piyush9999
commented
1 year ago Hello @mukeshtalks are you able to add multiconnector functionality to the code. Could you please help me in getting the connector 1 and connector 2
Closed mukeshtalks closed 1 year ago
piyush9999
commented
1 year ago Hello @mukeshtalks are you able to add multiconnector functionality to the code. Could you please help me in getting the connector 1 and connector 2
mukeshtalks
commented
1 year ago @piyush9999 I have not tried yet. I was working with one connector only. Can you help me if you are able to add the parameters I am looking for.
matth-x
commented
1 year ago Hi, you can use the more generic function addMeterValueInput. It works similar to the EneryInput and PowerInput, but you can define more details. See the example here:
matth-x
commented
1 year ago @piyush9999 Sorry, I forgot to mention multiple connectors here. See the following code snippet:
int connectorId = 1; //select connectorId 0, 1 or 2
addMeterValueInput([this] () {
return (int32_t) evse->getAmps();
},
"Current.Import",
"A",
nullptr, //location (optional)
nullptr, //phase (optional)
connectorId);Hey, @matth-x if I want to use Two connectors, then the statusNotification should send connector id 1 and 2 but in current condition, it is sending 0 and 1. Is there anything in the main source code that I have to add to get multiple connectors functionality. So I can start and stop transaction and meter them separately
matth-x
commented
1 year ago Hi @piyush9999, in platformio.ini, add -D AO_NUMCONNECTORS=3 to the build_flags section.
The first connector has connectorId 1, the second has Id 2. You can ignore Id 0 for the moment.
Most of the functions in ArduinoOcpp.h have an optional parameter connectorId. It allows to select the connector.
mukeshtalks
commented
1 year ago @matth-x thank you for your reply. I will try the solution you suggest and get back to you if any issues I will face.
piyush9999
commented
1 year ago hey @matth-x I have successfully added two connectors 1 and 2 as you told.
So when I'm starting transaction for Connector ID 2 I'm getting an error from the library as MeterStart Undefined
Log: [AO] Recv: [2,"a992d12c-cfbd-429d-94df-25382d5a52ff","RemoteStartTransaction",{"connectorId":2,"idTag":"Abcd12345"}] 17:34:56.138 -> [AO] Send: [3,"a992d12c-cfbd-429d-94df-25382d5a52ff",{"status":"Accepted"}] 17:34:56.138 -> [AO] info (lib_extras/ArduinoOcpp-master/src/ArduinoOcpp/Tasks/ChargePointStatus/ConnectorStatus.cpp:237): Session mngt: trigger StartTransaction 17:34:56.138 -> [AO] ERROR (lib_extras/ArduinoOcpp-master/src/ArduinoOcpp/Tasks/ChargePointStatus/ConnectorStatus.cpp:245): MeterStart undefined
And same error when I'm stopping the transaction Log: [AO] ERROR (lib_extras/ArduinoOcpp-master/src/ArduinoOcpp/Tasks/ChargePointStatus/ConnectorStatus.cpp:301): MeterStop undefined
matth-x
commented
1 year ago @piyush9999 When adding more connectors, it is necessary to add the setup functions for each connector again. For example, when setting the energy meter:
you need to execute that function once for connectorId = 1 and for connectorId = 2. The same is required for each function which has the parameter unsigned int connectorId.
mukeshtalks
commented
1 year ago @matth-x I have added the meter values as suggested by you but these values are not getting added to the meter values while charging. Can you please suggest what could be wrong? I have added the meter values in main.cpp file in Setup function in SECC example in the library.
mukeshtalks
commented
1 year ago @matth-x I could able to send the meter values to my CMS with new inputs. I missed adding these new inputs to default configurations. After adding these this is working. Thank you for your Support.
piyush9999
commented
1 year ago @matth-x Thanks brother added☺
mukeshtalks
commented
1 year ago @matth-x I have added the code as given below in the setup to add the new measurement values. But after adding this code I started facing an issue. At every power up I need to configure the WebSocket again. Please suggest where could be the issue, or I am missing something.
