diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 33125cbe..87d71859 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -37,6 +37,7 @@ jobs:
           - "esp32-m5atom-matrix"
           - "esp32-m5atom-lite"
           - "esp32dev-rtl_433"
+          - "esp32dev-rtl_433-fsk"
           - "esp32doitv1-aithinker-r01-sx1278"
           - "heltec-rtl_433"
           - "heltec-rtl_433-fsk"
diff --git a/environments.ini b/environments.ini
index ca2889cc..d53eef23 100644
--- a/environments.ini
+++ b/environments.ini
@@ -907,6 +907,50 @@ build_flags =
 ;  '-DRADIOLIB_VERBOSE=true'
 custom_description = Gateway using RTL_433_ESP library, need CC1101
 
+[env:esp32dev-rtl_433-fsk]
+platform = espressif32@6.1.0
+board = esp32dev
+board_build.partitions = min_spiffs.csv
+lib_deps =
+  ${com-esp32.lib_deps}
+  ${libraries.rtl_433_ESP}
+  ${libraries.smartrc-cc1101-driver-lib}
+build_flags =
+  ${com-esp32.build_flags}
+; *** OpenMQTTGateway Config ***
+  ;'-UZmqttDiscovery'          ; disables MQTT Discovery
+  '-DvalueAsATopic=true'       ; MQTT topic includes model and device
+  '-DLOG_LEVEL=LOG_LEVEL_TRACE'
+  '-DGateway_Name="OMG_rtl_433_ESP_FSK"'
+; *** OpenMQTTGateway Modules ***
+  '-DOOK_MODULATION=false' ; FSK modulation activated
+  ;'-DRF_FREQUENCY=915'
+  '-DRF_FREQUENCY=868.300'
+  ;-DRF_FREQUENCY=433.9'
+  '-DZgatewayRTL_433="rtl_433"'
+  '-DZradioCC1101="CC1101"'
+; *** rtl_433_ESP Options ***
+;  '-DRTL_DEBUG=4'             ; rtl_433 verbose mode
+;  '-DRTL_VERBOSE=58'          ; LaCrosse TX141-Bv2, TX141TH-Bv2, TX141-Bv3, TX141W, TX145wsdth sensor
+;  '-DRAW_SIGNAL_DEBUG=true'   ; display raw received messages
+;  '-DMEMORY_DEBUG=true'       ; display memory usage information
+  '-DDEMOD_DEBUG=true'         ; display signal debug info
+;  '-DMY_DEVICES=true'         ; subset of devices
+  '-DPUBLISH_UNPARSED=true'    ; publish unparsed signal details
+;  '-DRSSI_THRESHOLD=12'       ; Apply a delta of 12 to average RSSI level
+;  '-DAVERAGE_RSSI=5000'       ; Display RSSI floor ( Average of 5000 samples )
+  '-DSIGNAL_RSSI=true'         ; Display during signal receive
+  '-DNO_DEAF_WORKAROUND=true'
+; *** RF Module Options ***
+  '-DRF_CC1101="CC1101"'       ; CC1101 Transceiver Module
+;  '-DRF_MODULE_CS=5'          ; pin to be used as chip select
+  '-DRF_MODULE_GDO0=12'        ; CC1101 pin GDO0
+  '-DRF_MODULE_GDO2=27'        ; CC1101 pin GDO2
+; *** RadioLib Options ***
+;  '-DRADIOLIB_DEBUG=true'
+;  '-DRADIOLIB_VERBOSE=true'
+custom_description = Gateway using RTL_433_ESP library and RadioLib with FSK modulation (beta), need CC1101
+
 [env:heltec-rtl_433]
 platform = espressif32@6.1.0
 board = heltec_wifi_lora_32_V2
diff --git a/platformio.ini b/platformio.ini
index 219f975c..3aef13fb 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -60,6 +60,7 @@ extra_configs =
 ;default_envs = esp32s3-atomS3U
 ;default_envs = esp32doitv1-aithinker-r01-sx1278
 ;default_envs = esp32dev-rtl_433
+;default_envs = esp32dev-rtl_433-fsk
 ;default_envs = heltec-rtl_433
 ;default_envs = heltec-rtl_433-fsk
 ;default_envs = heltec-ble
@@ -223,4 +224,4 @@ lib_deps =
   ${libraries.ethernet}
 build_flags =
   ${env.build_flags}
-  '-DsimpleReceiving=false'
\ No newline at end of file
+  '-DsimpleReceiving=false'