Ethernet Gateway with Nano - Invalid message length, 0 (actual) != 7 (expected)

[pihome]

Hi Guys,
back again with another problem; i m trying to build Ethernet gateway, it starts ok, gets ip but then it goes into some loop with this message on serial port:

0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7

Gateway Startup

⸮⸮⸮⸮=⸮0;255;3;0;9;MCO:BGN:INIT GW,CP=RNNGA--,VER=2.1.1
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSF:WUR:MS=0
0;255;3;0;9;TSM:INIT:TSP OK
0;255;3;0;9;TSM:INIT:GW MODE
0;255;3;0;9;TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;MCO:REG:NOT NEEDED
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
IP: 192.168.99.7
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7```

No Major change in code, 

```/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik EKblad
 * Contribution by a-lurker and Anticimex,
 * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de>
 * Contribution by Tomas Hozza <thozza@gmail.com>
 *
 *
 * DESCRIPTION
 * The EthernetGateway sends data received from sensors to the ethernet link.
 * The gateway also accepts input on ethernet interface, which is then sent out to the radio network.
 *
 * The GW code is designed for Arduino 328p / 16MHz.  ATmega168 does not have enough memory to run this program.
 *
 * LED purposes:
 * - To use the feature, uncomment MY_DEFAULT_xxx_LED_PIN in the sketch below
 * - RX (green) - blink fast on radio message received. In inclusion mode will blink fast only on presentation received
 * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
 * - ERR (red) - fast blink on error during transmission error or receive crc error
 *
 * See http://www.mysensors.org/build/ethernet_gateway for wiring instructions.
 *
 */

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_NRF5_ESB
//#define MY_RADIO_RFM69
//#define MY_RADIO_RFM95

#define MY_RF24_PA_LEVEL RF24_PA_MAX
//#define MY_DEBUG_VERBOSE_RF24
// RF channel for the sensor net, 0-127
#define RF24_CHANNEL     125
//RF24_250KBPS for 250kbs, RF24_1MBPS for 1Mbps, or RF24_2MBPS for 2Mbps
#define RF24_DATARATE 	   RF24_250KBPS


// Enable gateway ethernet module type
#define MY_GATEWAY_W5100

// W5100 Ethernet module SPI enable (optional if using a shield/module that manages SPI_EN signal)
//#define MY_W5100_SPI_EN 4

// Enable Soft SPI for NRF radio (note different radio wiring is required)
// The W5100 ethernet module seems to have a hard time co-operate with
// radio on the same spi bus.
#if !defined(MY_W5100_SPI_EN) && !defined(ARDUINO_ARCH_SAMD)
#define MY_SOFTSPI
#define MY_SOFT_SPI_SCK_PIN 14
#define MY_SOFT_SPI_MISO_PIN 16
#define MY_SOFT_SPI_MOSI_PIN 15
#endif

// When W5100 is connected we have to move CE/CSN pins for NRF radio
#ifndef MY_RF24_CE_PIN
#define MY_RF24_CE_PIN 5
#endif
#ifndef MY_RF24_CS_PIN
#define MY_RF24_CS_PIN 6
#endif

// Enable UDP communication
//#define MY_USE_UDP  // If using UDP you need to set MY_CONTROLLER_IP_ADDRESS below

// Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
//#define MY_IP_ADDRESS 192,168,99,166

// If using static ip you can define Gateway and Subnet address as well
//#define MY_IP_GATEWAY_ADDRESS 192,168,99,1
//#define MY_IP_SUBNET_ADDRESS 255,255,255,0

// Renewal period if using DHCP
//#define MY_IP_RENEWAL_INTERVAL 600

// The port to keep open on node server mode / or port to contact in client mode
#define MY_PORT 5003

// Controller ip address. Enables client mode (default is "server" mode).
// Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere.
//#define MY_CONTROLLER_IP_ADDRESS 192, 168, 178, 254

// The MAC address can be anything you want but should be unique on your network.
// Newer boards have a MAC address printed on the underside of the PCB, which you can (optionally) use.
// Note that most of the Arduino examples use  "DEAD BEEF FEED" for the MAC address.
#define MY_MAC_ADDRESS 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED

// Enable inclusion mode
//#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
//#define MY_INCLUSION_BUTTON_FEATURE
// Set inclusion mode duration (in seconds)
//#define MY_INCLUSION_MODE_DURATION 60
// Digital pin used for inclusion mode button
//#define MY_INCLUSION_MODE_BUTTON_PIN  3

// Set blinking period
#define MY_DEFAULT_LED_BLINK_PERIOD 300

// Flash leds on rx/tx/err
// Uncomment to override default HW configurations
//#define MY_DEFAULT_ERR_LED_PIN 7  // Error led pin
//#define MY_DEFAULT_RX_LED_PIN  8  // Receive led pin
//#define MY_DEFAULT_TX_LED_PIN  9  // Transmit led pin

#if defined(MY_USE_UDP)
#include <EthernetUdp.h>
#endif
#include <Ethernet.h>
#include <MySensors.h>

void setup()
{
    // Setup locally attached sensors
}

void presentation()
{
    // Present locally attached sensors here
}

void loop()
{
    // Send locally attached sensors data here
}```

[Yveaux]

@pihome said in Ethernet Gateway with Nano - Invalid message length, 0 (actual) != 7 (expected):

0;255;3;0;9;TSF:MSG:READ,0-0-0,s=0,c=0,t=0,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7

As you can see the gateway is only receiving zeroes, probably due to a radio communication problem.
See this thread for some suggestions on how to solve it.

[pihome]

@Yveaux
yes it looks like power issue, haven't fixed it yet but for future if some one stumbled upon this posts: gateway starts ok, but as soon as some message arrives gateway reset and controller lost connection with gateway (serial output below), i dont have inductor available to test suggested solution.
PS: i have tried supplying power from separate source to W5100, changed cap on nrf from 10uf to 100uf but no luck.

0;255;3;0;9;MCO:BGN:INIT GW,CP=RNNGA--,VER=2.1.1
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSF:WUR:MS=0
0;255;3;0;9;TSM:INIT:TSP OK
0;255;3;0;9;TSM:INIT:GW MODE
0;255;3;0;9;TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;MCO:REG:NOT NEEDED
IP: 192.168.99.7
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:BGN:INIT OK,TSP=1



0;255;3;0;9;TSF:MSG:READ,26-18-0,s=1,c=1,t=38,pt=7,l=5,sg=0:3.36
0;255;3;0;9;MCO:BGN:INIT GW,CP=RNNGA--,VER=2.1.1
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSF:WUR:MS=0
0;255;3;0;9;TSM:INIT:TSP OK
0;255;3;0;9;TSM:INIT:GW MODE
0;255;3;0;9;TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;MCO:REG:NOT NEEDED
IP: 192.168.99.7
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:BGN:INIT OK,TSP=1


0;255;3;0;9;TSF:MSG:READ,27-27-0,s=1,c=1,t=38,pt=7,l=5,sg=0:1.61
0;255;3;0;9;MCO:BGN:INIT GW,CP=RNNGA--,VER=2.1.1
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSF:WUR:MS=0
0;255;3;0;9;TSM:INIT:TSP OK
0;255;3;0;9;TSM:INIT:GW MODE
0;255;3;0;9;TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;MCO:REG:NOT NEEDED
IP: 192.168.99.7
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:BGN:INIT OK,TSP=1```

[Yveaux]

