diff --git a/src/devices/boiler.cpp b/src/devices/boiler.cpp
index ac183af9c..031b74333 100644
--- a/src/devices/boiler.cpp
+++ b/src/devices/boiler.cpp
@@ -49,8 +49,9 @@ Boiler::Boiler(uint8_t device_type, int8_t device_id, uint8_t product_id, const
     LOG_DEBUG(F("Registering new Boiler with device ID 0x%02X"), device_id);
 
     // the telegram handlers...
-    register_telegram_type(0x10, F("UBAErrorMessage1"), false, nullptr);
-    register_telegram_type(0x11, F("UBAErrorMessage2"), false, nullptr);
+    register_telegram_type(0x10, F("UBAErrorMessage1"), false, std::bind(&Boiler::process_UBAErrorMessage, this, _1));
+    register_telegram_type(0x11, F("UBAErrorMessage2"), false, std::bind(&Boiler::process_UBAErrorMessage, this, _1));
+    register_telegram_type(0x12, F("UBAErrorMessage3"), false, std::bind(&Boiler::process_UBAErrorMessage, this, _1));
     register_telegram_type(0x18, F("UBAMonitorFast"), false, std::bind(&Boiler::process_UBAMonitorFast, this, _1));
     register_telegram_type(0x19, F("UBAMonitorSlow"), true, std::bind(&Boiler::process_UBAMonitorSlow, this, _1));
     register_telegram_type(0x34, F("UBAMonitorWW"), false, std::bind(&Boiler::process_UBAMonitorWW, this, _1));
@@ -679,6 +680,12 @@ void Boiler::process_UBAMaintenanceStatus(std::shared_ptr<const Telegram> telegr
 void Boiler::process_UBAMaintenanceSettings(std::shared_ptr<const Telegram> telegram) {
 }
 
+// 0x10, 0x11, 0x12 
+// not yet implemented
+void Boiler::process_UBAErrorMessage(std::shared_ptr<const Telegram> telegram) {
+    // data: displaycode(2), errornumner(2), year, month, hour, day, minute, duration(2), src-addr
+}
+
 #pragma GCC diagnostic pop
 
 // Set the warm water temperature 0x33
diff --git a/src/devices/boiler.h b/src/devices/boiler.h
index 3c15da307..9dc36c8c3 100644
--- a/src/devices/boiler.h
+++ b/src/devices/boiler.h
@@ -141,6 +141,7 @@ class Boiler : public EMSdevice {
     void process_MC10Status(std::shared_ptr<const Telegram> telegram);
     void process_UBAMaintenanceStatus(std::shared_ptr<const Telegram> telegram);
     void process_UBAMaintenanceSettings(std::shared_ptr<const Telegram> telegram);
+    void process_UBAErrorMessage(std::shared_ptr<const Telegram> telegram);
 
     void process_UBADHWStatus(std::shared_ptr<const Telegram> telegram);
     void process_HPMonitor1(std::shared_ptr<const Telegram> telegram);
diff --git a/src/devices/mixing.cpp b/src/devices/mixing.cpp
index c6a97080a..1ef7dd385 100644
--- a/src/devices/mixing.cpp
+++ b/src/devices/mixing.cpp
@@ -40,9 +40,9 @@ Mixing::Mixing(uint8_t device_type, uint8_t device_id, uint8_t product_id, const
     }
     // EMS 1.0
     if (flags == EMSdevice::EMS_DEVICE_FLAG_MM10) {
-        register_telegram_type(0x00AA, F("MMConfigMessage"), false, nullptr);
+        register_telegram_type(0x00AA, F("MMConfigMessage"), false, std::bind(&Mixing::process_MMConfigMessage, this, _1));
         register_telegram_type(0x00AB, F("MMStatusMessage"), true, std::bind(&Mixing::process_MMStatusMessage, this, _1));
-        register_telegram_type(0x00AC, F("MMSetMessage"), false, nullptr);
+        register_telegram_type(0x00AC, F("MMSetMessage"), false, std::bind(&Mixing::process_MMSetMessage, this, _1));
     }
 
     // MQTT callbacks
@@ -131,8 +131,9 @@ void Mixing::process_MMPLUSStatusMessage_HC(std::shared_ptr<const Telegram> tele
     type_ = Type::HC;
     hc_   = telegram->type_id - 0x02D7 + 1; // determine which circuit this is
     telegram->read_value(flowTemp_, 3);     // is * 10
-    telegram->read_value(pumpMod_, 5);
-    telegram->read_value(status_, 2); // valve status
+    telegram->read_value(flowSetTemp_, 5);
+    telegram->read_value(pumpMod_, 2);
+    telegram->read_value(status_, 1); // valve status
 }
 
 // Mixing module warm water loading/DHW - 0x0331, 0x0332
@@ -161,4 +162,19 @@ void Mixing::process_MMStatusMessage(std::shared_ptr<const Telegram> telegram) {
     telegram->read_value(flowSetTemp_, 0);
 }
 
+// Mixing on a MM10 - 0xAA
+// e.g. Thermostat -> Mixing Module, type 0xAA, telegram: 10 21 AA 00 FF 0C 0A 11 0A 32 xx
+void Mixing::process_MMConfigMessage(std::shared_ptr<const Telegram> telegram) {
+    hc_ = device_id() - 0x20 + 1;
+    // pos 0: active FF = on
+    // pos 1: valve runtime 0C = 120 sec in units of 10 sec
+}
+// Mixing on a MM10 - 0xAC
+// e.g. Thermostat -> Mixing Module, type 0xAC, telegram: 10 21 AC 00 1E 64 01 AB
+void Mixing::process_MMSetMessage(std::shared_ptr<const Telegram> telegram) {
+    hc_ = device_id() - 0x20 + 1;
+    // pos 0: flowtemp setpoint 1E = 30°C
+    // pos 1: position in %
+}
+
 } // namespace emsesp
\ No newline at end of file
diff --git a/src/devices/mixing.h b/src/devices/mixing.h
index d81443b7f..ca9e4308c 100644
--- a/src/devices/mixing.h
+++ b/src/devices/mixing.h
@@ -49,6 +49,8 @@ class Mixing : public EMSdevice {
     void process_MMPLUSStatusMessage_HC(std::shared_ptr<const Telegram> telegram);
     void process_MMPLUSStatusMessage_WWC(std::shared_ptr<const Telegram> telegram);
     void process_MMStatusMessage(std::shared_ptr<const Telegram> telegram);
+    void process_MMConfigMessage(std::shared_ptr<const Telegram> telegram);
+    void process_MMSetMessage(std::shared_ptr<const Telegram> telegram);
 
