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OpenMQTT-Gateway/ZgatewaySRFB.ino
T
Florian d8dba15a81 Publish refactoring (#298) 
* factoring of the publishing function
* integration of json publishing to MQTT
* receiving and transcode json messages from mqtt
* replace the TRACE runtime condition by a buildtime one so as to decrease program size
* remove retainFlag parameter not necessary for the moment
* Increase the scope of tests for arduino mega and esp32
* Update arduinojson library to 5.13.3
* add macros to choose between simple or json publishing or both
* differentiate build test for ATmega2560
* correct wrong sprintf definition
* change IDE version for continuous integration
* let default warning level in arduino ide
* correct pins for ESP32
* reorganize user_config
2018-11-05 22:02:27 +01:00

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/*
OpenMQTTGateway - ESP8266 or Arduino program for home automation
Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal and a MQTT broker
Send and receiving command by MQTT
This gateway enables to:
- receive MQTT data from a topic and send RF 433Mhz signal corresponding to the received MQTT data using SONOFF RF BRIDGE
- publish MQTT data to a different topic related to received 433Mhz signal using SONOFF RF BRIDGE
This implementation into OpenMQTTGateway is based on Xose Pérez work ESPURNA (https://bitbucket.org/xoseperez/espurna)
Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
OpenMQTTGateway integration by Florian ROBERT
This file is part of OpenMQTTGateway.
OpenMQTTGateway is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenMQTTGateway is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef ZgatewaySRFB
unsigned char _uartbuf[RF_MESSAGE_SIZE+3] = {0};
unsigned char _uartpos = 0;
void setupSRFB(){
trc(F("ZgatewaySRFB setup done "));
trc("Serial Baud" + String(SERIAL_BAUD));
}
void _rfbSend(byte * message) {
Serial.println();
Serial.write(RF_CODE_START);
Serial.write(RF_CODE_RFOUT);
for (unsigned char j=0; j<RF_MESSAGE_SIZE; j++) {
Serial.write(message[j]);
}
Serial.write(RF_CODE_STOP);
Serial.flush();
Serial.println();
}
void _rfbSend(byte * message, int times) {
char buffer[RF_MESSAGE_SIZE];
_rfbToChar(message, buffer);
trc("[RFBRIDGE] Sending MESSAGE '%s' %d time(s)\n");
for (int i=0; i<times; i++) {
if (i>0) {
unsigned long start = millis();
while (millis() - start < RF_SEND_DELAY) delay(1);
}
_rfbSend(message);
}
}
boolean SRFBtoMQTT() {
static bool receiving = false;
while (Serial.available()) {
yield();
byte c = Serial.read();
if (receiving) {
if (c == RF_CODE_STOP) {
_rfbDecode();
receiving = false;
} else {
_uartbuf[_uartpos++] = c;
}
} else if (c == RF_CODE_START) {
_uartpos = 0;
receiving = true;
}
}
return receiving;
}
void _rfbDecode() {
static unsigned long last = 0;
if (millis() - last < RF_RECEIVE_DELAY) return;
last = millis();
byte action = _uartbuf[0];
char buffer[RF_MESSAGE_SIZE * 2 + 1] = {0};
if (action == RF_CODE_RFIN) {
_rfbToChar(&_uartbuf[1], buffer);
trc(F("Creating SRFB buffer"));
StaticJsonBuffer<JSON_MSG_BUFFER> jsonBuffer;
JsonObject& SRFBdata = jsonBuffer.createObject();