std::shared_ptr<ArduinoOcpp::Configuration<const char >> mvSampledData = ArduinoOcpp::declareConfiguration<const char >( "MeterValuesSampledData", "", CONFIGURATION_FN); const char example = mvSampledData; //example: read value of configuration *mvSampledData = "Power.Active.Import,Energy.Active.Import.Register,Voltage,Current.Import,SoC,Temperature"; //example: update configuration value //ArduinoOcpp::configuration_save(); //write configs file back to flash immediately (not really necessary though)
std::shared_ptr
ArduinoOcpp::declareConfiguration<const char *>(
"MeterValuesSampledData", "DEFAULT VALUE", CONFIGURATION_FN); //declare configuration and use the default value parameter (replace with required value)
//ArduinoOcpp::configuration_save(); //again, not really necessary@matth-x below is the code in main.cpp for your reference.
`// matth-x/ArduinoOcpp // Copyright Matthias Akstaller 2019 - 2022 // MIT License // // // IMPORTANT: Please add https://github.com/tzapu/WiFiManager.git to the lib_deps of your project! // // This sketch demonstrates a complete OCPP Wi-Fi module of an EVSE. You can flash // an ESP8266/ESP32 with this program, build it into your EVSE and start charging with // OCPP-connectivity. // // The pin mapping and additional comments can be found in this file. You probably need // to adapt a few things before deployment. //
/*
/*
WebSocketsClient wSock; ArduinoOcpp::EspWiFi::OcppClientSocket oSock{&wSock};
int evPlugged = EV_UNPLUGGED;
bool booted = false; ulong scheduleReboot = 0; //0 = no reboot scheduled; otherwise reboot scheduled in X ms ulong reboot_timestamp = 0; //timestamp of the triggering event; if scheduleReboot=0, the timestamp has no meaning
// ============ CAPTIVE PORTAL
struct Ocpp_URL { bool isTLS = true; String host = String('\0'); uint16_t port = 443; String url = String('\0'); bool parse(String& url); };
Ocpp_URL ocppUrlParsed = Ocpp_URL();
bool runWiFiManager(); // ============ END CAPTIVE PORTAL
//============= Kill Transaction ===================== //Added By Mukesh
//====================================================
void setup() {
/*
* Initialize peripherals
*/
Serial.begin(115200);Serial.setDebugOutput(true);pinMode(EV_PLUG_PIN, INPUT);
//pinMode(EV_PLUG_PIN, INPUT_PULLUP);
pinMode(EV_CHARGE_PIN, INPUT);
pinMode(EVSE_GROUND_FAULT_PIN, INPUT);
pinMode(OCPP_CHARGE_PERMISSION_PIN, OUTPUT);
digitalWrite(OCPP_CHARGE_PERMISSION_PIN, OCPP_CHARGE_FORBIDDEN);
pinMode(OCPP_AVAILABILITY_PIN, OUTPUT);
digitalWrite(OCPP_AVAILABILITY_PIN, OCPP_UNAVAILABLE);
pinMode(CHARGE_PERMISSION_LED, OUTPUT);
digitalWrite(CHARGE_PERMISSION_LED, CHARGE_PERMISSION_OFF);
pinMode(AMPERAGE_PIN, OUTPUT);pinMode(AMPERAGE_PIN, OUTPUT);
ledcSetup(0, 1000, 8); //channel=0, freq=1000Hz, range=(2^8)-1
ledcAttachPin(AMPERAGE_PIN, 0);
ledcWrite(AMPERAGE_PIN, 256); //256 is constant +3.3V DCanalogWriteRange(255); //range=(2^8)-1
analogWriteFreq(1000); //freq=1000Hz
analogWrite(AMPERAGE_PIN, 256); //256 is constant +3.3V DC//==========Kill Transaction====================================== pinMode(KILL_TRANSACTION_PIN, INPUT_PULLUP); //================================================================
pinMode(SERVER_CONNECT_LED, OUTPUT);
digitalWrite(SERVER_CONNECT_LED, SERVER_CONNECT_ON); //signal device reboot
delay(100);
digitalWrite(SERVER_CONNECT_LED, SERVER_CONNECT_OFF);std::shared_ptr<ArduinoOcpp::Configuration<const char *>> mvSampledData = ArduinoOcpp::declareConfiguration<const char *>(
"MeterValuesSampledData", "", CONFIGURATION_FN);
