diff --git a/cmdline/read-temp.c b/cmdline/read-temp.c
index e635486..fffcd8b 100644
--- a/cmdline/read-temp.c
+++ b/cmdline/read-temp.c
@@ -147,24 +147,26 @@ int                 cnt, vid, pid;
 			rxIndex = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
 			
 			if(rxIndex) { // if we have new data?
-				// get the new char and print it
-				rq = rqGetNew;
+				// advance the new char pointer...
+				rq = rqAdvance;
 				cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, rq[0], rq[1], rq[2], buffer, sizeof(buffer), 5000);
 				if(cnt < 0){
 					fprintf(stderr, "\nUSB error in iteration ?!?: %s\n", usb_strerror());
 				}
 				rxIndex = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
-				fprintf(stderr, "%c", rxIndex);
 
-				// advance the new char pointer...
-				rq = rqAdvance;
+				// get the new char and print it
+				rq = rqGetNew;
 				cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, rq[0], rq[1], rq[2], buffer, sizeof(buffer), 5000);
 				if(cnt < 0){
 					fprintf(stderr, "\nUSB error in iteration ?!?: %s\n", usb_strerror());
 				}
 				rxIndex = ((int)buffer[1] & 0xff) | (((int)buffer[0] & 0xff) << 8);
+				if(rxIndex != 0 && (rxIndex & 0xff) != 0xff){
+					fprintf(stderr, "%c", rxIndex);
+				}
 			}
-			usleep(10000);
+			usleep(1000);
 		}
     } else {
 		usage();
diff --git a/firmware/slavechip/debug.c b/firmware/slavechip/debug.c
index 7c22bf9..5dcc9a8 100644
--- a/firmware/slavechip/debug.c
+++ b/firmware/slavechip/debug.c
@@ -26,6 +26,7 @@ char dbgReadChar() {
 		for(int i=0; i<dbgStrFill-1; i++) {
 			debugStr[i] = debugStr[i+1];
 		}
+		dbgStrFill--;
 		return ret;
 	} else {
 		return 0xFF;
diff --git a/firmware/slavechip/main.c b/firmware/slavechip/main.c
index ec2639f..c39970c 100644
--- a/firmware/slavechip/main.c
+++ b/firmware/slavechip/main.c
@@ -4,6 +4,8 @@
 #include "i2c_simple.h"
 #include "mcp_adc.h"
 
+#include "debug.h"
+
 uint8_t foo;
 uint16_t bar;
 uint16_t timertmp;
@@ -71,6 +73,7 @@ int __attribute__((noreturn)) main(void) {
   softinit();
 
   muxer_set(MUXER_CHANNEL_0);
+  dbgLog("Hallo, Welt!\n");
   temperatures[2]=33;
 
   for(;;){