diff --git a/avrrfm.c b/avrrfm.c
index 39b1d44..6b32992 100644
--- a/avrrfm.c
+++ b/avrrfm.c
@@ -33,11 +33,11 @@
 #include "dejavu.h"
 #include "unifont.h"
 
-#define MEASURE_INTS    8
+#define MEASURE_INTS    4
 #define LABEL_OFFSET    10
 
 #ifndef RECEIVER
-    #define RECEIVER    1
+    #define RECEIVER    0
 #endif
 
 /* 1 int = 8 seconds */
@@ -161,17 +161,17 @@
     int16_t tempx10 = convertTSens(raw);
     div_t temp = div(tempx10, 10);
     static char buf[16];
-    
+
     snprintf(buf, sizeof (buf), "%d.%d°C\r\n", temp.quot, abs(temp.rem));
     printString(buf);
 
     snprintf(buf, sizeof (buf), "%4d.%d°", temp.quot, abs(temp.rem));
-    
+
     x_t x;
     const __flash Font *unifont = &unifontFont;
     x = writeString(0, yu, unifont, buf);
     yu += unifont->height;
-    if (yu + unifont->height > DISPLAY_HEIGHT) yu = 0; 
+    if (yu + unifont->height > DISPLAY_HEIGHT) yu = 0;
 
     if (xl == 0) xl = x;
     const __flash Font *dejaVu = &dejaVuFont;
@@ -222,7 +222,7 @@
     initSPI();
     initI2C();
     initRadioInt();
-    if (! RECEIVER) {
+    if (!RECEIVER) {
         // used only for tx
         initWatchdog();
     }
@@ -233,10 +233,11 @@
     printString("Hello Radio!\r\n");
 
     initRadio(868600);
-    initDisplay();
-
-    setFrame(0xffff);
     if (RECEIVER) {
+        initDisplay();
+
+        setFrame(0xffff);
+    
         // initial rx mode
         startReceive();
     }
@@ -245,8 +246,8 @@
         // do something else besides tx/rx
         // printString("Running...\r\n");
         // _delay_ms(10);
-        
-        if (! RECEIVER) {
+
+        if (!RECEIVER) {
             if (ints % MEASURE_INTS == 0) {
                 ints = 0;
 
@@ -265,7 +266,7 @@
                 startReceive();
             }
         }
-        
+
         // power down until woken up by watchdog (tx)
         // or "PayloadReady" (rx) interrupt
         set_sleep_mode(SLEEP_MODE_PWR_DOWN);
diff --git a/mcp9808.c b/mcp9808.c
index 124ab63..bbb8ee2 100644
--- a/mcp9808.c
+++ b/mcp9808.c
@@ -46,7 +46,7 @@
     uint16_t value = 0;
     value |= upper << 8;
     value |= lower;
-    
+
     return value;
 }
 
@@ -60,7 +60,7 @@
     uint16_t conf = regRead(MCP9808_CONF);
     conf &= ~(1 << 8);
     regWrite(MCP9808_CONF, conf);
-    
+
     // TODO need to wait for first conversion result after wake up
     // can use an alert irq to wake up sleeping MCU instead?
     _delay_ms(300);
@@ -68,14 +68,14 @@
 
 uint16_t readTSens(void) {
     uint16_t raw = regRead(MCP9808_TEMP);
-    
+
     return raw;
 }
 
 int16_t convertTSens(uint16_t raw) {
     uint8_t upper = raw >> 8;
     uint8_t lower = raw & 0x00ff;
-    
+
     // check flags
     if ((upper & 0x80) == 0x80) {
         // T >= TA CRIT
@@ -99,6 +99,6 @@
         // TA >= 0°C
         temp = (upper * 160 + lower * 10 / 16);
     }
-    
+
     return temp;
 }
\ No newline at end of file
diff --git a/rfm69.c b/rfm69.c
index bf4c2aa..2f27059 100644
--- a/rfm69.c
+++ b/rfm69.c
@@ -238,8 +238,8 @@
 
     loop_until_bit_is_set(irqFlags2, 3);
     clearIrqFlags();
-
+    
     setMode(MODE_STDBY);
-
+    
     return len;
 }
diff --git a/rfm69.h b/rfm69.h
index 01d7d03..04d7113 100644
--- a/rfm69.h
+++ b/rfm69.h
@@ -48,6 +48,7 @@
 #define PCK_CFG1    0x37
 #define NODE_ADDR   0x39
 #define CAST_ADDR   0x3a
+#define AUTO_MODES  0x3b
 #define FIFO_THRESH 0x3c
 #define TEST_LNA    0x58
 #define TEST_PA1    0x5a