const char *example = *mvSampledData; //example: read value of configuration
*mvSampledData = "Power.Active.Import,Energy.Active.Import.Register,Voltage,Current.Import,SoC,Temperature"; //example: update configuration value
ArduinoOcpp::configuration_save(); //write configs file back to flash immediately (not really necessary though)/*
* You can use ArduinoOcpp's internal configurations store for credentials other than those which are
* specified by OCPP. To use it before ArduinoOcpp is initialized, you need to call configuration_init()
*
* This snippet also shows how to integrate a custom filesystem. Just subclass FilesystemAdapter and pass
* it to the library
*/
std::shared_ptr<ArduinoOcpp::FilesystemAdapter> filesystem = ArduinoOcpp::makeDefaultFilesystemAdapter(ArduinoOcpp::FilesystemOpt::Use_Mount_FormatOnFail);
ArduinoOcpp::configuration_init(filesystem);
#if 1
ArduinoOcpp::declareConfiguration<const char *>(
"MeterValuesSampledData", "DEFAULT VALUE", CONFIGURATION_FN); //declare configuration and use the default value parameter (replace with required value)
//ArduinoOcpp::configuration_save(); //again, not really necessary
#endif
/*
* WiFiManager opens a captive portal, lets the user enter the WiFi credentials and provides a settings
* page for the OCPP connection
*/
if (!runWiFiManager()) {
//couldn't connect
PRINTLN(F("[main] Couldn't connect to WiFi after multiple attempts"));
delay(30000);
ESP.restart();
}
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> ocppUrl = ArduinoOcpp::declareConfiguration<const char *>(
"ocppUrl", "", CONFIGURATION_FN, false, false, true, true);
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> CA_cert = ArduinoOcpp::declareConfiguration<const char *>(
"CA_cert", "", CONFIGURATION_FN, false, false, true, true);
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> httpAuthentication = ArduinoOcpp::declareConfiguration<const char *>(
"httpAuthentication", "", CONFIGURATION_FN, false, false, true, true);
String ocppUrlString = String(*ocppUrl);
if (!ocppUrlParsed.parse(ocppUrlString)) {
PRINTLN(F("[main] Invalid OCPP URL. Restart."));
delay(10000);
ESP.restart();
}
PRINTF("[main] host, port, URL: %s, %hu, %s\n",
ocppUrlParsed.host.isEmpty() ? "undefined" : ocppUrlParsed.host.c_str(),
ocppUrlParsed.port,
ocppUrlParsed.url.isEmpty() ? "undefined" : ocppUrlParsed.url.c_str());
/*
* Initialize ArduinoOcpp framework.
*/
wSock.setReconnectInterval(5000);
wSock.enableHeartbeat(15000, 3000, 2);
if (httpAuthentication->getBuffsize() > 1) {
wSock.setAuthorization(*httpAuthentication);
}
if (ocppUrlParsed.isTLS) {
if (CA_cert->getBuffsize() > 0) {
//TODOS: ESP8266: limit BearSSL buffsize
configTime(3 * 3600, 0, "pool.ntp.org", "time.nist.gov"); //alternatively: settimeofday(&de, &tz);
PRINT(F("[main] Wait for NTP time (used for certificate validation) "));
time_t now = time(nullptr);
while (now < 8 * 3600 * 2) {
delay(500);
PRINT('.');
now = time(nullptr);
}
PRINTF(" finished. Unix timestamp is %lu\n", now);
wSock.beginSslWithCA(ocppUrlParsed.host.c_str(), ocppUrlParsed.port, ocppUrlParsed.url.c_str(), *CA_cert, "ocpp1.6");
} else {
wSock.beginSSL(ocppUrlParsed.host.c_str(), ocppUrlParsed.port, ocppUrlParsed.url.c_str(), nullptr, "ocpp1.6");
}
} else {
wSock.begin(ocppUrlParsed.host, ocppUrlParsed.port, ocppUrlParsed.url, "ocpp1.6");
}
OCPP_initialize(oSock,
230.f, //European grid voltage
ArduinoOcpp::FilesystemOpt::Use_Mount_FormatOnFail);
/*
* Integrate OCPP functionality. You can leave out the following part if your EVSE doesn't need it.
