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Feature: set Huawei offline parameters via MQTT (#315)
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* Add Huawei offline parameters via MQTT

* Update README.md

Correction of the docu

* Update MQTT_Topics.md

Correction of the docu
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@Phantomias2006
Phantomias2006 authored Jul 18, 2023
1 parent 0dd1566 commit a7da000
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2 changes: 2 additions & 0 deletions README.md
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Expand Up @@ -187,6 +187,8 @@ Topics for 3 phases of a power meter is configurable. Given is an example for th
| --------------------------------------- | ----- | ---------------------------------------------------- | -------------------------- |
| huawei/cmd/limit_online_voltage | W | Online voltage (i.e. CAN bus connected) | Volt (V) |
| huawei/cmd/limit_online_current | W | Online current (i.e. CAN bus connected) | Ampere (A) |
| huawei/cmd/limit_offline_voltage | W | Offline voltage (i.e. CAN bus not connected) | Volt (V) |
| huawei/cmd/limit_offline_current | W | Offline current (i.e. CAN bus not connected) | Ampere (A) |
| huawei/cmd/power | W | Controls output pin GPIO to drive solid state relais | 0 / 1 |
| huawei/data_age | R | How old the data is | Seconds |
| huawei/input_voltage | R | Input voltage | Volt (V) |
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2 changes: 2 additions & 0 deletions docs/MQTT_Topics.md
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Expand Up @@ -158,6 +158,8 @@ cmd topics are used to set values. Status topics are updated from values set in
| --------------------------------------- | ----- | ---------------------------------------------------- | -------------------------- |
| huawei/cmd/limit_online_voltage | W | Online voltage (i.e. CAN bus connected) | Volt (V) |
| huawei/cmd/limit_online_current | W | Online current (i.e. CAN bus connected) | Ampere (A) |
| huawei/cmd/limit_offline_voltage | W | Offline voltage (i.e. CAN bus not connected) | Volt (V) |
| huawei/cmd/limit_offline_current | W | Offline current (i.e. CAN bus not connected) | Ampere (A) |
| huawei/cmd/mode | W | Controls GPIO output pin to switch slot detect | 0 (off) / 1 (on) / 2 (set automatically depending on online_current value) / 3 (set automatically based on Power Meter reading ) |
| huawei/data_age | R | How old the data is | Seconds |
| huawei/input_voltage | R | Input voltage | Volt (V) |
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24 changes: 21 additions & 3 deletions src/MqttHandleHuawei.cpp
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Expand Up @@ -12,6 +12,8 @@

#define TOPIC_SUB_LIMIT_ONLINE_VOLTAGE "limit_online_voltage"
#define TOPIC_SUB_LIMIT_ONLINE_CURRENT "limit_online_current"
#define TOPIC_SUB_LIMIT_OFFLINE_VOLTAGE "limit_offline_voltage"
#define TOPIC_SUB_LIMIT_OFFLINE_CURRENT "limit_offline_current"
#define TOPIC_SUB_MODE "mode"

MqttHandleHuaweiClass MqttHandleHuawei;
Expand All @@ -28,6 +30,8 @@ void MqttHandleHuaweiClass::init()
String topic = MqttSettings.getPrefix();
MqttSettings.subscribe(String(topic + "huawei/cmd/" + TOPIC_SUB_LIMIT_ONLINE_VOLTAGE).c_str(), 0, std::bind(&MqttHandleHuaweiClass::onMqttMessage, this, _1, _2, _3, _4, _5, _6));
MqttSettings.subscribe(String(topic + "huawei/cmd/" + TOPIC_SUB_LIMIT_ONLINE_CURRENT).c_str(), 0, std::bind(&MqttHandleHuaweiClass::onMqttMessage, this, _1, _2, _3, _4, _5, _6));
MqttSettings.subscribe(String(topic + "huawei/cmd/" + TOPIC_SUB_LIMIT_OFFLINE_VOLTAGE).c_str(), 0, std::bind(&MqttHandleHuaweiClass::onMqttMessage, this, _1, _2, _3, _4, _5, _6));
MqttSettings.subscribe(String(topic + "huawei/cmd/" + TOPIC_SUB_LIMIT_OFFLINE_CURRENT).c_str(), 0, std::bind(&MqttHandleHuaweiClass::onMqttMessage, this, _1, _2, _3, _4, _5, _6));
MqttSettings.subscribe(String(topic + "huawei/cmd/" + TOPIC_SUB_MODE).c_str(), 0, std::bind(&MqttHandleHuaweiClass::onMqttMessage, this, _1, _2, _3, _4, _5, _6));

_lastPublish = millis();
Expand Down Expand Up @@ -104,24 +108,38 @@ void MqttHandleHuaweiClass::onMqttMessage(const espMqttClientTypes::MessagePrope
MessageOutput.printf("Limit Voltage: %f V\r\n", payload_val);
HuaweiCan.setValue(payload_val, HUAWEI_ONLINE_VOLTAGE);

} else if (!strcmp(setting, TOPIC_SUB_LIMIT_OFFLINE_VOLTAGE)) {
// Set current limit
MessageOutput.printf("Offline Limit Voltage: %f V\r\n", payload_val);
HuaweiCan.setValue(payload_val, HUAWEI_OFFLINE_VOLTAGE);

} else if (!strcmp(setting, TOPIC_SUB_LIMIT_ONLINE_CURRENT)) {
// Set current limit
MessageOutput.printf("Limit Current: %f A\r\n", payload_val);
HuaweiCan.setValue(payload_val, HUAWEI_ONLINE_CURRENT);

} else if (!strcmp(setting, TOPIC_SUB_LIMIT_OFFLINE_CURRENT)) {
// Set current limit
MessageOutput.printf("Offline Limit Current: %f A\r\n", payload_val);
HuaweiCan.setValue(payload_val, HUAWEI_OFFLINE_CURRENT);

} else if (!strcmp(setting, TOPIC_SUB_MODE)) {
// Control power on/off
if(payload_val == 3) {
MessageOutput.println("[Huawei MQTT::] Received MQTT msg. New mode: Full internal control");
HuaweiCan.setMode(HUAWEI_MODE_AUTO_INT);
}
}

if(payload_val == 2) {
MessageOutput.println("[Huawei MQTT::] Received MQTT msg. New mode: Internal on/off control, external power limit");
HuaweiCan.setMode(HUAWEI_MODE_AUTO_EXT);
}
}

if(payload_val == 1) {
MessageOutput.println("[Huawei MQTT::] Received MQTT msg. New mode: Turned ON");
HuaweiCan.setMode(HUAWEI_MODE_ON);
}
}

if(payload_val == 0) {
MessageOutput.println("[Huawei MQTT::] Received MQTT msg. New mode: Turned OFF");
HuaweiCan.setMode(HUAWEI_MODE_OFF);
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