diff --git a/esphome/components/anova/anova_base.cpp b/esphome/components/anova/anova_base.cpp
index dcef75e483..cb877bef35 100644
--- a/esphome/components/anova/anova_base.cpp
+++ b/esphome/components/anova/anova_base.cpp
@@ -104,21 +104,21 @@ void AnovaCodec::decode(const uint8_t *data, uint16_t length) {
       break;
     }
     case READ_TARGET_TEMPERATURE: {
-      this->target_temp_ = parse_number<float>(buf, sizeof(buf)).value_or(0.0f);
+      this->target_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);
       if (this->fahrenheit_)
         this->target_temp_ = ftoc(this->target_temp_);
       this->has_target_temp_ = true;
       break;
     }
     case SET_TARGET_TEMPERATURE: {
-      this->target_temp_ = parse_number<float>(buf, sizeof(buf)).value_or(0.0f);
+      this->target_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);
       if (this->fahrenheit_)
         this->target_temp_ = ftoc(this->target_temp_);
       this->has_target_temp_ = true;
       break;
     }
     case READ_CURRENT_TEMPERATURE: {
-      this->current_temp_ = parse_number<float>(buf, sizeof(buf)).value_or(0.0f);
+      this->current_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);
       if (this->fahrenheit_)
         this->current_temp_ = ftoc(this->current_temp_);
       this->has_current_temp_ = true;
diff --git a/esphome/components/display/display_color_utils.h b/esphome/components/display/display_color_utils.h
index 8fc3b0adb9..202de912de 100644
--- a/esphome/components/display/display_color_utils.h
+++ b/esphome/components/display/display_color_utils.h
@@ -42,7 +42,7 @@ class ColorUtil {
                        ? esp_scale(((colorcode >> third_bits) & ((1 << second_bits) - 1)), ((1 << second_bits) - 1))
                        : esp_scale(((colorcode >> 8) & 0xFF), ((1 << second_bits) - 1));
 
-    third_color = (right_bit_aligned ? esp_scale(((colorcode >> 0) & 0xFF), ((1 << third_bits) - 1))
+    third_color = (right_bit_aligned ? esp_scale(((colorcode >> 0) & ((1 << third_bits) - 1)), ((1 << third_bits) - 1))
                                      : esp_scale(((colorcode >> 0) & 0xFF), (1 << third_bits) - 1));
 
     Color color_return;
diff --git a/esphome/components/ezo/ezo.cpp b/esphome/components/ezo/ezo.cpp
index 426f2807c1..ca6f121dbb 100644
--- a/esphome/components/ezo/ezo.cpp
+++ b/esphome/components/ezo/ezo.cpp
@@ -74,6 +74,11 @@ void EZOSensor::loop() {
   if (buf[0] != 1)
     return;
 
+  // some sensors return multiple comma-separated values, terminate string after first one
+  for (int i = 1; i < sizeof(buf) - 1; i++)
+    if (buf[i] == ',')
+      buf[i] = '\0';
+
   float val = parse_number<float>((char *) &buf[1], sizeof(buf) - 2).value_or(0);
   this->publish_state(val);
 }
diff --git a/esphome/components/scd30/scd30.cpp b/esphome/components/scd30/scd30.cpp
index e6d6ec1c1a..272ee75e30 100644
--- a/esphome/components/scd30/scd30.cpp
+++ b/esphome/components/scd30/scd30.cpp
@@ -200,6 +200,7 @@ bool SCD30Component::is_data_ready_() {
   if (!this->write_command_(SCD30_CMD_GET_DATA_READY_STATUS)) {
     return false;
   }
+  delay(4);
   uint16_t is_data_ready;
   if (!this->read_data_(&is_data_ready, 1)) {
     return false;
diff --git a/esphome/components/wifi/wifi_component_esp_idf.cpp b/esphome/components/wifi/wifi_component_esp_idf.cpp
index 7f71b7078c..1d346c0a8e 100644
--- a/esphome/components/wifi/wifi_component_esp_idf.cpp
+++ b/esphome/components/wifi/wifi_component_esp_idf.cpp
@@ -375,8 +375,7 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
         ESP_LOGV(TAG, "esp_wifi_sta_wpa2_ent_set_password failed! %d", err);
       }
     }
-    esp_wpa2_config_t wpa2_config = WPA2_CONFIG_INIT_DEFAULT();
-    err = esp_wifi_sta_wpa2_ent_enable(&wpa2_config);
+    err = esp_wifi_sta_wpa2_ent_enable();
     if (err != ESP_OK) {
       ESP_LOGV(TAG, "esp_wifi_sta_wpa2_ent_enable failed! %d", err);
     }
diff --git a/esphome/const.py b/esphome/const.py
index cb6ea8addd..c2df6ea922 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -1,6 +1,6 @@
 """Constants used by esphome."""
 
-__version__ = "2021.11.3"
+__version__ = "2021.11.4"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 
diff --git a/esphome/core/helpers.cpp b/esphome/core/helpers.cpp
index 27608a84c1..cfc1c74145 100644
--- a/esphome/core/helpers.cpp
+++ b/esphome/core/helpers.cpp
@@ -444,6 +444,11 @@ IRAM_ATTR InterruptLock::~InterruptLock() { portENABLE_INTERRUPTS(); }
 std::string str_truncate(const std::string &str, size_t length) {
   return str.length() > length ? str.substr(0, length) : str;
 }
+std::string str_until(const char *str, char ch) {
+  char *pos = strchr(str, ch);
+  return pos == nullptr ? std::string(str) : std::string(str, pos - str);
+}
+std::string str_until(const std::string &str, char ch) { return str.substr(0, str.find(ch)); }
 std::string str_snake_case(const std::string &str) {
   std::string result;
   result.resize(str.length());
diff --git a/esphome/core/helpers.h b/esphome/core/helpers.h
index 9cdbf7ca16..7718c5f1b2 100644
--- a/esphome/core/helpers.h
+++ b/esphome/core/helpers.h
@@ -351,6 +351,12 @@ template<typename T, enable_if_t<std::is_unsigned<T>::value, int> = 0> constexpr
 /// Truncate a string to a specific length.
 std::string str_truncate(const std::string &str, size_t length);
 
+/// Extract the part of the string until either the first occurence of the specified character, or the end (requires str
+/// to be null-terminated).
+std::string str_until(const char *str, char ch);
+/// Extract the part of the string until either the first occurence of the specified character, or the end.
+std::string str_until(const std::string &str, char ch);
+
 /// Convert the string to snake case (lowercase with underscores).
 std::string str_snake_case(const std::string &str);