SRFBdata.set("raw", (char *)buffer);
char val[8]= {0};
extract_char(buffer, val, 12 ,8, false,true);
SRFBdata.set("value", (char *)val);
char val_Tsyn[4]= {0};
extract_char(buffer, val_Tsyn , 0 ,4, false, true);
SRFBdata.set("delay", (char *)val_Tsyn);
char val_Thigh[4]= {0};
extract_char(buffer, val_Thigh , 4 ,4, false, true);
SRFBdata.set("val_Thigh", (char *)val_Thigh);
char val_Tlow[4]= {0};
extract_char(buffer,val_Tlow , 8 ,4, false, true);
SRFBdata.set("val_Tlow", (char *)val_Tlow);
unsigned long MQTTvalue = SRFBdata.get<unsigned long>("value");
if (!isAduplicate(MQTTvalue) && MQTTvalue!=0) {// conditions to avoid duplications of RF -->MQTT
trc(F("Adv data SRFBtoMQTT"));
pub(subjectSRFBtoMQTT,SRFBdata);
if (repeatSRFBwMQTT){
trc(F("Publish SRFB for repeat"));
pub(subjectMQTTtoSRFB,SRFBdata);
}
}
_rfbAck();
}
}
void _rfbAck() {
trc("[RFBRIDGE] Sending ACK\n");
Serial.println();
Serial.write(RF_CODE_START);
Serial.write(RF_CODE_ACK);
Serial.write(RF_CODE_STOP);
Serial.flush();
Serial.println();
}
/*
From an hexa char array ("A220EE...") to a byte array (half the size)
*/
bool _rfbToArray(const char * in, byte * out) {
if (strlen(in) != RF_MESSAGE_SIZE * 2) return false;
char tmp[3] = {0};
for (unsigned char p = 0; p<RF_MESSAGE_SIZE; p++) {
memcpy(tmp, &in[p*2], 2);
out[p] = strtol(tmp, NULL, 16);
}
return true;
}
/*
From a byte array to an hexa char array ("A220EE...", double the size)
*/
bool _rfbToChar(byte * in, char * out) {
for (unsigned char p = 0; p<RF_MESSAGE_SIZE; p++) {
sprintf_P(&out[p*2], PSTR("%02X"), in[p]);
}
return true;
}
#ifdef simplePublishing
void MQTTtoSRFB(char * topicOri, char * datacallback) {
// RF DATA ANALYSIS
String topic = topicOri;
int valueRPT = 0;
if (topic == subjectMQTTtoSRFB){
int valueMiniPLSL = 0;
int valueMaxiPLSL = 0;
int valueSYNC = 0;
int pos = topic.lastIndexOf(SRFBRptKey);
if (pos != -1){
pos = pos + +strlen(SRFBRptKey);
valueRPT = (topic.substring(pos,pos + 1)).toInt();
trc(F("SRFB Repeat:"));
trc(valueRPT);
}
int pos2 = topic.lastIndexOf(SRFBminipulselengthKey);
if (pos2 != -1) {
pos2 = pos2 + strlen(SRFBminipulselengthKey);
valueMiniPLSL = (topic.substring(pos2,pos2 + 3)).toInt();
trc(F("RF Mini Pulse Lgth:"));
trc(valueMiniPLSL);
}
int pos3 = topic.lastIndexOf(SRFBmaxipulselengthKey);
if (pos3 != -1){
pos3 = pos3 + strlen(SRFBmaxipulselengthKey);
valueMaxiPLSL = (topic.substring(pos3,pos3 + 2)).toInt();
trc(F("RF Maxi Pulse Lgth:"));
trc(valueMaxiPLSL);
}
int pos4 = topic.lastIndexOf(SRFBsyncKey);
if (pos4 != -1){
pos4 = pos4 + strlen(SRFBsyncKey);
valueSYNC = (topic.substring(pos4,pos4 + 2)).toInt();
trc(F("RF sync:"));
trc(valueSYNC);
}
trc(F("MQTTtoSRFB prts"));
if (valueRPT == 0) valueRPT = 1;
if (valueMiniPLSL == 0) valueMiniPLSL = 320;
if (valueMaxiPLSL == 0) valueMaxiPLSL = 900;
if (valueSYNC == 0) valueSYNC = 9500;
byte hex_valueMiniPLSL[2];
hex_valueMiniPLSL[0] = (int)((valueMiniPLSL >> 8) & 0xFF) ;
hex_valueMiniPLSL[1] = (int)(valueMiniPLSL & 0xFF) ;
byte hex_valueMaxiPLSL[2];
hex_valueMaxiPLSL[0] = (int)((valueMaxiPLSL >> 8) & 0xFF) ;
hex_valueMaxiPLSL[1] = (int)(valueMaxiPLSL & 0xFF) ;
byte hex_valueSYNC[2];