*/
setEnergyMeterInput([]() {
//read the energy input register of the EVSE here and return the value in Wh
/*
* Approximated value. Replace with real reading
*/
static ulong lastSampled = millis();
static float energyMeter = 0.f;
if (getTransactionId() > 0)
energyMeter += ((float) (millis() - lastSampled)) * 0.003f; //increase by 0.003Wh per ms (~ 10.8kWh per h)
lastSampled = millis();
return energyMeter;
});//!!!!!!!!!!!!!!!!!!!!!! Added new Energy Meter inputs By Mukesh !!!!!!!!!!!!!!!!!!!!!!!!!!! addMeterValueInput([](){ return 230; }, "Voltage", "V", nullptr, "L1", 1);
addMeterValueInput([] () {
return (int32_t) 16;
},
"Current.import",
"A");
addMeterValueInput([] () {
return (int32_t) 25;
},
"Temperature",
"Celsius");
addMeterValueInput([] () {
return (int32_t) 25;
},
"SoC",
"Percent");//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! /*
Integrate OCPP functionality. You can leave out the following part if your EVSE doesn't need it. / setPowerMeterInput([]() { //read the energy input register of the EVSE here and return the value in W /
setSmartChargingOutput([](float limit) { //set the SAE J1772 Control Pilot value here const float voltage = 230.f; // European grid const uint nPhases = 1; //one, two or three phase charging float amps = limit / (voltage * (float) nPhases); if (amps > 51.f) amps = 51.f;
PRINTF("[main] Smart Charging allows maximum charge rate: %iW; convert to Control Pilot amerage: %.2fA\n", (int) limit, amps);
int pwmVal;
if (amps < 6.f) {
pwmVal = 256; // = constant +3.3V DC
} else {
pwmVal = (int) (4.26667f * amps);
} ledcWrite(AMPERAGE_PIN, pwmVal); analogWrite(AMPERAGE_PIN, pwmVal);});
setEvReadyInput([]() {
//return true if the EV is in state "Ready for charging" (see https://en.wikipedia.org/wiki/SAE_J1772#Control_Pilot)
return digitalRead(EV_CHARGE_PIN) == EV_CHARGING;
});
addErrorCodeInput([] () {
//Uncomment if Ground fault pin is used
//if (digitalRead(EVSE_GROUND_FAULT_PIN) != EVSE_GROUND_CLEAR) {
// return "GroundFault";
//}
return (const char *) nullptr;
});
setOnResetSendConf([] (JsonObject confirmation) {
if (getTransactionId() >= 0)
stopTransaction();
PRINTLN(F("[main] Execute reset command"));
reboot_timestamp = millis();
scheduleReboot = 5000; //reboot will be executed in loop()
booted = false;
});
//... see ArduinoOcpp.h for more settings
/*
* Notify the Central System that this station is ready
*/
auto evseDetailsDoc = std::unique_ptr<DynamicJsonDocument>(new DynamicJsonDocument(
JSON_OBJECT_SIZE(5)
+ 5
+ 5
+ 5));
JsonObject evseDetails = evseDetailsDoc->to<JsonObject>();
evseDetails["chargePointModel"] = "MKB-AC001";
evseDetails["chargePointSerialNumber"] = "12345"; //see https://github.com/OpenEVSE/ESP32_WiFi_V4.x/issues/218
evseDetails["chargePointVendor"] = "TestEV";
evseDetails["firmwareVersion"] = "0.0.1";
evseDetails["meterSerialNumber"] = "0.0.1";
//bootNotification("MKB-AC001", "TestEV Private Limited", [] (JsonObject response) {
bootNotification(std::move(evseDetailsDoc), [](JsonObject response) { //ArduinoOcpp will delete evseDetailsDoc
if (response["status"].as<String>().equals("Accepted")) {
booted = true;
digitalWrite(SERVER_CONNECT_LED, SERVER_CONNECT_ON);
} else {
//Wait for the connection retry
reboot_timestamp = millis();
scheduleReboot = 60000; //wait for 60s until reboot; reboot will be executed in loop()
}
});}
void loop() {
/*
* Do all OCPP stuff (process WebSocket input, send recorded meter values to Central System, etc.)
