diff --git a/esphome/components/atc_mithermometer/atc_mithermometer.cpp b/esphome/components/atc_mithermometer/atc_mithermometer.cpp
index 08e1cc3207..e628f697e6 100644
--- a/esphome/components/atc_mithermometer/atc_mithermometer.cpp
+++ b/esphome/components/atc_mithermometer/atc_mithermometer.cpp
@@ -24,21 +24,14 @@ bool ATCMiThermometer::parse_device(const esp32_ble_tracker::ESPBTDevice &device
 
   bool success = false;
   for (auto &service_data : device.get_service_datas()) {
-    auto res = xiaomi_ble::parse_xiaomi_header(service_data);
-    if (!res.has_value()) {
-      continue;
-    }
+    auto res = parse_header(service_data);
     if (res->is_duplicate) {
       continue;
     }
-    if (res->has_encryption) {
-      ESP_LOGVV(TAG, "parse_device(): payload decryption is currently not supported on this device.");
+    if (!(parse_message(service_data.data, *res))) {
       continue;
     }
-    if (!(xiaomi_ble::parse_xiaomi_message(service_data.data, *res))) {
-      continue;
-    }
-    if (!(xiaomi_ble::report_xiaomi_results(res, device.address_str()))) {
+    if (!(report_results(res, device.address_str()))) {
       continue;
     }
     if (res->temperature.has_value() && this->temperature_ != nullptr)
@@ -57,6 +50,86 @@ bool ATCMiThermometer::parse_device(const esp32_ble_tracker::ESPBTDevice &device
   return true;
 }
 
+optional<ParseResult> ATCMiThermometer::parse_header(const esp32_ble_tracker::ServiceData &service_data) {
+  ParseResult result;
+  if (!service_data.uuid.contains(0x18, 0x1A)) {
+    ESP_LOGVV(TAG, "parse_header(): no service data UUID magic bytes.");
+    return {};
+  }
+
+  auto raw = service_data.data;
+
+  static uint8_t last_frame_count = 0;
+  if (last_frame_count == raw[16]) {
+    ESP_LOGVV(TAG, "parse_xiaomi_header(): duplicate data packet received (%d).", static_cast<int>(last_frame_count));
+    result.is_duplicate = true;
+    return {};
+  }
+  last_frame_count = raw[16];
+  result.is_duplicate = false;
+
+  return result;
+}
+
+bool ATCMiThermometer::parse_message(const std::vector<uint8_t> &message, ParseResult &result) {
+
+  // Byte 5-10 mac in correct order
+  // Byte 11-12 Temperature in uint16
+  // Byte 13 Humidity in percent
+  // Byte 14 Battery in percent
+  // Byte 15-16 Battery in mV uint16_t
+  // Byte 17 frame packet counter
+
+  const uint8_t *raw = message.data();
+  const uint8_t *data = raw + 3;
+
+  if (message.size() != 17) {
+    ESP_LOGVV(TAG, "parse_message(): payload has wrong size (%d)!", data_length);
+    return false;
+  }
+
+  // temperature, 2 bytes, 16-bit signed integer (LE), 0.1 °C
+  else if (raw[0] == 0x04) {
+    const int16_t temperature = uint16_t(data[0]) | (uint16_t(data[1]) << 8);
+    result.temperature = temperature / 10.0f;
+  }
+  // humidity, 2 bytes, 16-bit signed integer (LE), 0.1 %
+  else if (raw[0] == 0x06) {
+    const int16_t humidity = uint16_t(data[0]) | (uint16_t(data[1]) << 8);
+    result.humidity = humidity / 10.0f;
+  }
+  // battery, 1 byte, 8-bit unsigned integer, 1 %
+  else if (raw[0] == 0x0A) {
+    result.battery_level = data[0];
+
+  } else {
+    return false;
+  }
+
+  return true;
+}
+
+bool ATCMiThermometer::report_results(const optional<ParseResult> &result, const std::string &address) {
+  if (!result.has_value()) {
+    ESP_LOGVV(TAG, "report_results(): no results available.");
+    return false;
+  }
+
+  ESP_LOGD(TAG, "Got ATC MiThermometer (%s):", address.c_str());
+
+  if (result->temperature.has_value()) {
+    ESP_LOGD(TAG, "  Temperature: %.1f°C", *result->temperature);
+  }
+  if (result->humidity.has_value()) {
+    ESP_LOGD(TAG, "  Humidity: %.1f%%", *result->humidity);
+  }
+  if (result->battery_level.has_value()) {
+    ESP_LOGD(TAG, "  Battery Level: %.0f%%", *result->battery_level);
+  }
+
+  return true;
+}
+
 }  // namespace atc_mithermometer
 }  // namespace esphome
 
diff --git a/esphome/components/atc_mithermometer/atc_mithermometer.h b/esphome/components/atc_mithermometer/atc_mithermometer.h
index fb3a48d59b..07bdd40ae2 100644
--- a/esphome/components/atc_mithermometer/atc_mithermometer.h
+++ b/esphome/components/atc_mithermometer/atc_mithermometer.h
@@ -3,13 +3,20 @@
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
 #include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
-#include "esphome/components/xiaomi_ble/xiaomi_ble.h"
 
 #ifdef ARDUINO_ARCH_ESP32
 
 namespace esphome {
 namespace atc_mithermometer {
 
+struct ParseResult {
+  optional<float> temperature;
+  optional<float> humidity;
+  optional<float> battery_level;
+  bool is_duplicate;
+  int raw_offset;
+};
+
 class ATCMiThermometer : public Component, public esp32_ble_tracker::ESPBTDeviceListener {
  public:
   void set_address(uint64_t address) { address_ = address; };
@@ -21,6 +28,10 @@ class ATCMiThermometer : public Component, public esp32_ble_tracker::ESPBTDevice
   void set_humidity(sensor::Sensor *humidity) { humidity_ = humidity; }
   void set_battery_level(sensor::Sensor *battery_level) { battery_level_ = battery_level; }
 
+  optional<ParseResult> parse_header(const esp32_ble_tracker::ServiceData &service_data);
+  bool parse_message(const std::vector<uint8_t> &message, ParseResult &result);
+  bool report_results(const optional<ParseResult> &result, const std::string &address);
+
  protected:
   uint64_t address_;
   sensor::Sensor *temperature_{nullptr};
diff --git a/esphome/components/atc_mithermometer/sensor.py b/esphome/components/atc_mithermometer/sensor.py
index 5a6a2039d5..c4f2dbb1c1 100644
--- a/esphome/components/atc_mithermometer/sensor.py
+++ b/esphome/components/atc_mithermometer/sensor.py
@@ -5,7 +5,6 @@ from esphome.const import CONF_BATTERY_LEVEL, CONF_HUMIDITY, CONF_MAC_ADDRESS, C
     UNIT_CELSIUS, ICON_THERMOMETER, UNIT_PERCENT, ICON_WATER_PERCENT, ICON_BATTERY, CONF_ID
 
 DEPENDENCIES = ['esp32_ble_tracker']
-AUTO_LOAD = ['xiaomi_ble']
 
 atc_mithermometer_ns = cg.esphome_ns.namespace('atc_mithermometer')
 ATCMiThermometer = atc_mithermometer_ns.class_('ATCMiThermometer',