NanoGateway: Do not overload processor during idle periods

Author: oligauc

examples/lorawan-nano-gateway/nanogateway.py

@@ -31,7 +31,7 @@
 TX_ERR_TX_POWER = 'TX_POWER'
 TX_ERR_GPS_UNLOCKED = 'GPS_UNLOCKED'
 
-UDP_THREAD_CYCLE_MS = const(1)
+UDP_THREAD_CYCLE_MS = const(20)
 
 STAT_PK = {
     'stat': {