diff --git a/FeatureRequest.md b/FeatureRequest.md
index 58b2acce..e8bf3391 100644
--- a/FeatureRequest.md
+++ b/FeatureRequest.md
@@ -11,6 +11,13 @@
 
 ____
 
+#### #16 Serial Communication
+
+* https://github.com/jomjol/AI-on-the-edge-device/issues/512
+* Send the readout value via RX/TX interface with a dedicated TAG
+* Make dedicated communication FlowModule
+* Modification of RX/TX communication
+* Configuration interfache
 
 
 #### #15 Calibration for FishEye image
diff --git a/README.md b/README.md
index 4467534a..830b1a38 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,11 @@ In other cases you can contact the developer via email: <img src="https://raw.gi
 
 ------
 
-##### Rolling (2022-01-03)
+##### Rolling (2022-01-04)
+
+- Reduce ESP32 frequency to 160MHz
+
+Rolling (2022-01-03)
 
 - Update tflite (new source: https://github.com/espressif/tflite-micro-esp-examples)
 - Update digital neural network (dig-s1-q-20220102.tflite)
diff --git a/code/main/main.cpp b/code/main/main.cpp
index b66c8cda..8c1cc92b 100644
--- a/code/main/main.cpp
+++ b/code/main/main.cpp
@@ -215,7 +215,6 @@ extern "C" void app_main(void)
     printf("Do Reset Camera\n");
     PowerResetCamera();
 
-
     size_t _hsize = getESPHeapSize();
     if (_hsize < 4000000)
     {
diff --git a/code/main/version.cpp b/code/main/version.cpp
index ba140d64..9405857c 100644
--- a/code/main/version.cpp
+++ b/code/main/version.cpp
@@ -1,4 +1,4 @@
-const char* GIT_REV="8e8897c";
-const char* GIT_TAG="v10.0.2";
+const char* GIT_REV="8dd3a92";
+const char* GIT_TAG="";
 const char* GIT_BRANCH="rolling";
-const char* BUILD_TIME="2022-01-03 17:21";
\ No newline at end of file
+const char* BUILD_TIME="2022-01-04 21:10";
\ No newline at end of file
diff --git a/code/sdkconfig.esp32cam b/code/sdkconfig.esp32cam
index 14b87455..2e14d848 100644
--- a/code/sdkconfig.esp32cam
+++ b/code/sdkconfig.esp32cam
@@ -303,9 +303,9 @@ CONFIG_ESP32_REV_MIN_0=y
 CONFIG_ESP32_REV_MIN=0
 CONFIG_ESP32_DPORT_WORKAROUND=y
 # CONFIG_ESP32_DEFAULT_CPU_FREQ_80 is not set
-# CONFIG_ESP32_DEFAULT_CPU_FREQ_160 is not set
-CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
-CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ=240
+CONFIG_ESP32_DEFAULT_CPU_FREQ_160=y
+# CONFIG_ESP32_DEFAULT_CPU_FREQ_240 is not set
+CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ=160
 CONFIG_ESP32_SPIRAM_SUPPORT=y
 