*/
OCPP_loop();
//NFC reader integration example
if (/* RFID chip detected? */ false) {
const char *idTag = "0123456789A";//"my-id-tag"; //e.g. idTag = RFID.readIdTag(); //Mukesh
authorize(idTag);
}
if (ocppPermitsCharge()) {
//EVSE is in a charging session and charging is permitted by the OCPP server
digitalWrite(OCPP_CHARGE_PERMISSION_PIN, OCPP_CHARGE_PERMITTED);
digitalWrite(CHARGE_PERMISSION_LED, CHARGE_PERMISSION_ON);
} else {
//Charging is not allowed due to OCPP rules
digitalWrite(OCPP_CHARGE_PERMISSION_PIN, OCPP_CHARGE_FORBIDDEN);
digitalWrite(CHARGE_PERMISSION_LED, CHARGE_PERMISSION_OFF);
}
if (scheduleReboot > 0 && millis() - reboot_timestamp >= scheduleReboot) {
ESP.restart();
}
if (!booted) {
return;
}
auto readEvPlugged = digitalRead(EV_PLUG_PIN);
if (evPlugged == EV_UNPLUGGED && readEvPlugged == EV_PLUGGED //transition from unplugged to plugged
&& getTransactionId() < 0 //no transaction yet
&& isOperative()) { //EVSE is in operative mode
PRINTF("In Start Transaction\n\r");
startTransaction("0123456789A");//("my-id-tag"); //Mukesh
} else if (evPlugged == EV_PLUGGED && readEvPlugged == EV_UNPLUGGED //transition from plugged to unplugged
&& getTransactionId() >= 0) { //need to stop transaction
PRINTF("In Stop Transaction\n\r");
stopTransaction();
}
else if( digitalRead(KILL_TRANSACTION_PIN) == KILL_TRANSACTION_ON)
{
PRINTF("In Kill Transaction\n\r");
stopTransaction();
}
evPlugged = readEvPlugged;
//... see ArduinoOcpp.h for more possibilities}
// ### End of the OCPP integration. The following code integrates the // ### WiFi-Manager into this example sketch.
