Excessive NACK

[lafleur]

If I set the ACK flag in my send() , I get a lot of NACK from the MQTT gateway..

MySensor 2.1b
M0 CPU
IDE 1.6.13

1. Will MySensor do the auto re-transmit? if not, why not?, it should up to N times.
2. If I run without the ACK flag set, I get very few if any NACK
3. If I add a 500ms delay after each send, the number of NACK is less, (but this is a waist of power)
4. all board have 47uf at the radio

TSM:INIT
TSF:WUR:MS=0
TSM:INIT:TSP OK
TSM:INIT:STATID=20
TSF:SID:OK,ID=20
TSM:FPAR
TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
TSF:MSG:READ,0-0-20,s=255,c=3,t=8,pt=1,l=1,sg=0:0
TSF:MSG:FPAR PREF
TSF:MSG:FPAR OK,ID=0,D=1
TSM:FPAR:OK
TSM:ID
TSM:ID:OK
TSM:UPL
TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
TSF:MSG:READ,0-0-20,s=255,c=3,t=25,pt=1,l=1,sg=0:1
TSF:MSG:PONG RECV,HP=1
TSM:UPL:OK
TSM:READY:ID=20,PAR=0,DIS=1
TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
TSF:MSG:READ,0-0-20,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
TSF:MSG:SEND,20-20-0-0,s=255,c=0,t=17,pt=0,l=10,sg=0,ft=0,st=OK:2.1.0-beta
TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=11,pt=0,l=20,sg=0,ft=0,st=OK:Soil Moisture Sensor
!TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=12,pt=0,l=4,sg=0,ft=0,st=NACK:1.1a
TSF:MSG:SEND,20-20-0-0,s=1,c=0,t=21,pt=0,l=14,sg=0,ft=1,st=OK:Water Moisture
MCO:REG:REQ
!TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=NACK:2
TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=1,st=OK:2
TSF:MSG:READ,0-0-20,s=255,c=3,t=27,pt=1,l=1,sg=0:1
MCO:PIM:NODE REG=1
MCO:BGN:STP
TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=47,pt=0,l=8,sg=0,ft=0,st=OK:Starting
***In Setup
 ** Hello from the Water Sensor on a M0 **
 Soil Moisture Sensor 1.1a
 /Users/lafleur/Desktop/MySensor-Arduino-development/Arduino_fork/Soil_Moisture_Sensor_R1.1-RFM95/Soil_Moisture_Sensor_ Dec 28 2016, 10:12:32 

 My Node ID: 20

Setting Time on DS3231 
MCO:BGN:INIT OK,TSP=1
TSF:MSG:READ,0-0-20,s=1,c=1,t=47,pt=0,l=8,sg=0:Starting
TSF:MSG:ACK
Moisture 1: 13 Res: 10100
TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=27,pt=4,l=4,sg=0,ft=0,st=OK:13
!TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:10100
Moisture 2: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=2,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=2,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
Moisture 3: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=3,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=3,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
Moisture 4: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=4,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=4,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=38,pt=7,l=5,sg=0,ft=1,st=OK:4.25
!TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=0,pt=1,l=1,sg=0,ft=0,st=NACK:65
Vbat: 4.25V 
Moisture 1: 13 Res: 10102
TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:13
!TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:10102
Moisture 2: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=2,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=2,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
Moisture 3: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=3,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=3,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
Moisture 4: 3 Res: 100000
TSF:MSG:SEND,20-20-0-0,s=4,c=1,t=27,pt=4,l=4,sg=0,ft=1,st=OK:3
!TSF:MSG:SEND,20-20-0-0,s=4,c=1,t=14,pt=5,l=4,sg=0,ft=0,st=NACK:100000
TSF:MSG:SEND,20-20-0-0,s=1,c=1,t=38,pt=7,l=5,sg=0,ft=1,st=OK:4.26
!TSF:MSG:SEND,20-20-0-0,s=255,c=3,t=0,pt=1,l=1,sg=0,ft=0,st=NACK:65
Vbat: 4.25V 

[scalz]

there are few things missing..

• what's your hardware for GW (mcu). i assume your node is atsam
• which radio? rfm95?

if this is rfm95, i think it's because the lib is still new and dev for the moment, but lot of work is done. Also note rssi is already implemented. not completely but it's there

[lafleur]

This post is deleted!

[lafleur]

Gateway is ESP8266 and radio is RFM95

[mpp]

How did you solve this finally?

I'm also experiencing a huge amount of NACK's. Adding large delays solves the NACK's but isn't an option as I want to use batteries.

[alexsh1]

@mpp 90-95% percent of my NACKs were solved by:

1. changing radio
2. installing or changing capacitor
3. changing the radio power supply