 #
diff --git a/code/sdkconfig.esp32cam.old b/code/sdkconfig.esp32cam.old
index 46466b26..19af82b6 100644
--- a/code/sdkconfig.esp32cam.old
+++ b/code/sdkconfig.esp32cam.old
@@ -490,7 +490,7 @@ CONFIG_ESP_HTTP_CLIENT_ENABLE_HTTPS=y
 #
 # HTTP Server
 #
-CONFIG_HTTPD_MAX_REQ_HDR_LEN=512
+CONFIG_HTTPD_MAX_REQ_HDR_LEN=1024
 CONFIG_HTTPD_MAX_URI_LEN=512
 CONFIG_HTTPD_ERR_RESP_NO_DELAY=y
 CONFIG_HTTPD_PURGE_BUF_LEN=16
@@ -553,11 +553,11 @@ CONFIG_ESP_TIMER_IMPL_TG0_LAC=y
 #
 # Wi-Fi
 #
-CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM=5
+CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM=10
 CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM=16
 CONFIG_ESP32_WIFI_STATIC_TX_BUFFER=y
 CONFIG_ESP32_WIFI_TX_BUFFER_TYPE=0
-CONFIG_ESP32_WIFI_STATIC_TX_BUFFER_NUM=8
+CONFIG_ESP32_WIFI_STATIC_TX_BUFFER_NUM=16
 CONFIG_ESP32_WIFI_CACHE_TX_BUFFER_NUM=16
 # CONFIG_ESP32_WIFI_CSI_ENABLED is not set
 CONFIG_ESP32_WIFI_AMPDU_TX_ENABLED=y
@@ -1225,162 +1225,3 @@ CONFIG_CAMERA_CORE0=y
 #
 # CONFIG_LEGACY_INCLUDE_COMMON_HEADERS is not set
 # end of Compatibility options
-
-# Deprecated options for backward compatibility
-CONFIG_TOOLPREFIX="xtensa-esp32-elf-"
-# CONFIG_LOG_BOOTLOADER_LEVEL_NONE is not set
-# CONFIG_LOG_BOOTLOADER_LEVEL_ERROR is not set
-# CONFIG_LOG_BOOTLOADER_LEVEL_WARN is not set
-CONFIG_LOG_BOOTLOADER_LEVEL_INFO=y
-# CONFIG_LOG_BOOTLOADER_LEVEL_DEBUG is not set
-# CONFIG_LOG_BOOTLOADER_LEVEL_VERBOSE is not set
-CONFIG_LOG_BOOTLOADER_LEVEL=3
-# CONFIG_APP_ROLLBACK_ENABLE is not set
-# CONFIG_FLASH_ENCRYPTION_ENABLED is not set
-# CONFIG_FLASHMODE_QIO is not set
-# CONFIG_FLASHMODE_QOUT is not set
-CONFIG_FLASHMODE_DIO=y
-# CONFIG_FLASHMODE_DOUT is not set
-# CONFIG_MONITOR_BAUD_9600B is not set
-# CONFIG_MONITOR_BAUD_57600B is not set
-CONFIG_MONITOR_BAUD_115200B=y
-# CONFIG_MONITOR_BAUD_230400B is not set
-# CONFIG_MONITOR_BAUD_921600B is not set
-# CONFIG_MONITOR_BAUD_2MB is not set
-# CONFIG_MONITOR_BAUD_OTHER is not set
-CONFIG_MONITOR_BAUD_OTHER_VAL=115200
-CONFIG_MONITOR_BAUD=115200
-# CONFIG_COMPILER_OPTIMIZATION_LEVEL_DEBUG is not set
-CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE=y
-CONFIG_OPTIMIZATION_ASSERTIONS_ENABLED=y
-# CONFIG_OPTIMIZATION_ASSERTIONS_SILENT is not set
-# CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED is not set
-# CONFIG_CXX_EXCEPTIONS is not set
-CONFIG_STACK_CHECK_NONE=y
-# CONFIG_STACK_CHECK_NORM is not set
-# CONFIG_STACK_CHECK_STRONG is not set
-# CONFIG_STACK_CHECK_ALL is not set
-# CONFIG_WARN_WRITE_STRINGS is not set
-# CONFIG_DISABLE_GCC8_WARNINGS is not set
-# CONFIG_ESP32_APPTRACE_DEST_TRAX is not set
-CONFIG_ESP32_APPTRACE_DEST_NONE=y
-CONFIG_ESP32_APPTRACE_LOCK_ENABLE=y
-CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN_EFF=0
-CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_ACL_CONN_EFF=0
-CONFIG_BTDM_CONTROLLER_BR_EDR_MAX_SYNC_CONN_EFF=0
-CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE=0
-CONFIG_ADC2_DISABLE_DAC=y
-CONFIG_SPIRAM_SUPPORT=y
-# CONFIG_WIFI_LWIP_ALLOCATION_FROM_SPIRAM_FIRST is not set