     enum class Type {
         NONE,
diff --git a/src/devices/solar.cpp b/src/devices/solar.cpp
index 65a3b8af9..b0c349073 100644
--- a/src/devices/solar.cpp
+++ b/src/devices/solar.cpp
@@ -37,9 +37,9 @@ Solar::Solar(uint8_t device_type, uint8_t device_id, uint8_t product_id, const s
     register_telegram_type(0x0362, F("SM100Monitor"), true, std::bind(&Solar::process_SM100Monitor, this, _1));
     register_telegram_type(0x0364, F("SM100Status"), false, std::bind(&Solar::process_SM100Status, this, _1));
     register_telegram_type(0x036A, F("SM100Status2"), false, std::bind(&Solar::process_SM100Status2, this, _1));
-    register_telegram_type(0x038E, F("SM100Energy"), false, std::bind(&Solar::process_SM100Energy, this, _1));
-    register_telegram_type(0x0003, F("ISM1StatusMessage"), true, std::bind(&Solar::process_ISM1StatusMessage, this, _1));
-    register_telegram_type(0x0001, F("ISM1Set"), false, std::bind(&Solar::process_ISM1Set, this, _1));
+    register_telegram_type(0x038E, F("SM100Energy"), true, std::bind(&Solar::process_SM100Energy, this, _1));
+    register_telegram_type(0x0103, F("ISM1StatusMessage"), true, std::bind(&Solar::process_ISM1StatusMessage, this, _1));
+    register_telegram_type(0x0101, F("ISM1Set"), false, std::bind(&Solar::process_ISM1Set, this, _1));
 
     // MQTT callbacks
     // register_mqtt_topic("cmd", std::bind(&Solar::cmd, this, _1));
@@ -130,10 +130,11 @@ void Solar::process_SM10Monitor(std::shared_ptr<const Telegram> telegram) {
     telegram->read_value(bottomTemp_, 5);     // bottom temp from SM10, is *10
     telegram->read_value(pumpModulation_, 4); // modulation solar pump
     telegram->read_value(pump_, 7, 1);
+    telegram->read_value(pumpWorkMin_, 8);
 }
 
 /*
- * SM100Monitor - type 0x0162 EMS+ - for SM100 and SM200
+ * SM100Monitor - type 0x0262 EMS+ - for SM100 and SM200
  * e.g. B0 0B FF 00 02 62 00 44 02 7A 80 00 80 00 80 00 80 00 80 00 80 00 00 7C 80 00 80 00 80 00 80
  * e.g, 30 00 FF 00 02 62 01 AC
  *      30 00 FF 18 02 62 80 00
diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index b5152bd50..f50e29927 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -31,7 +31,6 @@ MAKE_PSTR(master_thermostat_fmt, "Master Thermostat device ID = %s")
 namespace emsesp {
 
 REGISTER_FACTORY(Thermostat, EMSdevice::DeviceType::THERMOSTAT);
-
 MAKE_PSTR(logger_name, "thermostat")
 uuid::log::Logger Thermostat::logger_{F_(logger_name), uuid::log::Facility::CONSOLE};
 
@@ -239,7 +238,6 @@ void Thermostat::thermostat_cmd(const char * message) {
         strlcpy(hc_name, "hc", 6);
         uint8_t hc_num = hc->hc_num();
         strlcat(hc_name, Helpers::itoa(s, hc_num), 6);
-
         if (nullptr != doc[hc_name]["mode"]) {
             std::string mode = doc[hc_name]["mode"]; // first check mode
             set_mode(mode, hc_num);
@@ -279,29 +277,29 @@ void Thermostat::thermostat_cmd(const char * message) {
             uint8_t ctrl = doc[hc_name]["control"];
             set_control(ctrl, hc_num);
         }
-        if (float ct = doc["calinttemp"]) {
-            set_settings_calinttemp((int8_t)(ct * 10));
-        }
-        if (nullptr != doc["minexttemp"]) {
-            int8_t mt = doc["minexttemp"];
-            set_settings_minexttemp(mt);
-        }
-        if (nullptr != doc["building"]) {
-            uint8_t bd = doc["building"];
-            set_settings_building(bd);
-        }
-        if (nullptr != doc["language"]) {
-            uint8_t lg = doc["language"];
-            set_settings_language(lg);
-        }
-        if (nullptr != doc["display"]) {
-            uint8_t dp = doc["display"];
-            set_settings_display(dp);
-        }
-        if (nullptr != doc["clockoffset"]) {
-            int8_t co = doc["clockoffset"];
-            set_settings_clockoffset(co);
-        }
+    }
+    if (float ct = doc["calinttemp"]) {
+        set_settings_calinttemp((int8_t)(ct * 10));
+    }
+    if (nullptr != doc["minexttemp"]) {
+        int8_t mt = doc["minexttemp"];
+        set_settings_minexttemp(mt);
+    }
+    if (nullptr != doc["building"]) {
+        uint8_t bd = doc["building"];
+        set_settings_building(bd);
+    }
+    if (nullptr != doc["language"]) {
+        uint8_t lg = doc["language"];
+        set_settings_language(lg);
+    }
+    if (nullptr != doc["display"]) {
+        uint8_t dp = doc["display"];
+        set_settings_display(dp);
+    }
+    if (nullptr != doc["clockoffset"]) {
+        int8_t co = doc["clockoffset"];
+        set_settings_clockoffset(co);
     }
 
     const char * command = doc["cmd"];
@@ -1023,17 +1021,17 @@ void Thermostat::process_JunkersMonitor(std::shared_ptr<const Telegram> telegram
 
 // type 0x02A5 - data from the Nefit RC1010/3000 thermostat (0x18) and RC300/310s on 0x10
 void Thermostat::process_RC300Monitor(std::shared_ptr<const Telegram> telegram) {
+    if (telegram->message_data[2] == 0x00) {
+        return;
+    }
     std::shared_ptr<Thermostat::HeatingCircuit> hc = heating_circuit(telegram);
-
     telegram->read_value(hc->curr_roomTemp, 0); // is * 10
     telegram->read_value(hc->mode_type, 10, 1);
     telegram->read_value(hc->mode, 10, 0); // bit 1, mode (auto=1 or manual=0)
 
