diff --git a/README.md b/README.md
index 1d67b6b..1272b54 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Follow the directions at [espressif/arduino-esp32](https://github.com/espressif/
  - [mikalhart/TinyGPSPlus](https://github.com/mikalhart/TinyGPSPlus)
  - [ThingPulse/esp8266-oled-ssd1306](https://github.com/ThingPulse/esp8266-oled-ssd1306)
 
-#### TTN Decoder
+#### TTN Payload Decoder
 
 ```C
 function Decoder(bytes, port) {
@@ -29,22 +29,17 @@ function Decoder(bytes, port) {
 
     decoded.latitude = ((bytes[0]<<16)>>>0) + ((bytes[1]<<8)>>>0) + bytes[2];
     decoded.latitude = (decoded.latitude / 16777215.0 * 180) - 90;
-  
+
     decoded.longitude = ((bytes[3]<<16)>>>0) + ((bytes[4]<<8)>>>0) + bytes[5];
     decoded.longitude = (decoded.longitude / 16777215.0 * 360) - 180;
-  
+
     var altValue = ((bytes[6]<<8)>>>0) + bytes[7];
     var sign = bytes[6] & (1 << 7);
-    if(sign)
-    {
-        decoded.altitude = 0xFFFF0000 | altValue;
-    }
-    else
-    {
-        decoded.altitude = altValue;
-    }
-  
+    if(sign) decoded.altitude = 0xFFFF0000 | altValue;
+    else decoded.altitude = altValue;
+
     decoded.hdop = bytes[8] / 10.0;
+    decoded.sats = bytes[9] / 10.0;
 
     return decoded;
 }
diff --git a/main/configuration.h b/main/configuration.h
index ee30bf6..8cdab1e 100644
--- a/main/configuration.h
+++ b/main/configuration.h
@@ -39,6 +39,14 @@ void ttn_register(void (*callback)(uint8_t message));
 // Configuration
 // -----------------------------------------------------------------------------
 
+// Select which T-Beam board is being used. Only uncomment one.
+#define T_BEAM_V07  // AKA Rev0 (first board released)
+// #define T_BEAM_V10  // AKA Rev1 (second board released)
+
+// Select the payload format. Change on TTN as well. Only uncomment one.
+#define PAYLOAD_USE_FULL
+//#define PAYLOAD_USE_CAYENNE
+
 #define DEBUG_PORT              Serial      // Serial debug port
 #define SERIAL_BAUD             115200      // Serial debug baud rate
 #define SLEEP_BETWEEN_MESSAGES  0           // Do sleep between messages
@@ -51,10 +59,6 @@ void ttn_register(void (*callback)(uint8_t message));
 #define LORAWAN_ADR             0           // Enable ADR
 #define GPS_WAIT_FOR_LOCK       5000        // Wait 5s after every boot for GPS lock
 
-// Only enable one payload format. Change on TTN as well.
-#define PAYLOAD_USE_FULL
-//#define PAYLOAD_USE_CAYENNE
-
 // -----------------------------------------------------------------------------
 // DEBUG
 // -----------------------------------------------------------------------------
@@ -94,11 +98,17 @@ void ttn_register(void (*callback)(uint8_t message));
 // -----------------------------------------------------------------------------
 
 #define GPS_SERIAL_NUM  1
-#define GPS_RX_PIN      12
-#define GPS_TX_PIN      15
 #define GPS_BAUDRATE    9600
 #define USE_GPS         1
 
+#if defined(T_BEAM_V07)
+#define GPS_RX_PIN 12
+#define GPS_TX_PIN 15
+#elif defined(T_BEAM_V10)
+#define GPS_RX_PIN 34
+#define GPS_TX_PIN 12
+#endif
+
 // -----------------------------------------------------------------------------
 // LoRa SPI
 // -----------------------------------------------------------------------------
@@ -111,3 +121,12 @@ void ttn_register(void (*callback)(uint8_t message));
 #define DIO0_GPIO       26
 #define DIO1_GPIO       33
 #define DIO2_GPIO       32
+
+// -----------------------------------------------------------------------------
+// Rev1-specific options
+// -----------------------------------------------------------------------------
+
+#if defined(T_BEAM_V10)
+#define GPS_POWER_CTRL_CH  3
+#define LORA_POWER_CTRL_CH 2
+#endif
diff --git a/main/gps.ino b/main/gps.ino
index cf1eb03..62b59ee 100644
--- a/main/gps.ino
+++ b/main/gps.ino
@@ -63,9 +63,10 @@ static void gps_loop() {
     }
 }
 
-#ifdef PAYLOAD_USE_FULL
+#if defined(PAYLOAD_USE_FULL)
+
     // More data than PAYLOAD_USE_CAYENNE
-    void buildPacket(uint8_t txBuffer[9])
+    void buildPacket(uint8_t txBuffer[10])
     {
         LatitudeBinary = ((_gps.location.lat() + 90) / 180.0) * 16777215;
         LongitudeBinary = ((_gps.location.lng() + 180) / 360.0) * 16777215;
@@ -83,12 +84,14 @@ static void gps_loop() {
         altitudeGps = _gps.altitude.meters();
         txBuffer[6] = ( altitudeGps >> 8 ) & 0xFF;
         txBuffer[7] = altitudeGps & 0xFF;
-        hdopGps = _gps.hdop.value()/10;
+        hdopGps = _gps.hdop.value() / 10;
         txBuffer[8] = hdopGps & 0xFF;
+        sats = _gps.satellites.value() / 10;
+        txBuffer[9] = sats & 0xFF;
     }
-#endif
 
-#ifdef PAYLOAD_USE_CAYENNE
+#elif defined(PAYLOAD_USE_CAYENNE)
+
     // CAYENNE DF
     void buildPacket(uint8_t txBuffer[11])
     {
@@ -112,4 +115,5 @@ static void gps_loop() {
         txBuffer[9] = alt >> 8;
         txBuffer[10] = alt;
     }
+
 #endif
diff --git a/main/main.ino b/main/main.ino
index b036488..51f2a7b 100644
--- a/main/main.ino
+++ b/main/main.ino
@@ -31,11 +31,10 @@ RTC_DATA_ATTR uint32_t count = 0;
 // -----------------------------------------------------------------------------
 #include <TinyGPS++.h>
 
-#ifdef PAYLOAD_USE_FULL
-  uint8_t txBuffer[9];
-#endif
-
-#ifdef PAYLOAD_USE_CAYENNE
+#if defined(PAYLOAD_USE_FULL)
+  // includes number of satellites and accuracy
+  uint8_t txBuffer[10];
+#elif defined(PAYLOAD_USE_CAYENNE)
   // CAYENNE DF
   static uint8_t txBuffer[11] = {0x03, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 #endif