-CONFIG_TRACEMEM_RESERVE_DRAM=0x0
-# CONFIG_TWO_UNIVERSAL_MAC_ADDRESS is not set
-CONFIG_FOUR_UNIVERSAL_MAC_ADDRESS=y
-CONFIG_NUMBER_OF_UNIVERSAL_MAC_ADDRESS=4
-# CONFIG_ULP_COPROC_ENABLED is not set
-CONFIG_ULP_COPROC_RESERVE_MEM=0
-CONFIG_BROWNOUT_DET=y
-CONFIG_BROWNOUT_DET_LVL_SEL_0=y
-# CONFIG_BROWNOUT_DET_LVL_SEL_1 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_2 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_3 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_4 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_5 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_6 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_7 is not set
-CONFIG_BROWNOUT_DET_LVL=0
-CONFIG_REDUCE_PHY_TX_POWER=y
-CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_RC=y
-# CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_CRYSTAL is not set
-# CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_OSC is not set
-# CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_8MD256 is not set
-# CONFIG_DISABLE_BASIC_ROM_CONSOLE is not set
-# CONFIG_NO_BLOBS is not set
-# CONFIG_COMPATIBLE_PRE_V2_1_BOOTLOADERS is not set
-CONFIG_SYSTEM_EVENT_QUEUE_SIZE=32
-CONFIG_SYSTEM_EVENT_TASK_STACK_SIZE=2304
-CONFIG_MAIN_TASK_STACK_SIZE=3584
-CONFIG_IPC_TASK_STACK_SIZE=1024
-CONFIG_CONSOLE_UART_DEFAULT=y
-# CONFIG_CONSOLE_UART_CUSTOM is not set
-# CONFIG_ESP_CONSOLE_UART_NONE is not set
-CONFIG_CONSOLE_UART=y
-CONFIG_CONSOLE_UART_NUM=0
-CONFIG_CONSOLE_UART_BAUDRATE=115200
-CONFIG_INT_WDT=y
-CONFIG_INT_WDT_TIMEOUT_MS=300
-CONFIG_INT_WDT_CHECK_CPU1=y
-CONFIG_TASK_WDT=y
-# CONFIG_TASK_WDT_PANIC is not set
-CONFIG_TASK_WDT_TIMEOUT_S=5
-CONFIG_TASK_WDT_CHECK_IDLE_TASK_CPU0=y
-CONFIG_TASK_WDT_CHECK_IDLE_TASK_CPU1=y
-# CONFIG_EVENT_LOOP_PROFILING is not set
-CONFIG_POST_EVENTS_FROM_ISR=y
-CONFIG_POST_EVENTS_FROM_IRAM_ISR=y
-# CONFIG_ESP32S2_PANIC_PRINT_HALT is not set
-CONFIG_ESP32S2_PANIC_PRINT_REBOOT=y
-# CONFIG_ESP32S2_PANIC_SILENT_REBOOT is not set
-# CONFIG_ESP32S2_PANIC_GDBSTUB is not set
-CONFIG_TIMER_TASK_STACK_SIZE=3584
-# CONFIG_ESP32_ENABLE_COREDUMP_TO_FLASH is not set
-# CONFIG_ESP32_ENABLE_COREDUMP_TO_UART is not set
-CONFIG_ESP32_ENABLE_COREDUMP_TO_NONE=y
-CONFIG_MB_MASTER_TIMEOUT_MS_RESPOND=150
-CONFIG_MB_MASTER_DELAY_MS_CONVERT=200
-CONFIG_MB_QUEUE_LENGTH=20
-CONFIG_MB_SERIAL_TASK_STACK_SIZE=4096
-CONFIG_MB_SERIAL_BUF_SIZE=256
-CONFIG_MB_SERIAL_TASK_PRIO=10
-CONFIG_MB_CONTROLLER_SLAVE_ID_SUPPORT=y
-CONFIG_MB_CONTROLLER_SLAVE_ID=0x00112233
-CONFIG_MB_CONTROLLER_NOTIFY_TIMEOUT=20
-CONFIG_MB_CONTROLLER_NOTIFY_QUEUE_SIZE=20
-CONFIG_MB_CONTROLLER_STACK_SIZE=4096
-CONFIG_MB_EVENT_QUEUE_TIMEOUT=20
-CONFIG_MB_TIMER_PORT_ENABLED=y
-CONFIG_MB_TIMER_GROUP=0
-CONFIG_MB_TIMER_INDEX=0
-# CONFIG_ENABLE_STATIC_TASK_CLEAN_UP_HOOK is not set
-CONFIG_TIMER_TASK_PRIORITY=1
-CONFIG_TIMER_TASK_STACK_DEPTH=2048
-CONFIG_TIMER_QUEUE_LENGTH=10
-# CONFIG_L2_TO_L3_COPY is not set
-# CONFIG_USE_ONLY_LWIP_SELECT is not set
-CONFIG_ESP_GRATUITOUS_ARP=y
-CONFIG_GARP_TMR_INTERVAL=60
-CONFIG_TCPIP_RECVMBOX_SIZE=32