bool runWiFiManager() {
/*
* Initialize WiFi and start captive portal to set connection credentials
*/
WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> ocppUrl = ArduinoOcpp::declareConfiguration<const char *>(
"ocppUrl", "", CONFIGURATION_FN, false, false, true, true);
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> CA_cert = ArduinoOcpp::declareConfiguration<const char *>(
"CA_cert", "", CONFIGURATION_FN, false, false, true, true);
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> httpAuthentication = ArduinoOcpp::declareConfiguration<const char *>(
"httpAuthentication", "", CONFIGURATION_FN, false, false, true, true);
WiFiManager wifiManager;
wifiManager.setTitle("EVSE configuration portal");
wifiManager.setParamsPage(true);
WiFiManagerParameter ocppUrlParam ("ocppUrl", "OCPP 1.6 Server URL + Charge Box ID", *ocppUrl, 150,"placeholder=\"wss://<domain>:<port>/<path>/<chargeBoxId>\"");
wifiManager.addParameter(&ocppUrlParam);
WiFiManagerParameter divider("<div><br/></div>");
wifiManager.addParameter(÷r);
WiFiManagerParameter caCertParam ("caCert", "CA Certificate", "", 1500,"placeholder=\"Paste here or leave blank\"");
wifiManager.addParameter(&caCertParam);
WiFiManagerParameter caCertSavePararm ("<div><label for='caCertSave' style='width: auto;'>Save new CA Certificate</label><input type='checkbox' name='caCertSave' value='1' style='width: auto; margin-left: 10px; vertical-align: middle;'></div>");
wifiManager.addParameter(&caCertSavePararm);
WiFiManagerParameter httpAuthenticationParam ("httpAuthentication", "HTTP-authentication token", "", 150,"placeholder=\"e.g.: aKu0Q4NjMRC9yO3wRo08\"");
wifiManager.addParameter(&httpAuthenticationParam);
WiFiManagerParameter httpAuthenticationSavePararm ("<div><label for='httpAuthenticationSave' style='width: auto;'>Save new HTTP token</label><input type='checkbox' name='httpAuthenticationSave' value='1' style='width: auto; margin-left: 10px; vertical-align: middle;'></div>");
wifiManager.addParameter(&httpAuthenticationSavePararm);
wifiManager.setSaveParamsCallback([&ocppUrlParam, ocppUrl, &wifiManager, CA_cert, &caCertParam, httpAuthentication, &httpAuthenticationParam] () {
String newOcppUrl = String(ocppUrlParam.getValue());
newOcppUrl.trim();
Ocpp_URL newOcppUrlParsed = Ocpp_URL();
if (newOcppUrlParsed.parse(newOcppUrl)) {
//success
*ocppUrl = newOcppUrl.c_str();
}
bool caCertSave = false;
String caCertChangedParam = String ("caCertSave");
if(wifiManager.server->hasArg(caCertChangedParam)) {
String caCertChanged = String(wifiManager.server->arg(caCertChangedParam));
if (caCertChanged.length() > 0) {
caCertSave = caCertChanged.charAt(0) == '1' || caCertChanged.charAt(0) == 't' || caCertChanged.charAt(0) == 'o';
}
}
if (caCertSave) {
*CA_cert = caCertParam.getValue();
}
bool httpAuthenticationSave = false;
String authChangedParam = String ("httpAuthenticationSave");
if(wifiManager.server->hasArg(authChangedParam)) {
String authChanged = String(wifiManager.server->arg(authChangedParam));
if (authChanged.length() > 0) {
httpAuthenticationSave = authChanged.charAt(0) == '1' || authChanged.charAt(0) == 't' || authChanged.charAt(0) == 'o';
}
}
if (httpAuthenticationSave) {
*httpAuthentication = httpAuthenticationParam.getValue();
}
ArduinoOcpp::configuration_save();
});
wifiManager.setDarkMode(true);
//wifiManager.setConfigPortalTimeout(CAPATITIVE_PORTAL_TIMEOUT / 1000); //if nobody logs in to the portal, continue after timeout
wifiManager.setTimeout(CAPTIVE_PORTAL_TIMEOUT); //if nobody logs in to the portal, continue after timeout
wifiManager.setConnectTimeout(WIFI_CONNECTION_TIMEOUT);
//wifiManager.setSaveConnect(true);
wifiManager.setAPClientCheck(true); // avoid timeout if client connected to softap
PRINTLN(F("[main] Start capatitive portal"));
if (wifiManager.startConfigPortal("EVSE-Config", "evse1234")) {
return true;
} else {
return wifiManager.autoConnect("EVSE-Config", "evse1234");
}}
bool Ocpp_URL::parse(String &ocppUrl) { String inputUrl = String(ocppUrl); // wss://host.com:433/path inputUrl.trim();
if (ocppUrl.isEmpty()) {