     // setpoint is in offset 3 and also 7. We're sticking to 3 for now.
     // also ignore if its 0 - see https://github.com/proddy/EMS-ESP/issues/256#issuecomment-585171426
-    if (telegram->message_data[3] != 0) {
-        telegram->read_value8(hc->setpoint_roomTemp, 3); // is * 2, force as single byte
-    }
+    telegram->read_value8(hc->setpoint_roomTemp, 3); // is * 2, force as single byte
 }
 
 // type 0x02B9 EMS+ for reading from RC300/RC310 thermostat
@@ -1044,11 +1042,12 @@ void Thermostat::process_RC300Set(std::shared_ptr<const Telegram> telegram) {
     // manual is position 10
     // comfort is position 2
     // I think auto is position 8?
-    telegram->read_value8(hc->setpoint_roomTemp, 8);  // single byte conversion, value is * 2 - auto?
-    telegram->read_value8(hc->setpoint_roomTemp, 10); // single byte conversion, value is * 2 - manual
+    // actual setpoint taken from RC300Monitor (Michael 12.06.2020) 
+    // telegram->read_value8(hc->setpoint_roomTemp, 8);  // single byte conversion, value is * 2 - auto?
+    // telegram->read_value8(hc->setpoint_roomTemp, 10); // single byte conversion, value is * 2 - manual
 
     // check why mode is both in the Monitor and Set for the RC300. It'll be read twice!
-    telegram->read_value(hc->mode, 0); // Auto = xFF, Manual = x00 eg. 10 00 FF 08 01 B9 FF
+    // telegram->read_value(hc->mode, 0); // Auto = xFF, Manual = x00 eg. 10 00 FF 08 01 B9 FF
 
     telegram->read_value(hc->daytemp, 2);   // is * 2
     telegram->read_value(hc->nighttemp, 4); // is * 2
@@ -1182,7 +1181,7 @@ void Thermostat::set_settings_building(const uint8_t bg) {
 // 0xA5 Set the language settings
 void Thermostat::set_settings_language(const uint8_t lg) {
     if ((flags() & 0x0F) == EMS_DEVICE_FLAG_RC30_1) {
-        LOG_INFO(F("Setting building to %d"), lg);
+        LOG_INFO(F("Setting language to %d"), lg);
         write_command(EMS_TYPE_IBASettings, 1, lg);
     }
 }
@@ -1199,8 +1198,10 @@ void Thermostat::set_control(const uint8_t ctrl, const uint8_t hc_num) {
         return;
     }
     if ((flags() & 0x0F) == EMS_DEVICE_FLAG_RC35 || (flags() & 0x0F) == EMS_DEVICE_FLAG_RC30_1) {
-        LOG_INFO(F("Setting Circuit-control for hc%d to %d"), hc_num, ctrl);
+        LOG_INFO(F("Setting circuit-control for hc%d to %d"), hc_num, ctrl);
         write_command(set_typeids[hc->hc_num() - 1], 26, ctrl);
+    } else {
+        LOG_INFO(F("Setting circuit-control not possible"));
     }
 }
 
diff --git a/src/devices/thermostat.h b/src/devices/thermostat.h
index 65852f345..455418339 100644
--- a/src/devices/thermostat.h
+++ b/src/devices/thermostat.h
@@ -29,7 +29,6 @@
 #include "emsesp.h"
 #include "helpers.h"
 #include "mqtt.h"
-#include "roomcontrol.h"
 
 #include <vector>
 
diff --git a/src/emsesp.cpp b/src/emsesp.cpp
index 422f92c21..4152eaf71 100644
--- a/src/emsesp.cpp
+++ b/src/emsesp.cpp
@@ -728,8 +728,8 @@ void EMSESP::console_commands(Shell & shell, unsigned int context) {
         flash_string_vector{F_(set), F_(tx_mode)},
         flash_string_vector{F_(n_mandatory)},
         [](Shell & shell, const std::vector<std::string> & arguments) {
-            uint8_t tx_mode = (arguments[0]).at(0) - '0';
-            if ((tx_mode > 0) && (tx_mode <= 4)) {
+            uint8_t tx_mode = std::strtol(arguments[0].c_str(), nullptr, 10);
+            if ((tx_mode > 0) && (tx_mode <= 30)) {
                 Settings settings;
                 settings.ems_tx_mode(tx_mode);
                 settings.commit();
diff --git a/src/devices/helpers.cpp b/src/helpers.cpp
similarity index 99%
rename from src/devices/helpers.cpp
rename to src/helpers.cpp
index c0c176559..ae83cd0b6 100644
--- a/src/devices/helpers.cpp
+++ b/src/helpers.cpp
@@ -233,7 +233,7 @@ char * Helpers::render_value(char * result, const uint32_t value, const uint8_t
         strlcat(result, ltoa(value, s, 10), 20);
     } else {
         strlcat(result, ltoa(value / format, s, 10), 20);
-        strlcat(result, ".", 2);
+        strlcat(result, ".", 20);
         strlcat(result, ltoa(value % format, s, 10), 20);
     }
 
diff --git a/src/roomcontrol.cpp b/src/roomcontrol.cpp
index 12f08be15..e5af386dc 100644
--- a/src/roomcontrol.cpp
+++ b/src/roomcontrol.cpp
@@ -20,21 +20,23 @@
 
 namespace emsesp {
 
-uint32_t rc_time_      = 0;
-uint16_t hc_           = EMS_VALUE_USHORT_NOTSET;
-int16_t  remotetemp[4] = {EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET};
+static uint32_t rc_time_      = 0;
+static int16_t  remotetemp[4] = {EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET, EMS_VALUE_SHORT_NOTSET};
 
 /**
  * set the temperature,
  */
-void Roomctrl::set_remotetemp(uint8_t hc, int16_t temp) {
+void Roomctrl::set_remotetemp(const uint8_t hc, const int16_t temp) {
+    if (hc > 3) {
+        return;
+    }
     remotetemp[hc] = temp;
 }
 