-CONFIG_TCP_MAXRTX=12
-CONFIG_TCP_SYNMAXRTX=12
-CONFIG_TCP_MSS=1440
-CONFIG_TCP_MSL=60000
-CONFIG_TCP_SND_BUF_DEFAULT=5744
-CONFIG_TCP_WND_DEFAULT=5744
-CONFIG_TCP_RECVMBOX_SIZE=6
-CONFIG_TCP_QUEUE_OOSEQ=y
-# CONFIG_ESP_TCP_KEEP_CONNECTION_WHEN_IP_CHANGES is not set
-CONFIG_TCP_OVERSIZE_MSS=y
-# CONFIG_TCP_OVERSIZE_QUARTER_MSS is not set
-# CONFIG_TCP_OVERSIZE_DISABLE is not set
-CONFIG_UDP_RECVMBOX_SIZE=6
-CONFIG_TCPIP_TASK_STACK_SIZE=3072
-CONFIG_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
-# CONFIG_TCPIP_TASK_AFFINITY_CPU0 is not set
-# CONFIG_TCPIP_TASK_AFFINITY_CPU1 is not set
-CONFIG_TCPIP_TASK_AFFINITY=0x7FFFFFFF
-# CONFIG_PPP_SUPPORT is not set
-CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT=5
-CONFIG_ESP32_PTHREAD_TASK_STACK_SIZE_DEFAULT=3072
-CONFIG_ESP32_PTHREAD_STACK_MIN=768
-CONFIG_ESP32_DEFAULT_PTHREAD_CORE_NO_AFFINITY=y
-# CONFIG_ESP32_DEFAULT_PTHREAD_CORE_0 is not set
-# CONFIG_ESP32_DEFAULT_PTHREAD_CORE_1 is not set
-CONFIG_ESP32_PTHREAD_TASK_CORE_DEFAULT=-1
-CONFIG_ESP32_PTHREAD_TASK_NAME_DEFAULT="pthread"
-CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_ABORTS=y
-# CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_FAILS is not set
-# CONFIG_SPI_FLASH_WRITING_DANGEROUS_REGIONS_ALLOWED is not set
-CONFIG_SUPPRESS_SELECT_DEBUG_OUTPUT=y
-CONFIG_SUPPORT_TERMIOS=y
-CONFIG_SEMIHOSTFS_MAX_MOUNT_POINTS=1
-CONFIG_SEMIHOSTFS_HOST_PATH_MAX_LEN=128
-# End of deprecated options
diff --git a/code/version.cpp b/code/version.cpp
index ba140d64..9405857c 100644
--- a/code/version.cpp
+++ b/code/version.cpp
@@ -1,4 +1,4 @@
-const char* GIT_REV="8e8897c";
-const char* GIT_TAG="v10.0.2";
+const char* GIT_REV="8dd3a92";
+const char* GIT_TAG="";
 const char* GIT_BRANCH="rolling";
-const char* BUILD_TIME="2022-01-03 17:21";
\ No newline at end of file
+const char* BUILD_TIME="2022-01-04 21:10";
\ No newline at end of file
diff --git a/firmware/bootloader.bin b/firmware/bootloader.bin
index 047f9fe7..928935bb 100644
Binary files a/firmware/bootloader.bin and b/firmware/bootloader.bin differ
diff --git a/firmware/dig-s2-q-20220104.tflite b/firmware/dig-s2-q-20220104.tflite
new file mode 100644
index 00000000..638a0bbe
Binary files /dev/null and b/firmware/dig-s2-q-20220104.tflite differ
diff --git a/firmware/firmware.bin b/firmware/firmware.bin
index 3d6a4da5..4dfc6117 100644
Binary files a/firmware/firmware.bin and b/firmware/firmware.bin differ
diff --git a/sd-card/config/config.ini b/sd-card/config/config.ini
index f73bc3ec..a67ee2d5 100644
--- a/sd-card/config/config.ini
+++ b/sd-card/config/config.ini
@@ -20,7 +20,7 @@ FlipImageSize = false
 /config/ref1.jpg 442 142
 
 [Digits]
-Model = /config/dig-s1-q-20220102.tflite
+Model = /config/dig-s2-q-20220104.tflite
 ;LogImageLocation = /log/digit
 ;LogfileRetentionInDays = 3
 ModelInputSize = 20 32
diff --git a/sd-card/config/dig-s2-q-20220104.tflite b/sd-card/config/dig-s2-q-20220104.tflite
new file mode 100644
index 00000000..638a0bbe
Binary files /dev/null and b/sd-card/config/dig-s2-q-20220104.tflite differ