diff --git a/examples/TTN/TTN_OTTA/boards.cpp b/examples/TTN/TTN_OTTA/boards.cpp
index a049c4c..3fd7a72 100644
--- a/examples/TTN/TTN_OTTA/boards.cpp
+++ b/examples/TTN/TTN_OTTA/boards.cpp
@@ -1,7 +1,10 @@
 
 #include "boards.h"
 
+#ifdef HAS_SDCARD
 SPIClass SDSPI(HSPI);
+#endif
+
 
 #ifdef HAS_DISPLAY
 #include <U8g2lib.h>
@@ -82,17 +85,48 @@ void disablePeripherals()
 }
 #endif
 
+#ifdef STM32L073xx
+HardwareSerial  Serial1(GPS_RX_PIN, GPS_TX_PIN);
+#ifndef USBCON
+HardwareSerial DebugSerial(UART_RX_PIN, UART_TX_PIN);
+#define Serial DebugSerial
+#endif
+#endif
 
 void initBoard()
 {
     Serial.begin(115200);
     Serial.println("initBoard");
-    SPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN);
-    Wire.begin(I2C_SDA, I2C_SCL);
+
+#ifdef STM32L073xx
+    SPI.setMISO(RADIO_MISO_PIN);
+    SPI.setMOSI(RADIO_MOSI_PIN);
+    SPI.setSCLK(RADIO_SCLK_PIN);
+    SPI.begin();
+
+#if defined (I2C_SCL) && defined (I2C_SDA)
+    Wire.setSCL(I2C_SCL);
+    Wire.setSDA(I2C_SDA);
+    Wire.begin();
+#endif
+
+    pinMode(RADIO_SWITCH_PIN, OUTPUT);
+    pinMode(GPS_ENABLE_PIN, OUTPUT);
+
+    digitalWrite(RADIO_SWITCH_PIN, HIGH);
+    digitalWrite(GPS_ENABLE_PIN, HIGH);
 
+#ifdef HAS_GPS
+    Serial1.begin(GPS_BAUD_RATE);
+#endif
+
+#else
+    Wire.begin(I2C_SDA, I2C_SCL);
+    SPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN);
 #ifdef HAS_GPS
     Serial1.begin(GPS_BAUD_RATE, SERIAL_8N1, GPS_RX_PIN, GPS_TX_PIN);
 #endif
+#endif
 
 #if OLED_RST
     pinMode(OLED_RST, OUTPUT);
diff --git a/examples/TTN/TTN_OTTA/loramac.cpp b/examples/TTN/TTN_OTTA/loramac.cpp
index b1b6c36..896be89 100644
--- a/examples/TTN/TTN_OTTA/loramac.cpp
+++ b/examples/TTN/TTN_OTTA/loramac.cpp
@@ -15,12 +15,22 @@ static const u1_t PROGMEM APPKEY[16] = {
 };
 
 // Pin mapping
+#ifdef STM32L073xx
 const lmic_pinmap lmic_pins = {
-    .nss = RADIO_CS_PIN,
+    .nss =  RADIO_CS_PIN,
+    .rxtx = RADIO_SWITCH_PIN,
+    .rst =  RADIO_RST_PIN,
+    .dio = {RADIO_DIO0_PIN, RADIO_DIO1_PIN, RADIO_DIO2_PIN},
+    .rx_level = HIGH
+};
+#else
+const lmic_pinmap lmic_pins = {
+    .nss =  RADIO_CS_PIN,
     .rxtx = LMIC_UNUSED_PIN,
-    .rst = RADIO_RST_PIN,
+    .rst =  RADIO_RST_PIN,
     .dio = {RADIO_DI0_PIN, RADIO_DIO1_PIN, RADIO_BUSY_PIN}
 };
+#endif
 
 static osjob_t sendjob;
 static int spreadFactor = DR_SF7;
diff --git a/examples/TTN/TTN_OTTA/utilities.h b/examples/TTN/TTN_OTTA/utilities.h
index 6e2f9cb..2874773 100644
--- a/examples/TTN/TTN_OTTA/utilities.h
+++ b/examples/TTN/TTN_OTTA/utilities.h
@@ -7,7 +7,9 @@
 // #define LILYGO_T3_V1_0
 // #define LILYGO_T3_V1_6
 // #define LILYGO_T3_V2_0
+// #define LILYGO_T_MOTION_S76G
 
+// #define LILYGO_T_MOTION_S78G         //Not support
 /*
 * The default LMIC_Arduino uses the 868MHz configuration,
 * you need to change the frequency,
@@ -138,6 +140,34 @@
 #define HAS_DISPLAY
 #define HAS_SDCARD
 
+#elif defined(LILYGO_T_MOTION_S76G)
+#define RADIO_SCLK_PIN                                  PB13
+#define RADIO_MISO_PIN                                  PB14
+#define RADIO_MOSI_PIN                                  PB15
+#define RADIO_CS_PIN                                    PB12
+#define RADIO_RST_PIN                                   PB10
+
+#define RADIO_DIO0_PIN                                  PB11
+#define RADIO_DIO1_PIN                                  PC13
+#define RADIO_DIO2_PIN                                  PB9
+#define RADIO_DIO3_PIN                                  PB4
+#define RADIO_DIO4_PIN                                  PB3
+#define RADIO_DIO5_PIN                                  PA15
+
+#define RADIO_SWITCH_PIN                                PA1 //1:Rx, 0:Tx
+
+#define GPS_RST_PIN                                     PB2
+#define GPS_RX_PIN                                      PC11
+#define GPS_TX_PIN                                      PC10
+#define GPS_ENABLE_PIN                                  PC6
+#define GPS_BAUD_RATE                                   115200
+#define GPS_1PPS_PIN                                    PB5
+
+#define UART_RX_PIN                                     PA10
+#define UART_TX_PIN                                     PA9
+
+#define HAS_GPS
+
 #else
 #error "Please select the version you purchased in utilities.h"
 #endif