diff --git a/BUILDS.md b/BUILDS.md
index 3b311a6eb..5c897746a 100644
--- a/BUILDS.md
+++ b/BUILDS.md
@@ -119,6 +119,9 @@
 | USE_MP3_PLAYER        | - | - | - | - | x | - | - |
 | USE_AZ7798            | - | - | - | - | - | - | - |
 | USE_PN532_HSU         | - | - | - | - | x | - | - |
+| USE_RDM6300           | - | - | - | - | x | - | - |
+| USE_IBEACON           | - | - | - | - | x | - | - |
+| USE_GPS               | - | - | - | - | - | - | - |
 | USE_ZIGBEE            | - | - | - | - | - | - | - |
 |                       |   |   |   |   |   |   |   |
 | USE_IR_REMOTE         | - | - | x | x | x | x | x |
diff --git a/tasmota/tasmota_post.h b/tasmota/tasmota_post.h
index c54adfe82..c9f8396fe 100644
--- a/tasmota/tasmota_post.h
+++ b/tasmota/tasmota_post.h
@@ -180,6 +180,7 @@ extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack
 #define USE_PN532_HSU                            // Add support for PN532 using HSU (Serial) interface (+1k8 code, 140 bytes mem)
 #define USE_RDM6300                              // Add support for RDM6300 125kHz RFID Reader (+0k8)
 #define USE_IBEACON                              // Add support for bluetooth LE passive scan of ibeacon devices (uses HM17 module)
+//#define USE_GPS                                  // Add support for GPS and NTP Server for becoming Stratus 1 Time Source (+ 3.1kb flash, +132 bytes RAM)
 
 #define USE_ENERGY_SENSOR                        // Add energy sensors (-14k code)
 #define USE_PZEM004T                             // Add support for PZEM004T Energy monitor (+2k code)
@@ -374,6 +375,7 @@ extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack
 #undef USE_PN532_HSU                             // Disable support for PN532 using HSU (Serial) interface (+1k8 code, 140 bytes mem)
 #undef USE_RDM6300                               // Disable support for RDM6300 125kHz RFID Reader (+0k8)
 #undef USE_IBEACON                               // Disable support for bluetooth LE passive scan of ibeacon devices (uses HM17 module)
+#undef USE_GPS                                   // Disable support for GPS and NTP Server for becoming Stratus 1 Time Source (+ 3.1kb flash, +132 bytes RAM)
 
 //#define USE_DHT                                  // Add support for DHT11, AM2301 (DHT21, DHT22, AM2302, AM2321) and SI7021 Temperature and Humidity sensor
 #undef USE_MAX31855                              // Disable MAX31855 K-Type thermocouple sensor using softSPI
@@ -462,6 +464,7 @@ extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack
 #undef USE_PN532_HSU                             // Disable support for PN532 using HSU (Serial) interface (+1k8 code, 140 bytes mem)
 #undef USE_RDM6300                               // Disable support for RDM6300 125kHz RFID Reader (+0k8)
 #undef USE_IBEACON                               // Disable support for bluetooth LE passive scan of ibeacon devices (uses HM17 module)
+#undef USE_GPS                                   // Disable support for GPS and NTP Server for becoming Stratus 1 Time Source (+ 3.1kb flash, +132 bytes RAM)
 
 //#undef USE_ENERGY_SENSOR                         // Disable energy sensors
 #undef USE_PZEM004T                              // Disable PZEM004T energy sensor
@@ -571,6 +574,7 @@ extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack
 #undef USE_PN532_HSU                             // Disable support for PN532 using HSU (Serial) interface (+1k8 code, 140 bytes mem)
 #undef USE_RDM6300                               // Disable support for RDM6300 125kHz RFID Reader (+0k8)
 #undef USE_IBEACON                               // Disable support for bluetooth LE passive scan of ibeacon devices (uses HM17 module)
+#undef USE_GPS                                   // Disable support for GPS and NTP Server for becoming Stratus 1 Time Source (+ 3.1kb flash, +132 bytes RAM)
 
 #undef USE_ENERGY_SENSOR                         // Disable energy sensors
 #undef USE_PZEM004T                              // Disable PZEM004T energy sensor