diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000..83199303
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,191 @@
+set(CORE_SRCS
+  cores/esp32/base64.cpp
+  cores/esp32/cbuf.cpp
+  cores/esp32/esp32-hal-adc.c
+  cores/esp32/esp32-hal-bt.c
+  cores/esp32/esp32-hal-dac.c
+  cores/esp32/esp32-hal-gpio.c
+  cores/esp32/esp32-hal-i2c.c
+  cores/esp32/esp32-hal-ledc.c
+  cores/esp32/esp32-hal-matrix.c
+  cores/esp32/esp32-hal-misc.c
+  cores/esp32/esp32-hal-sigmadelta.c
+  cores/esp32/esp32-hal-spi.c
+  cores/esp32/esp32-hal-time.c
+  cores/esp32/esp32-hal-timer.c
+  cores/esp32/esp32-hal-touch.c
+  cores/esp32/esp32-hal-uart.c
+  cores/esp32/Esp.cpp
+  cores/esp32/HardwareSerial.cpp
+  cores/esp32/IPAddress.cpp
+  cores/esp32/IPv6Address.cpp
+  cores/esp32/libb64/cdecode.c
+  cores/esp32/libb64/cencode.c
+  cores/esp32/MD5Builder.cpp
+  cores/esp32/Print.cpp
+  cores/esp32/stdlib_noniso.c
+  cores/esp32/Stream.cpp
+  cores/esp32/StreamString.cpp
+  cores/esp32/wiring_pulse.c
+  cores/esp32/wiring_shift.c
+  cores/esp32/WMath.cpp
+  cores/esp32/WString.cpp
+  )
+
+set(LIBRARY_SRCS
+  libraries/ArduinoOTA/src/ArduinoOTA.cpp
+  libraries/BluetoothSerial/src/BluetoothSerial.cpp
+  libraries/DNSServer/src/DNSServer.cpp
+  libraries/EEPROM/EEPROM.cpp
+  libraries/ESPmDNS/src/ESPmDNS.cpp
+  libraries/FS/src/FS.cpp
+  libraries/FS/src/vfs_api.cpp
+  libraries/HTTPClient/src/HTTPClient.cpp
+  libraries/Preferences/src/Preferences.cpp
+  libraries/SD_MMC/src/SD_MMC.cpp
+  libraries/SD/src/SD.cpp
+  libraries/SD/src/sd_diskio.cpp
+  libraries/SD/src/sd_diskio_crc.c
+  libraries/SimpleBLE/src/SimpleBLE.cpp
+  libraries/SPIFFS/src/SPIFFS.cpp
+  libraries/SPI/src/SPI.cpp
+  libraries/Ticker/src/Ticker.cpp
+  libraries/Update/src/Updater.cpp
+  libraries/WiFiClientSecure/src/ssl_client.cpp
+  libraries/WiFiClientSecure/src/WiFiClientSecure.cpp
+  libraries/WiFi/src/ETH.cpp
+  libraries/WiFi/src/WiFiAP.cpp
+  libraries/WiFi/src/WiFiClient.cpp
+  libraries/WiFi/src/WiFi.cpp
+  libraries/WiFi/src/WiFiGeneric.cpp
+  libraries/WiFi/src/WiFiMulti.cpp
+  libraries/WiFi/src/WiFiScan.cpp
+  libraries/WiFi/src/WiFiServer.cpp
+  libraries/WiFi/src/WiFiSTA.cpp
+  libraries/WiFi/src/WiFiUdp.cpp
+  libraries/Wire/src/Wire.cpp
+  )
+
+set(AZURE_SRCS
+  libraries/AzureIoT/src/az_iot/azureiotcerts.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/agenttime.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/dns_async.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/freertos/lock.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/freertos/threadapi.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/freertos/tickcounter.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/lwip/sntp_lwip.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/socket_async.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/src/platform_openssl_compact.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/src/tlsio_openssl_compact.c
+  libraries/AzureIoT/src/az_iot/c-utility/pal/tlsio_options.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/base64.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/buffer.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/connection_string_parser.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/consolelogger.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/constbuffer.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/constmap.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/crt_abstractions.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/doublylinkedlist.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/gballoc.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/gb_stdio.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/gb_time.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/hmac.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/hmacsha256.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/httpapiex.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/httpapiexsas.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/httpheaders.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/http_proxy_io.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/map.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/optionhandler.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/sastoken.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/sha1.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/sha224.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/sha384-512.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/singlylinkedlist.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/strings.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/string_tokenizer.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/urlencode.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/usha.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/vector.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/xio.c
