# HG changeset patch
# User Ethan Zonca <ez@ethanzonca.com>
# Date 2014-08-23 22:28:17
# Node ID 255811a3e69cf20fe87bbfe6f047acfb3b749a2a
# Parent  297213e62b1d7c533994b8f16c8bf506938fbbe1

Get fractional part

diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -174,6 +174,9 @@ void process()
 
 
     temp_pre = temp_pre >> 2; // Drop 2 lowest bits
+    uint8_t frac = temp_pre & 0b11; // get fractional part
+    frac *= 25; // each bit is .25 a degree, up to fixed point
+    temp_pre = temp_pre >> 2; // Drop 2 fractional bits 
 
     int16_t temp = 0;
     if(sign) {
@@ -216,6 +219,9 @@ void process()
     ssd1306_DrawString("Temp: ", 1, 40);
     ssd1306_DrawString("    ", 1, 70);
     ssd1306_DrawString(tempstr, 1, 70);
+    itoa(frac, tempstr);
+    ssd1306_DrawString("  ", 1, 90);
+    ssd1306_DrawString(tempstr, 1, 90);
 
 /*
     if((!retval || (temp & 0x2) != 0))