 /**
  * if remote control is active send the temperature every minute
  */
-void Roomctrl::send(uint8_t addr) {
+void Roomctrl::send(const uint8_t addr) {
     uint8_t hc_ = addr - ADDR;
     // check address, reply only on addresses 0x18..0x1B
     if (hc_ > 3) {
@@ -48,7 +50,7 @@ void Roomctrl::send(uint8_t addr) {
         rc_time_ = uuid::get_uptime();                   // use EMS-ESP's millis() to prevent overhead
         temperature(addr, 0x00);                         // send to all
     } else {
-        // acknowledge every poll, otherwise the master shows error A11-822
+        // acknowledge every poll, otherwise the master shows error A22-816
         EMSuart::send_poll(addr);
     }
 }
@@ -56,19 +58,22 @@ void Roomctrl::send(uint8_t addr) {
 /**
  * check if there is a message for the remote room controller
  */
-void Roomctrl::check(uint8_t addr, uint8_t * data) {
-    uint8_t hc_num = addr - ADDR;
+void Roomctrl::check(const uint8_t addr, const uint8_t * data) {
+    uint8_t hc_ = (addr & 0x7F) - ADDR;
 
     // check address, reply only on addresses 0x18..0x1B
-    if (hc_num > 3) {
+    if (hc_ > 3) {
         return;
     }
-
     // no reply if the temperature is not set
-    if (remotetemp[hc_num] == EMS_VALUE_SHORT_NOTSET) {
+    if (remotetemp[hc_] == EMS_VALUE_SHORT_NOTSET) {
+        return;
+    }
+    // reply to writes with write nack byte   
+    if(addr & 0x80) { // it's a write to us
+        nack_write(); // we don't accept writes.
         return;
     }
-
     // for now we only reply to version and remote temperature
     if (data[2] == 0x02) {
         version(addr, data[0]);
@@ -124,5 +129,13 @@ void Roomctrl::temperature(uint8_t addr, uint8_t dst) {
     data[7]     = EMSbus::calculate_crc(data, 7); // apppend CRC
     EMSuart::transmit(data, 8);
 }
+/**
+ * send a nack if someone want to write to us.
+ */
+void Roomctrl::nack_write() {
+    uint8_t data[1];
+    data[0] = TxService::TX_WRITE_FAIL;
+    EMSuart::transmit(data, 1);
+}
 
 } // namespace emsesp
diff --git a/src/roomcontrol.h b/src/roomcontrol.h
index b4917173a..47f66654c 100644
--- a/src/roomcontrol.h
+++ b/src/roomcontrol.h
@@ -20,17 +20,14 @@
 #define EMSESP_ROOMCONTROL_H
 
 #include "emsesp.h"
-#include "telegram.h"
-#include "uart/emsuart_esp8266.h"
-#include "uart/emsuart_esp32.h"
 
 namespace emsesp {
 
 class Roomctrl {
   public:
-    static void send(uint8_t addr);
-    static void check(uint8_t addr, uint8_t * data);
-    static void set_remotetemp(uint8_t hc, int16_t temp);
+    static void send(const uint8_t addr);
+    static void check(const uint8_t addr, const uint8_t * data);
+    static void set_remotetemp(const uint8_t hc, const int16_t temp);
 
   private:
     static constexpr uint8_t  ADDR          = 0x18;
@@ -39,6 +36,8 @@ class Roomctrl {
     static void version(uint8_t addr, uint8_t dst);
     static void unknown(uint8_t addr, uint8_t dst, uint8_t type, uint8_t offset);
     static void temperature(uint8_t addr, uint8_t dst);
+    static void nack_write();
+
 };
 
 } // namespace emsesp
diff --git a/src/system.cpp b/src/system.cpp
index 4b4c07aec..f21d7a668 100644
--- a/src/system.cpp
+++ b/src/system.cpp
@@ -62,23 +62,72 @@ void System::mqtt_commands(const char * message) {
         LOG_DEBUG(F("MQTT error: payload %s, error %s"), message, error.c_str());
         return;
     }
+
+    // restart EMS-ESP
+    if (strcmp(message, "restart") == 0) {
+        LOG_INFO(F("Restart command received"));
+        restart();
+    }
+
+    if (doc["send"] != nullptr) {
+        const char * data = doc["send"];
+        EMSESP::send_raw_telegram(data);
+        LOG_INFO(F("Sending raw: %s"),data);
+
+    }
+
+#if defined(ESP8266)
+    const uint8_t d0_ = 16;
+    const uint8_t d1_ = 5;
+    const uint8_t d2_ = 4;
+    const uint8_t d3_ = 0;
+#elif defined(ESP32)
+    const uint8_t d0_ = 26;
+    const uint8_t d1_ = 22;
+    const uint8_t d2_ = 21;
+    const uint8_t d3_ = 17;
+#endif
+    if(doc["D0"] != nullptr) {
+        const int8_t set = doc["D0"];
+        pinMode(d0_, OUTPUT);
+        if (set == 1) digitalWrite(d0_, HIGH);
+        else if (set == 0) digitalWrite(d0_, LOW);
+        LOG_INFO(F("Port D0 set to %d"),set);
+    }
+    if(doc["D1"] != nullptr) {
+        const int8_t set = doc["D1"];
+        pinMode(d1_, OUTPUT);
+        if (set == 1) digitalWrite(d1_, HIGH);
+        else if (set == 0) digitalWrite(d1_, LOW);
+        LOG_INFO(F("Port D1 set to %d"),set);
+    }
+    if(doc["D2"] != nullptr) {
+        const int8_t set = doc["D2"];
+        pinMode(d2_, OUTPUT);
+        if (set == 1) digitalWrite(d2_, HIGH);
+        else if (set == 0) digitalWrite(d2_, LOW);
+        LOG_INFO(F("Port D2 set to %d"),set);
+    }
+    if(doc["D3"] != nullptr) {
+        const int8_t set = doc["D3"];
+        pinMode(d3_, OUTPUT);
+        if (set == 1) digitalWrite(d3_, HIGH);
+        else if (set == 0) digitalWrite(d3_, LOW);
+        LOG_INFO(F("Port D3 set to %d"),set);
+    }
+
     const char * command = doc["cmd"];
     if (command == nullptr) {
         return;
     }
-
-    // restart EMS-ESP
-    if (strcmp(message, "restart") == 0) {
-        restart();
-    }
-
-    // boiler ww comfort setting
+    // send raw command
     if (strcmp(command, "send") == 0) {
         const char * data = doc["data"];
         if (data == nullptr) {
             return;
         }
         EMSESP::send_raw_telegram(data);
+        LOG_INFO(F("Sending raw: %s"),data);
         return;
     }
 }
diff --git a/src/telegram.cpp b/src/telegram.cpp
index 154b9e892..a393093bc 100644
--- a/src/telegram.cpp
+++ b/src/telegram.cpp
@@ -177,7 +177,7 @@ void Telegram::read_value32(uint32_t & param, const uint8_t index) const {
         return;
     }
 
