Timeout tuning

diff --git a/firmware/firmware.c b/firmware/firmware.c
index bbba9874c0231bf0467e01c249495dc264e52b9d..f77e67a570377132a7bcaf815c207be5ed3dad05 100644 (file)
--- a/firmware/firmware.c
+++ b/firmware/firmware.c
@@ -5,8 +5,8 @@
 #include "clock.h"
 #include "modbus.h"
 
-#define ECHO_TIMEOUT           (CLOCK_HZ/10)   // 10 ms
-#define MEASUREMENT_WAIT       (CLOCK_HZ/3)    // three triggers per second
+#define ECHO_TIMEOUT           (CLOCK_HZ/20)   // 50 ms
+#define MEASUREMENT_WAIT       (4*ECHO_TIMEOUT)
 
 #define N_TRIGGERS 3
 #define N_SENSORS 12