return false;
}
url = inputUrl;
inputUrl.toLowerCase();
if (inputUrl.startsWith("wss://")) {
isTLS = true;
port = 443;
} else if (inputUrl.startsWith("ws://")) {
isTLS = false;
port = 80;
} else {
return false;
}
inputUrl = inputUrl.substring(inputUrl.indexOf("://") + strlen("://")); // host.com:433/path
if (inputUrl.isEmpty()) {
return false;
}
host = String('\0');
for (uint i = 0; i < inputUrl.length(); i++) {
if (inputUrl.charAt(i) == ':') { //case host.com:433/path
host = inputUrl.substring(0, i);
uint16_t inputPort = 0;
for (unsigned int j = i + 1; j < inputUrl.length(); j++) {
if (isDigit(inputUrl.charAt(j))) {
inputPort *= (uint16_t) 10;
inputPort += inputUrl.charAt(j) - '0';
} else {
break;
}
}
if (inputPort > 0) {
port = inputPort;
}
break;
} else if (inputUrl.charAt(i) == '/') { //case host.com/path
host = inputUrl.substring(0, i);
break;
}
}
if (host.isEmpty()) {
host = inputUrl;
}
return true;} `
Fareed99
commented
1 year ago @matth-x @piyush9999 I followed the above discussion to implement multiple connectors. Is there a way to call startTransaction and stopTransaction functions for a specific connector? I'm aware the connectorId can be chosen from RemoteStartTransaction and RemoteStopTransaction but is there a way to do it with startTransaction and stopTransaction?
piyush9999
commented
1 year ago Hello @Fareed99 you can try by giving a separate IDTAG, this should work
Fareed99
commented
1 year ago Hey @piyush9999 thanks for your reply. startTransaction and stopTransaction do not have the connectorId paramter. So whenever I call startTransaction, it starts a transaction on connector 1 but I also need to be able to start and stop transactions on connectors 2 and onwards. @piyush9999 @matth-x Please shed some light on this, I would be grateful. Thanks!
Navjot0005
commented
1 year ago @matth-x Hi hope you are good. I am working on this lib and everything is ok till now. However, I want to send the RFID to Steve pls can you or anyone tell me how can I do this??
piyush9999
commented
1 year ago `if (/ RFID chip detected? / false) { String idTag = "0123456789ABCD"; //e.g. idTag = RFID.readIdTag();
if (!getTransaction()) {
//no transaction running or preparing. Begin a new transaction
Serial.printf("[main] Begin Transaction with idTag %s\n", idTag.c_str());
/*
* Begin Transaction. The OCPP lib will prepare transaction by checking the Authorization
* and listen to the ConnectorPlugged Input. When the Authorization succeeds and an EV
* is plugged, the OCPP lib will send the StartTransaction
*/
auto ret = beginTransaction(idTag.c_str());
if (ret) {
Serial.println(F("[main] Transaction initiated. OCPP lib will send a StartTransaction when" \
"ConnectorPlugged Input becomes true and if the Authorization succeeds"));
} else {
Serial.println(F("[main] No transaction initiated"));
}` After reading the tag i.e idTag it will compare the tag you added on the server,
Navjot0005
commented
1 year ago Thanks for the help @piyush9999 .. Right now I am reading the tag and then copying this to the 32-bit variable. but the thing is I could not send the read id tag to Steve. Will it send the "idTag = "0123456789ABCD"; to the steve server ?? Or how Can I send the RFID tag to steve?? Thanks for reply.
piyush9999
commented
1 year ago Don't send 0123456789ABCD, add the rfid to the server first, for more comfort make it as parent idtag, make String idtag = RFID.readIdTag();
Navjot0005
commented
1 year ago Hi @piyush9999. Thanks again for guiding. Actually Can you tell me how I can send the value because in my case it is required to send the read rfid tag to steve. Also one thing more I want to add in this. Like if load not connected then it send reject msg to steve and relays gets off.
Hello All, I am able to work with my CMS and geting the Energy (Wh) and the Power while charging. I need to Add More parameters in the meter reading like SOC, Voltage, Current and temperature, etc. Need the know how I can add these to the code. If any document or example is available or any guidance on how I can add that will be great.