-    param = (uint32_t)((message_data[pos] << 24) + (message_data[pos] << 16) + (message_data[pos + 1] << 8) + (message_data[pos + 2]));
+    param = (uint32_t)((message_data[pos] << 24) + (message_data[pos + 1] << 16) + (message_data[pos + 2] << 8) + (message_data[pos + 3]));
 }
 
 // bit from an unsigned byte
@@ -290,7 +290,7 @@ void RxService::add(uint8_t * data, uint8_t length) {
             }
         } else {
             // its F9 or F7
-            uint8_t shift = (data[4] != 0xFF); // true (1) if 5th byte is not 0xFF, then telegram is 1 byte longer
+            uint8_t shift = (data[4] != 0xFF) ? 1 : 0; // true (1) if 5th byte is not 0xFF, then telegram is 1 byte longer
             type_id       = (data[5 + shift] << 8) + data[6 + shift] + 256;
             message_data += 6 + shift; // there is a special byte after the typeID which we ignore for now
             if (length > (9 + shift)) {
@@ -468,7 +468,6 @@ void TxService::send_telegram(const QueuedTxTelegram & tx_telegram) {
 
     // send the telegram to the UART Tx
     uint16_t status = EMSuart::transmit(telegram_raw, length);
-
 #ifdef EMSESP_DEBUG
     // if watching in 'raw' mode
     if (EMSESP::watch() == 2) {
@@ -614,6 +613,10 @@ void TxService::remember_tx(const uint8_t * data, const uint8_t length) {
         telegram_last_[i] = data[i];
     }
     telegram_last_length_ = length;
+    if (ems_mask() != EMS_MASK_UNSET) {
+        telegram_last_[0] ^= ems_mask();
+    }
+
 }
 
 // add last Tx to tx queue and increment count
diff --git a/src/uart/emsuart_esp32.cpp b/src/uart/emsuart_esp32.cpp
index c2369217a..091363cec 100644
--- a/src/uart/emsuart_esp32.cpp
+++ b/src/uart/emsuart_esp32.cpp
@@ -30,8 +30,14 @@ namespace emsesp {
 
 static intr_handle_t   uart_handle;
 static RingbufHandle_t buf_handle   = NULL;
-static bool            drop_next_rx = true;
-static uint8_t         tx_mode_     = 0xFF;
+static hw_timer_t *    timer        = NULL;
+bool                   drop_next_rx = true;
+uint8_t                tx_mode_     = 0xFF;
+//portMUX_TYPE           timerMux     = portMUX_INITIALIZER_UNLOCKED;
+uint8_t                emsTxBuf[EMS_MAXBUFFERSIZE];
+uint8_t                emsTxBufIdx;
+uint8_t                emsTxBufLen;
+uint32_t               emsTxWait;
 
 /*
 * Task to handle the incoming data
@@ -73,11 +79,39 @@ void IRAM_ATTR EMSuart::emsuart_rx_intr_handler(void * para) {
         drop_next_rx = false;
     }
 }
+
+
+void IRAM_ATTR EMSuart::emsuart_tx_timer_intr_handler() {
+    if (emsTxBufIdx > 32) {
+        return;
+    }
+    emsTxBufIdx++;
+    if (emsTxBufIdx < emsTxBufLen) {
+        EMS_UART.fifo.rw_byte = emsTxBuf[emsTxBufIdx];
+        timerAlarmWrite(timer, emsTxWait, false);
+        timerAlarmEnable(timer);
+    } else  if (emsTxBufIdx == emsTxBufLen) {
+        EMS_UART.conf0.txd_brk = 1; // <brk> after send
+    }
+}
+
 /*
  * init UART driver
  */
 void EMSuart::start(uint8_t tx_mode) {
+    if (tx_mode == EMS_TXMODE_DEFAULT) {
+        emsTxWait = EMSUART_BIT_TIME * 11;
+    } else if (tx_mode == EMS_TXMODE_EMSPLUS) {
+        emsTxWait = EMSUART_BIT_TIME * 20;
+    } else if (tx_mode == EMS_TXMODE_HT3) {
+        emsTxWait = EMSUART_BIT_TIME * 17;
+    } else if(tx_mode > 10 ) {
+        emsTxWait = EMSUART_BIT_TIME * tx_mode;
+    } else if(tx_mode > 5 ) {
+        emsTxWait = EMSUART_BIT_TIME * tx_mode * 2;
+    }
     if (tx_mode_ != 0xFF) { // uart already initialized
+        tx_mode_ = tx_mode;
         restart();
         return;
     }
@@ -101,6 +135,11 @@ void EMSuart::start(uint8_t tx_mode) {
     ESP_ERROR_CHECK(uart_isr_register(EMSUART_UART, emsuart_rx_intr_handler, NULL, ESP_INTR_FLAG_IRAM, &uart_handle));
     xTaskCreate(emsuart_recvTask, "emsuart_recvTask", 2048, NULL, configMAX_PRIORITIES - 1, NULL);
     EMS_UART.int_ena.brk_det = 1; // activate only break
+
+    emsTxBufIdx = 0;
+    emsTxBufLen = 0;
+    timer = timerBegin(1, 80, true); // timer prescale to 1 µs, countup
+	timerAttachInterrupt(timer, &emsuart_tx_timer_intr_handler, true); // Timer with edge interrupt
 }
 
 /*
@@ -108,6 +147,7 @@ void EMSuart::start(uint8_t tx_mode) {
  */
 void EMSuart::stop() {
     EMS_UART.int_ena.val = 0; // disable all intr.
+	// timerAlarmDisable(timer);
 };
 
