diff --git a/dev-install.sh b/dev-install.sh
new file mode 100644
index 0000000..c5cfa19
--- /dev/null
+++ b/dev-install.sh
@@ -0,0 +1,6 @@
+sudo cp ./dev-files/* /etc/udev/rules.d/
+sudo udevadm control --reload
+sudo usermod ccppi -aG uucp
+newgrp uucp
+
+sudo pacman -S avr-gcc avr-libc avrdude micronucleus
diff --git a/main.c b/main.c
index 67df648..8d4a492 100644
--- a/main.c
+++ b/main.c
@@ -31,7 +31,6 @@
 //7-	880
 //8-	1kHz
 //
-const float log_scale = 64./log(64./SCALE_FACTOR + 1.);  
 
 int msec;
 int main (void)
@@ -93,7 +92,7 @@ int main (void)
 						if(sample[i]<0) sample[i] = 0;
 						if(sample[i]>64) sample[i]=64;
 						sample[i] = sample[i] *SCALE_FACTOR;
-						sample[i] = (sample[i]*0.7 + buff[i]*0.3);
+						sample[i] = (sample[i]*7 + buff[i]*3)/10;
 						buff[i] = sample[i];	
 
 				}