hex_valueSYNC[0] = (int)((valueSYNC >> 8) & 0xFF) ;
hex_valueSYNC[1] = (int)(valueSYNC & 0xFF) ;
unsigned long data = strtoul(datacallback, NULL, 10); // we will not be able to pass values > 4294967295
byte hex_data[3];
hex_data[0] = (unsigned long)((data >> 16) & 0xFF) ;
hex_data[1] = (unsigned long)((data >> 8) & 0xFF) ;
hex_data[2] = (unsigned long)(data & 0xFF) ;
byte message_b[RF_MESSAGE_SIZE];
memcpy(message_b, hex_valueSYNC, 2);
memcpy(message_b + 2, hex_valueMiniPLSL, 2);
memcpy(message_b + 4, hex_valueMaxiPLSL, 2);
memcpy(message_b + 6, hex_data, 3);
_rfbSend(message_b, valueRPT);
// Acknowledgement to the GTWRF topic
pub(subjectGTWSRFBtoMQTT, datacallback);// 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
}
if (topic == subjectMQTTtoSRFBRaw){
int pos = topic.lastIndexOf(SRFBRptKey);
if (pos != -1){
pos = pos + +strlen(SRFBRptKey);
valueRPT = (topic.substring(pos,pos + 1)).toInt();
trc(F("SRFB Repeat:"));
trc(valueRPT);
}
if (valueRPT == 0) valueRPT = 1;
byte message_b[RF_MESSAGE_SIZE];
_rfbToArray(datacallback,message_b);
_rfbSend(message_b, valueRPT);
// Acknowledgement to the GTWRF topic
pub(subjectGTWSRFBtoMQTT, datacallback);// 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
}
}
#endif
#ifdef jsonPublishing
void MQTTtoSRFB(char * topicOri, JsonObject& SRFBdata) {
// RF DATA ANALYSIS
String topic = topicOri;
const char * raw = SRFBdata["raw"];
int valueRPT = SRFBdata["repeat"]|1;
if (topic == subjectMQTTtoSRFB){
trc(F("MQTTtoSRFB json data analysis"));
if (raw){ // send raw in priority when defined in the json
trc(F("MQTTtoSRFB raw ok"));
byte message_b[RF_MESSAGE_SIZE];
_rfbToArray(raw,message_b);
_rfbSend(message_b, valueRPT);
}else{
unsigned long data = SRFBdata["value"];
if (data != 0) {
trc(F("MQTTtoSRFB data ok"));
int valueMiniPLSL = SRFBdata["val_Tlow"];
int valueMaxiPLSL =SRFBdata["val_Thigh"];
int valueSYNC = SRFBdata["delay"];
if (valueRPT == 0) valueRPT = 1;
if (valueMiniPLSL == 0) valueMiniPLSL = 320;
if (valueMaxiPLSL == 0) valueMaxiPLSL = 900;
if (valueSYNC == 0) valueSYNC = 9500;
byte hex_valueMiniPLSL[2];
hex_valueMiniPLSL[0] = (int)((valueMiniPLSL >> 8) & 0xFF) ;
hex_valueMiniPLSL[1] = (int)(valueMiniPLSL & 0xFF) ;
byte hex_valueMaxiPLSL[2];
hex_valueMaxiPLSL[0] = (int)((valueMaxiPLSL >> 8) & 0xFF) ;
hex_valueMaxiPLSL[1] = (int)(valueMaxiPLSL & 0xFF) ;
byte hex_valueSYNC[2];
hex_valueSYNC[0] = (int)((valueSYNC >> 8) & 0xFF) ;
hex_valueSYNC[1] = (int)(valueSYNC & 0xFF) ;
byte hex_data[3];
hex_data[0] = (unsigned long)((data >> 16) & 0xFF) ;
hex_data[1] = (unsigned long)((data >> 8) & 0xFF) ;
hex_data[2] = (unsigned long)(data & 0xFF) ;
byte message_b[RF_MESSAGE_SIZE];
memcpy(message_b, hex_valueSYNC, 2);
memcpy(message_b + 2, hex_valueMiniPLSL, 2);
memcpy(message_b + 4, hex_valueMaxiPLSL, 2);
memcpy(message_b + 6, hex_data, 3);
trc(F("MQTTtoSRFB send"));
_rfbSend(message_b, valueRPT);
// Acknowledgement to the GTWRF topic
pub(subjectGTWSRFBtoMQTT, SRFBdata);// 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
}else{
trc(F("MQTTtoSRFB error decoding value"));
}
}
}
}
#endif
#endif
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