 /*
@@ -119,14 +159,24 @@ void EMSuart::restart() {
         drop_next_rx             = true; // and drop first frame
     }
     EMS_UART.int_ena.brk_det = 1; // activate only break
+    emsTxBufIdx = 0;
+    emsTxBufLen = 0;
 };
 
 /*
  * Sends a 1-byte poll, ending with a <BRK>
  */
 void EMSuart::send_poll(uint8_t data) {
-    EMS_UART.fifo.rw_byte  = data;
-    EMS_UART.conf0.txd_brk = 1; // <brk> after send
+    if (tx_mode_ == EMS_TXMODE_NEW || tx_mode_ == 5) {
+        EMS_UART.fifo.rw_byte  = data;
+        EMS_UART.conf0.txd_brk = 1; // <brk> after send
+    } else {
+        EMS_UART.fifo.rw_byte = data;
+        emsTxBufIdx = 0;
+        emsTxBufLen = 1;
+        timerAlarmWrite(timer, emsTxWait, false);
+        timerAlarmEnable(timer);
+    }
 }
 
 /*
@@ -134,12 +184,24 @@ void EMSuart::send_poll(uint8_t data) {
  * buf contains the CRC and len is #bytes including the CRC
  * returns code, 1=success
  */
-EMSUART_STATUS EMSuart::transmit(uint8_t * buf, uint8_t len) {
-    if (len > 0) {
+uint16_t EMSuart::transmit(uint8_t * buf, uint8_t len) {
+    if (len == 0 || len > 32) {
+        return EMS_TX_STATUS_ERROR;
+    }
+    if (tx_mode_ == EMS_TXMODE_NEW || tx_mode_ == 5) {
         for (uint8_t i = 0; i < len; i++) {
             EMS_UART.fifo.rw_byte = buf[i];
         }
         EMS_UART.conf0.txd_brk = 1; // <brk> after send
+    } else {
+        for (uint8_t i = 0; i < len; i++) {
+            emsTxBuf[i] = buf[i];
+        }
+        EMS_UART.fifo.rw_byte = buf[0];
+        emsTxBufIdx = 0;
+        emsTxBufLen = len;
+        timerAlarmWrite(timer, emsTxWait, false);
+        timerAlarmEnable(timer);
     }
     return EMS_TX_STATUS_OK;
 }
diff --git a/src/uart/emsuart_esp32.h b/src/uart/emsuart_esp32.h
index 4a2a9e289..4e958469e 100644
--- a/src/uart/emsuart_esp32.h
+++ b/src/uart/emsuart_esp32.h
@@ -20,6 +20,7 @@
 /*
  * ESP32 UART port by @ArwedL and improved by @MichaelDvP. See https://github.com/proddy/EMS-ESP/issues/380
  */
+#if defined(ESP32)
 
 #ifndef EMSESP_EMSUART_H
 #define EMSESP_EMSUART_H
@@ -37,6 +38,13 @@
 #define EMSUART_UART UART_NUM_2 // on the ESP32 we're using UART2
 #define EMS_UART UART2          // for intr setting
 #define EMSUART_BAUD 9600       // uart baud rate for the EMS circuit
+#define EMSUART_BIT_TIME 104    // bit time @9600 baud
+
+#define EMS_TXMODE_DEFAULT 1
+#define EMS_TXMODE_EMSPLUS 2
+#define EMS_TXMODE_HT3 3
+#define EMS_TXMODE_NEW 4 // for michael's testing
+
 
 // customize the GPIO pins for RX and TX here
 #ifdef WEMOS_D1_32
@@ -49,11 +57,8 @@
 
 namespace emsesp {
 
-typedef enum {
-    EMS_TX_STATUS_OK = 1,
-    EMS_TX_WTD_TIMEOUT, // watchdog timeout during send
-    EMS_TX_BRK_DETECT,  // incoming BRK during Tx
-} EMSUART_STATUS;
+#define EMS_TX_STATUS_OK 1
+#define EMS_TX_STATUS_ERROR 0
 
 class EMSuart {
   public:
@@ -64,13 +69,16 @@ class EMSuart {
     static void           send_poll(uint8_t data);
     static void           stop();
     static void           restart();
-    static EMSUART_STATUS transmit(uint8_t * buf, uint8_t len);
+    static uint16_t       transmit(uint8_t * buf, uint8_t len);
 
   private:
     static void           emsuart_recvTask(void * para);
     static void IRAM_ATTR emsuart_rx_intr_handler(void * para);
+    static void IRAM_ATTR emsuart_tx_timer_intr_handler();
+
 };
 
 } // namespace emsesp
 
 #endif
+#endif
diff --git a/src/uart/emsuart_esp8266.cpp b/src/uart/emsuart_esp8266.cpp
index c3b81a297..d77a77de3 100644
--- a/src/uart/emsuart_esp8266.cpp
+++ b/src/uart/emsuart_esp8266.cpp
@@ -51,10 +51,8 @@ void ICACHE_RAM_ATTR EMSuart::emsuart_rx_intr_handler(void * para) {
 
     if (USIS(EMSUART_UART) & ((1 << UIBD))) { // BREAK detection = End of EMS data block
         USC0(EMSUART_UART) &= ~(1 << UCBRK);  // reset tx-brk
+        // just for testing if break isn't finished yet
         // while((USS(EMSUART_UART) >> USRXD) == 0); // wait for idle state of pin
-        // if((USS(EMSUART_UART) >> USRXD) == 0) { // if rx is not idle wait one bittime
-        //     delayMicroseconds(EMSUART_TX_BIT_TIME);
-        // }
         USIC(EMSUART_UART) = (1 << UIBD); // INT clear the BREAK detect interrupt
         length             = 0;
         while ((USS(EMSUART_UART) >> USRXC) & 0x0FF) { // read fifo into buffer
@@ -116,23 +114,40 @@ void ICACHE_FLASH_ATTR EMSuart::emsuart_flush_fifos() {
 
