144 lines
5.3 KiB
Arduino
144 lines
5.3 KiB
Arduino
/* MyMQTT Broker Gateway 0.1b
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Created by Daniel Wiegert <daniel.wiegert@gmail.com>
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Based on MySensors Ethernet Gateway by Henrik Ekblad <henrik.ekblad@gmail.com>
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http://www.mysensors.org
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Requires MySensors lib 1.4b
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* Change below; TCP_IP, TCP_PORT, TCP_MAC
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This will listen on your selected TCP_IP:TCP_PORT below, Please change TCP_MAC your liking also.
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*1 -> NOTE: Keep first byte at x2, x6, xA or xE (replace x with any hex value) for using Local Ranges.
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*2 You can use standard pin set-up as MySensors recommends or if you own a IBOARD you may change
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the radio-pins below if you hardware mod your iBoard. see [URL BELOW] for more details.
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http://forum.mysensors.org/topic/224/iboard-cheap-single-board-ethernet-arduino-with-radio/5
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* Don't forget to look at the definitions in libraries\MySensors\MyMQTT.h!
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define TCPDUMP and connect serial interface if you have problems, please write on
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http://forum.mysensors.org/ and explain your problem, include serial output. Don't forget to
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turn on DEBUG in libraries\MySensors\MyConfig.h also.
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MQTT_FIRST_SENSORID is for 'DHCP' server in MyMQTT. You may limit the ID's with FIRST and LAST definition.
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If you want your manually configured below 20 set MQTT_FIRST_SENSORID to 20.
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To disable: set MQTT_FIRST_SENSORID to 255.
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MQTT_BROKER_PREFIX is the leading prefix for your nodes. This can be only one char if like.
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MQTT_SEND_SUBSCRIPTION is if you want the MyMQTT to send a empty payload message to your nodes.
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This can be useful if you want to send latest state back to the MQTT client. Just check if incoming
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message has any length or not.
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Example: if (msg.type==V_LIGHT && strlen(msg.getString())>0) otherwise the code might do strange things.
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* Address-layout is : [MQTT_BROKER_PREFIX]/[NodeID]/[SensorID]/V_[SensorType]
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NodeID and SensorID is uint8 (0-255) number.
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Last segment is translation of the sensor type, look inside MyMQTT.cpp for the definitions.
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User can change this to their needs. We have also left some space for custom types.
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Special: (sensor 255 reserved for special commands)
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You can receive a node sketch name with MyMQTT/20/255/V_Sketch_name (or version with _version)
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To-do:
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Special commands : clear or set EEPROM Values, Send REBOOT and Receive reboot for MyMQTT itself.
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Be able to send ACK so client returns the data being sent.
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... Please come with ideas!
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What to do with publish messages.
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Test in more MQTT clients, So far tested in openhab and MyMQTT for Android (Not my creation)
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- http://www.openhab.org/
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- https://play.google.com/store/apps/details?id=at.tripwire.mqtt.client&hl=en
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... Please notify me if you use this broker with other software.
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* How to set-up Openhab and MQTTGateway:
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http://forum.mysensors.org/topic/303/mqtt-broker-gateway
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*/
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#include <SPI.h>
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#include <MySensor.h>
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#include <MyMQTT.h>
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#include <Ethernet.h>
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// * Use this for IBOARD modded to use standard MISO/MOSI/SCK, see note *1 above!
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/*
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#define RADIO_CE_PIN 3 // radio chip enable
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#define RADIO_SPI_SS_PIN 8 // radio SPI serial select
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#define RADIO_ERROR_LED_PIN A2 // Error led pin
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#define RADIO_RX_LED_PIN A1 // Receive led pin
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#define RADIO_TX_LED_PIN A0 // the PCB, on board LED
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*/
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// * Use this for default configured pro mini / nano etc :
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///*
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#define RADIO_CE_PIN 5 // radio chip enable
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#define RADIO_SPI_SS_PIN 6 // radio SPI serial select
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#define RADIO_ERROR_LED_PIN 7 // Error led pin
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#define RADIO_RX_LED_PIN 8 // Receive led pin
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#define RADIO_TX_LED_PIN 9 // the PCB, on board LED*/
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#define TCP_PORT 1883 // Set your MQTT Broker Listening port.
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IPAddress TCP_IP ( 192, 168, 0, 234 ); // Configure your static ip-address here
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uint8_t TCP_MAC[] = { 0x02, 0xDE, 0xAD, 0x00, 0x00, 0x42 }; // Mac-address - You should change this! see note *2 above!
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//////////////////////////////////////////////////////////////////
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EthernetServer server = EthernetServer(TCP_PORT);
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MyMQTT gw(RADIO_CE_PIN, RADIO_SPI_SS_PIN);
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void processEthernetMessages() {
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char inputString[MQTT_MAX_PACKET_SIZE] = "";
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uint8_t inputSize = 0;
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uint8_t readCnt = 0;
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uint8_t length = 0;
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EthernetClient client = server.available();
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if (client) {
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while (client.available()) {
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uint8_t inChar = client.read();
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readCnt++;
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if (inputSize < MQTT_MAX_PACKET_SIZE) {
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inputString[inputSize] = (char)inChar;
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inputSize++;
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}
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if (readCnt == 2) {
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length = (inChar & 127) * 1;
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}
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if (readCnt == (length+2)) {
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break;
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}
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}
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#ifdef TCPDUMP
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Serial.print("<<");
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char buf[4];
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for (uint8_t a=0; a<inputSize; a++) { sprintf(buf, "%02X ", (uint8_t)inputString[a]); Serial.print(buf); } Serial.println();
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#endif
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gw.processMQTTMessage(inputString, inputSize);
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}
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}
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void writeEthernet(const char *writeBuffer, uint8_t *writeSize) {
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#ifdef TCPDUMP
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Serial.print(">>");
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char buf[4];
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for (uint8_t a=0; a<*writeSize; a++) { sprintf(buf,"%02X ",(uint8_t)writeBuffer[a]); Serial.print(buf); } Serial.println();
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#endif
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server.write((const uint8_t *)writeBuffer, *writeSize);
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}
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int main(void) {
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init();
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Ethernet.begin(TCP_MAC, TCP_IP);
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delay(1000); // Wait for Ethernet to get configured.
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gw.begin(RF24_PA_LEVEL_GW, RF24_CHANNEL, RF24_DATARATE, writeEthernet, RADIO_RX_LED_PIN, RADIO_TX_LED_PIN, RADIO_ERROR_LED_PIN);
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server.begin();
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while (1) {
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processEthernetMessages();
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gw.processRadioMessage();
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}
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}
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