+  libraries/AzureIoT/src/az_iot/c-utility/src/xlogging.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/blob.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothub_client_authorization.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothub_client.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothub_client_ll.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothub_client_retry_control.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothub_message.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothubtransport.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothubtransportmqtt.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/iothubtransport_mqtt_common.c
+  libraries/AzureIoT/src/az_iot/iothub_client/src/version.c
+  libraries/AzureIoT/src/az_iot/umqtt/src/mqtt_client.c
+  libraries/AzureIoT/src/az_iot/umqtt/src/mqtt_codec.c
+  libraries/AzureIoT/src/az_iot/umqtt/src/mqtt_message.c
+  libraries/AzureIoT/src/AzureIotHub.cpp
+  libraries/AzureIoT/src/Esp32MQTTClient.cpp
+  )
+
+set(BLE_SRCS
+  libraries/BLE/src/BLE2902.cpp
+  libraries/BLE/src/BLE2904.cpp
+  libraries/BLE/src/BLEAddress.cpp
+  libraries/BLE/src/BLEAdvertisedDevice.cpp
+  libraries/BLE/src/BLEAdvertising.cpp
+  libraries/BLE/src/BLEBeacon.cpp
+  libraries/BLE/src/BLECharacteristic.cpp
+  libraries/BLE/src/BLECharacteristicMap.cpp
+  libraries/BLE/src/BLEClient.cpp
+  libraries/BLE/src/BLEDescriptor.cpp
+  libraries/BLE/src/BLEDescriptorMap.cpp
+  libraries/BLE/src/BLEDevice.cpp
+  libraries/BLE/src/BLEExceptions.cpp
+  libraries/BLE/src/BLEHIDDevice.cpp
+  libraries/BLE/src/BLERemoteCharacteristic.cpp
+  libraries/BLE/src/BLERemoteDescriptor.cpp
+  libraries/BLE/src/BLERemoteService.cpp
+  libraries/BLE/src/BLEScan.cpp
+  libraries/BLE/src/BLESecurity.cpp
+  libraries/BLE/src/BLEServer.cpp
+  libraries/BLE/src/BLEService.cpp
+  libraries/BLE/src/BLEServiceMap.cpp
+  libraries/BLE/src/BLEUtils.cpp
+  libraries/BLE/src/BLEUUID.cpp
+  libraries/BLE/src/BLEValue.cpp
+  libraries/BLE/src/FreeRTOS.cpp
+  libraries/BLE/src/GeneralUtils.cpp
+  )
+
+set(COMPONENT_SRCS ${CORE_SRCS} ${LIBRARY_SRCS} ${AZURE_SRCS} ${BLE_SRCS})
+
+set(COMPONENT_ADD_INCLUDEDIRS
+  variants/esp32/
+  cores/esp32/
+  libraries/ArduinoOTA/src
+  libraries/AzureIoT/src
+  libraries/BLE/src
+  libraries/BluetoothSerial/src
+  libraries/DNSServer/src
+  libraries/ESP32/src
+  libraries/ESPmDNS/src
+  libraries/FS/src
+  libraries/HTTPClient/src
+  libraries/Preferences/src
+  libraries/SD_MMC/src
+  libraries/SD/src
+  libraries/SimpleBLE/src
+  libraries/SPIFFS/src
+  libraries/SPI/src
+  libraries/Ticker/src
+  libraries/Update/src
+  libraries/WiFiClientSecure/src
+  libraries/WiFi/src
+  libraries/Wire/src
+  )
+
+set(COMPONENT_PRIV_INCLUDEDIRS cores/esp32/libb64)
+
+set(COMPONENT_REQUIRES spi_flash mbedtls mdns ethernet)
+set(COMPONENT_PRIV_REQUIRES fatfs nvs_flash app_update spiffs bootloader_support openssl)
+
+register_component()
diff --git a/tools/check_cmakelists.sh b/tools/check_cmakelists.sh
new file mode 100755
index 00000000..aa28c5be
--- /dev/null
+++ b/tools/check_cmakelists.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# This script is for Travis. It checks all non-examples source files in libraries/ and cores/ are listed in
+# CMakeLists.txt for the cmake-based IDF component
+#
+# If you see an error running this script, edit CMakeLists.txt and add any new source files into your PR
+#
+
+set -e
+
+cd "`dirname $0`/.."  # cd to arduino-esp32 root
+
+# find all source files in repo
+REPO_SRCS=`find cores/esp32/ libraries/ -name 'examples' -prune -o -name 'main.cpp' -prune -o -name '*.c' -print -o -name '*.cpp' -print | sort`
+
+# find all source files named in CMakeLists.txt COMPONENT_SRCS
+CMAKE_SRCS=`cmake --trace-expand -C CMakeLists.txt 2>&1 | grep COMPONENT_SRCS | sed 's/.\+COMPONENT_SRCS //' | sed 's/ )//' | tr ' ;' '\n' | sort`
+
+if ! diff -u0 --label "Repo Files" --label "COMPONENT_SRCS" <(echo "$REPO_SRCS") <(echo "$CMAKE_SRCS"); then
+    echo "Source files in repo (-) and source files in CMakeLists.txt (+) don't match"
+    echo "Edit CMakeLists.txt as appropriate to add/remove source files from COMPONENT_SRCS"
+    exit 1
+fi
+
+echo "CMakeLists.txt and repo source files match"
+exit 0