 // ISR to Fire when Timer is triggered
 void ICACHE_RAM_ATTR EMSuart::emsuart_tx_timer_intr_handler() {
+    if (emsTxBufIdx > 32) {
+        return;
+    }
     emsTxBufIdx++;
     if (emsTxBufIdx < emsTxBufLen) {
         USF(EMSUART_UART) = emsTxBuf[emsTxBufIdx];
         timer1_write(emsTxWait);
     } else if (emsTxBufIdx == emsTxBufLen) {
         USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
-        // timer1_write(emsTxWait);
-        timer1_write(5 * EMSUART_TX_BRK_WAIT);
-    } else {
+        if (tx_mode_ > 5 || tx_mode_ < 11) {
+        timer1_write(5 * EMSUART_TX_BIT_TIME * 11);
+            USIE(EMSUART_UART) &= ~(1 << UIBD); // disable break interrupt
+        }
+    } else if (USC0(EMSUART_UART) & (1 << UCBRK)) {
         USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK>
+        USIE(EMSUART_UART) |= (1 << UIBD); // enable break interrupt
     }
 }
 /*
  * init UART0 driver
  */
 void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
-    if (tx_mode_ != 0xFF) { // it's a restart no need to configure rx
+    if (tx_mode > 10) {
+        emsTxWait = 5 * EMSUART_TX_BIT_TIME * tx_mode;   // bittimes for tx_mode
+    } else if (tx_mode > 5) {
+        emsTxWait = 10 * EMSUART_TX_BIT_TIME * tx_mode;  // bittimes for tx_mode
+    }
+    if (tx_mode == 5) {
+        USC0(EMSUART_UART) = 0x2C; // 8N1,5
+    } else {
+        USC0(EMSUART_UART) = EMSUART_CONFIG; // 8N1
+    }
+
+    if (tx_mode_ != 0xFF) { // it's a restart no need to configure uart
         tx_mode_ = tx_mode;
         restart();
         return;
@@ -141,6 +156,7 @@ void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
     // allocate and preset EMS Receive buffers
     for (int i = 0; i < EMS_MAXBUFFERS; i++) {
         EMSRxBuf_t * p = (EMSRxBuf_t *)malloc(sizeof(EMSRxBuf_t));
+        p->length      = 0;
         paEMSRxBuf[i]  = p;
     }
     pEMSRxBuf = paEMSRxBuf[0]; // reset EMS Rx Buffer
@@ -156,7 +172,6 @@ void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
 
     // set 9600, 8 bits, no parity check, 1 stop bit
     USD(EMSUART_UART)  = (UART_CLK_FREQ / EMSUART_BAUD);
-    USC0(EMSUART_UART) = EMSUART_CONFIG; // 8N1
 
     emsuart_flush_fifos();
 
@@ -169,7 +184,6 @@ void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
     // change: we set UCFFT to 1 to get an immediate indicator about incoming traffic.
     //         Otherwise, we're only noticed by UCTOT or RxBRK!
     // change: don't care, we do not use these interrupts
-    // change proddy 13-june-2020: add back USC1(EMSUART_UART) = 0;
     USC1(EMSUART_UART) = 0; // reset config first
     // USC1(EMSUART_UART) = (0x7F << UCFFT) | (0x04 << UCTOT) | (1 << UCTOE); // enable interupts
 
@@ -200,9 +214,6 @@ void ICACHE_FLASH_ATTR EMSuart::start(uint8_t tx_mode) {
     // for sending with large delay in EMS+ mode we use a timer interrupt
     timer1_attachInterrupt(emsuart_tx_timer_intr_handler); // Add ISR Function
     timer1_enable(TIM_DIV16, TIM_EDGE, TIM_SINGLE);        // 5 MHz timer
-
-    // emsTxWait = 5 * EMSUART_TX_BIT_TIME * 20;                 // 20 bittimes for tx_mode 2
-    emsTxWait = 5 * EMSUART_TX_BIT_TIME * 11; // 20 bittimes for tx_mode 2
 }
 
 /*
@@ -233,20 +244,19 @@ void ICACHE_FLASH_ATTR EMSuart::restart() {
  * Which is a 11-bit set of zero's (11 cycles)
  */
 void ICACHE_FLASH_ATTR EMSuart::tx_brk() {
-    uint32_t tmp;
 
     // must make sure Tx FIFO is empty
     while (((USS(EMSUART_UART) >> USTXC) & 0xFF))
         ;
-
-    tmp = ((1 << UCRXRST) | (1 << UCTXRST)); // bit mask
-    USC0(EMSUART_UART) |= (tmp);             // set bits
-    USC0(EMSUART_UART) &= ~(tmp);            // clear bits
+    // do not clear buffers to get a echo back
+    // tmp = ((1 << UCRXRST) | (1 << UCTXRST)); // bit mask
+    // USC0(EMSUART_UART) |= (tmp);             // set bits
+    // USC0(EMSUART_UART) &= ~(tmp);            // clear bits
 
     // To create a 11-bit <BRK> we set TXD_BRK bit so the break signal will
     // automatically be sent when the tx fifo is empty
-    tmp = (1 << UCBRK);
-    USC0(EMSUART_UART) |= (tmp); // set bit
+    ETS_UART_INTR_DISABLE();
+    USC0(EMSUART_UART) |= (1 << UCBRK); // set bit
 
     if (tx_mode_ == EMS_TXMODE_EMSPLUS) {           // EMS+ mode
         delayMicroseconds(EMSUART_TX_BRK_WAIT);     // 2070
@@ -254,7 +264,8 @@ void ICACHE_FLASH_ATTR EMSuart::tx_brk() {
         delayMicroseconds(EMSUART_TX_BRK_WAIT_HT3); // 1144
     }
 
-    USC0(EMSUART_UART) &= ~(tmp); // clear BRK bit
+    USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear BRK bit
+    ETS_UART_INTR_ENABLE();
 }
 
