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LORAdata.set("rssi", (int)LoRa.packetRssi());
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LORAdata.set("packetSize", (int)packetSize);
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LORAdata.set("message", (char *)packet.c_str());
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pub(subjectLORAtoMQTT,LORAdata);
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}
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}
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#ifdef jsonReceiving
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void MQTTtoLORA(char * topicOri, JsonObject& LORAdata) { // json object decoding
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if (strcmp(topicOri,subjectMQTTtoLORA) == 0){
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trc(F("MQTTtoLORA json"));
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const char * message = LORAdata["message"];
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if (message) {
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LoRa.beginPacket();
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LoRa.print(message);
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LoRa.endPacket();
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trc(F("MQTTtoLORA OK"));
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pub(subjectGTWLORAtoMQTT, LORAdata);// we acknowledge the sending by publishing the value to an acknowledgement topic, for the moment even if it is a signal repetition we acknowledge also
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}else{
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trc(F("MQTTtoLORA Fail json"));
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}
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}
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}
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#endif
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#ifdef simpleReceiving
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void MQTTtoLORA(char * topicOri, char * LORAdata) { // json object decoding
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if (strcmp(topicOri,subjectMQTTtoLORA) == 0){
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LoRa.beginPacket();
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LoRa.print(LORAdata);
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LoRa.endPacket();
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trc(F("MQTTtoLORA OK"));
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pub(subjectGTWLORAtoMQTT, LORAdata);// we acknowledge the sending by publishing the value to an acknowledgement topic, for the moment even if it is a signal repetition we acknowledge also
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}
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}
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#endif
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#endif
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