 /*
@@ -262,17 +273,18 @@ void ICACHE_FLASH_ATTR EMSuart::tx_brk() {
  * It's a bit dirty. there is no special wait logic per tx_mode type, fifo flushes or error checking
  */
 void EMSuart::send_poll(uint8_t data) {
-    if (tx_mode_ == EMS_TXMODE_NEW) {
-        USC0(EMSUART_UART) &= ~(1 << UCBRK); // reset tx-brk
+    // reset tx-brk, just in case it is accidently set
+    USC0(EMSUART_UART) &= ~(1 << UCBRK);
+    if (tx_mode_ > 5) { // timer controlled modes
+        USF(EMSUART_UART) = data;
+        emsTxBufIdx = 0;
+        emsTxBufLen = 1;
+        timer1_write(emsTxWait);
+    } else if (tx_mode_ >= EMS_TXMODE_NEW) { // hardware controlled modes
         USF(EMSUART_UART) = data;
         USC0(EMSUART_UART) |= (1 << UCBRK); // send <BRK> at the end
-    } else if (tx_mode_ == EMS_TXMODE_EMSPLUS) {
-        USF(EMSUART_UART) = data;
-        emsTxBufIdx       = 0;
-        emsTxBufLen       = 1;
-        timer1_write(emsTxWait);
-    } else {
-        // EMS1.0 and HT3
+    } else { // software controlled modes
+        // EMS1.0, EMS+ and HT3
         USF(EMSUART_UART) = data;
         delayMicroseconds(EMSUART_TX_BRK_WAIT);
         tx_brk(); // send <BRK>
@@ -285,8 +297,8 @@ void EMSuart::send_poll(uint8_t data) {
  * returns code, 0=success, 1=brk error, 2=watchdog timeout
  */
 uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
-    if (len == 0) {
-        return EMS_TX_STATUS_ERR; // nothing to send
+    if (len == 0 || len > 32) {
+        return EMS_TX_STATUS_ERR; // nothing or to much to send
     }
 #ifdef EMSESP_DEBUG
     // LOG_INFO(F("[DEBUG] UART Response time: %d ms"), uuid::get_uptime() - emsRxTime);
@@ -294,10 +306,23 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
     // if ((uuid::get_uptime() - emsRxTime) > EMS_RX_TO_TX_TIMEOUT)) { // send allowed within 20 ms
     //      return EMS_TX_STATUS_ERR;
     // }
+    // reset tx-brk, just in case it is accidently set
+    USC0(EMSUART_UART) &= ~(1 << UCBRK);
+
+    // timer controlled modes with extra delay
+    if (tx_mode_ > 5) {
+        for (uint8_t i = 0; i < len; i++) {
+            emsTxBuf[i] = buf[i];
+        }
+        emsTxBufIdx = 0;
+        emsTxBufLen = len;
+        USF(EMSUART_UART) = buf[0];
+        timer1_write(emsTxWait);
+        return EMS_TX_STATUS_OK;
+    }
 
     // new code from Michael. See https://github.com/proddy/EMS-ESP/issues/380
-    if (tx_mode_ == EMS_TXMODE_NEW) {
-        USC0(EMSUART_UART) &= ~(1 << UCBRK); // reset tx-brk
+    if (tx_mode_ >= EMS_TXMODE_NEW) {
         for (uint8_t i = 0; i < len; i++) {
             USF(EMSUART_UART) = buf[i];
         }
@@ -308,15 +333,10 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
     // EMS+ https://github.com/proddy/EMS-ESP/issues/23#
     if (tx_mode_ == EMS_TXMODE_EMSPLUS) { // With extra tx delay for EMS+
         for (uint8_t i = 0; i < len; i++) {
-            emsTxBuf[i] = buf[i];
-            //            USF(EMSUART_UART) = buf[i];
-            //            delayMicroseconds(EMSUART_TX_WAIT_EMSPLUS); // 2070
+            USF(EMSUART_UART) = buf[i];
+            delayMicroseconds(EMSUART_TX_BRK_WAIT); // 2070
         }
-        emsTxBufIdx       = 0;
-        emsTxBufLen       = len;
-        USF(EMSUART_UART) = buf[0];
-        timer1_write(emsTxWait);
-        //        tx_brk(); // send <BRK>
+        tx_brk(); // send <BRK>
         return EMS_TX_STATUS_OK;
     }
 
@@ -352,7 +372,7 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
      * 2. Busmaster cancel telegram by sending a BRK
      * 
      * Case 1. is handled by a watchdog counter which is reset on each
-     * Tx attempt. The timeout should be 20x EMSUART_TX_BIT_TIME plus 
+     * Tx attempt. The timeout should be 20x EMSUART_TX_BIT_TIME plus
      * some smart guess for processing time on targeted EMS device.
      * We set Status to EMS_TX_WTD_TIMEOUT and return
      * 
@@ -385,16 +405,18 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
     // neither bus collision nor timeout - send terminating BRK signal
     if (!(USIS(EMSUART_UART) & (1 << UIBD))) {
         // no bus collision - send terminating BRK signal
-        USC0(EMSUART_UART) |= (1 << UCLBE) | (1 << UCBRK); // enable loopback & set <BRK>
+        // USC0(EMSUART_UART) |= (1 << UCLBE) | (1 << UCBRK); // enable loopback & set <BRK>
+        USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
 
         // wait until BRK detected...
         while (!(USIR(EMSUART_UART) & (1 << UIBD))) {
             delayMicroseconds(EMSUART_TX_BIT_TIME);
         }
 
-        USC0(EMSUART_UART) &= ~((1 << UCBRK) | (1 << UCLBE)); // disable loopback & clear <BRK>
-        USIC(EMSUART_UART) = (1 << UIBD);                     // clear BRK detect IRQ
-        phantomBreak       = 1;
+        USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK>
+        // USC0(EMSUART_UART) &= ~((1 << UCBRK) | (1 << UCLBE)); // disable loopback & clear <BRK>
+        // USIC(EMSUART_UART) = (1 << UIBD);                     // clear BRK detect IRQ
+        // phantomBreak       = 1;
     }
 
     // interrupts();
@@ -405,4 +427,4 @@ uint16_t ICACHE_FLASH_ATTR EMSuart::transmit(uint8_t * buf, uint8_t len) {
 
 } // namespace emsesp
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/uart/emsuart_esp8266.h b/src/uart/emsuart_esp8266.h
index e66912b13..26ca2478c 100644
--- a/src/uart/emsuart_esp8266.h
+++ b/src/uart/emsuart_esp8266.h
@@ -26,7 +26,7 @@
 #include <uuid/log.h>
 
 #define EMSUART_UART 0      // UART 0
-#define EMSUART_CONFIG 0x1C // 8N1 (8 bits, no stop bits, 1 parity)
+#define EMSUART_CONFIG 0x1C // 8N1 (8 bits, no parity, 1 stop bit)
 #define EMSUART_BAUD 9600   // uart baud rate for the EMS circuit
 
 #define EMS_MAXBUFFERS 3     // buffers for circular filling to avoid collisions
@@ -84,4 +84,4 @@ class EMSuart {
 } // namespace emsesp
 
 #endif
-#endif
\ No newline at end of file
+#endif