@pihome well, it sounds like this issue : https://www.google.nl/url?sa=t&source=web&rct=j&url=https://forum.mysensors.org/topic/4680/mysensors-2-0-ethernet-gateway-atmega-w5100-restart-all-time&ved=2ahUKEwiWhI_V07ncAhWPKVAKHRTzDh4QFjABegQIBhAB&usg=AOvVaw3McbF-Z_smHD4YYBNx5udV

[pihome]

@Yveaux
thank you for help, downgrading to the 1.16.11 version fixed the disconnection issue. now back to power problem, i have order inductors to test this but it need another 4 weeks :(

How to Change to version 1.116.11
172pilot: "Tools, Board, and at the top of the list, choose board manager, click in the window for "Arduino AVR Boards" and it will give you a pull-down for 'version' in the bottom left. Choose your 1.16.11 version, and click install.."

0;255;3;0;9;MCO:BGN:INIT GW,CP=RNNGA--,VER=2.1.1
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSF:WUR:MS=0
0;255;3;0;9;TSM:INIT:TSP OK
0;255;3;0;9;TSM:INIT:GW MODE
0;255;3;0;9;TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;MCO:REG:NOT NEEDED
IP: 192.168.99.5
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;TSF:MSG:READ,25-25-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
0;255;3;0;9;TSF:MSG:BC
0;255;3;0;9;TSF:MSG:FPAR REQ,ID=25
0;255;3;0;9;TSF:CKU:OK,FCTRL
0;255;3;0;9;TSF:MSG:GWL OK
0;255;3;0;9;TSF:MSG:SEND,0-0-25-25,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
0;255;3;0;9;TSF:MSG:READ,25-25-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
0;255;3;0;9;!TSF:MSG:LEN,0!=7
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
0;255;3;0;9;!TSF:MSG:SEND,0-0-25-25,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=NACK:0100
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=6,pt=1,l=1,sg=0:0
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=11,pt=0,l=18,sg=0:Temperature Sensor
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=12,pt=0,l=4,sg=0:1.35
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=0,c=0,t=6,pt=0,l=0,sg=0:
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=26,pt=1,l=1,sg=0:2
0;255;3;0;9;TSF:MSG:SEND,0-0-25-25,s=255,c=3,t=27,pt=1,l=1,sg=0,ft=0,st=OK:1
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=1,c=1,t=38,pt=7,l=5,sg=0:1.47
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=0,pt=1,l=1,sg=0:34
0;255;3;0;9;TSF:MSG:READ,25-27-0,s=0,c=1,t=0,pt=7,l=5,sg=0:29.5
0;255;3;0;9;TSF:MSG:READ,26-26-0,s=1,c=5,t=46,pt=7,l=5,sg=0:6.53
0;255;3;0;9;TSF:MSG:READ,26-26-0,s=255,c=3,t=0,pt=1,l=1,sg=0:77
0;255;3;0;9;TSF:MSG:READ,26-26-0,s=0,c=1,t=0,pt=7,l=5,sg=0:28.7
0;255;3;0;9;TSF:MSG:READ,21-21-0,s=0,c=1,t=0,pt=7,l=5,sg=0:24.1
0;255;3;0;9;TSF:MSG:READ,20-20-0,s=0,c=1,t=0,pt=7,l=5,sg=0:22.8
0;255;3;0;9;TSF:MSG:READ,0-0-255,s=255,c=3,t=20,pt=0,l=0,sg=0:
0;255;3;0;9;TSF:MSG:BC
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=1,c=1,t=38,pt=7,l=5,sg=0:0.38
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=255,c=3,t=0,pt=3,l=1,sg=0:37899
0;255;3;0;9;!TSF:MSG:LEN,9!=8
0;255;3;0;9;TSF:MSG:READ,26-26-0,s=255,c=3,t=0,pt=1,l=1,sg=0:77
0;255;3;0;9;TSF:MSG:READ,25-25-0,s=0,c=1,t=0,pt=7,l=5,sg=0:29.2```

[pihome]

Hi Guys,
while troubleshooting Ethernet gateway, i discover my arduino nano voltage on different pin as i wasn't sure from where to feed power to W51000 module just decided to check voltage on these three different pins and to my surprise all three gives different values . i can not find any decent schematic to check reason for these different voltage. can some shed some light please... i always thought 5v is straight from usb connector without any regulator etc...

voltage at USB connector 5.11v
VIN Pin 4.33v
5v Pin 4.76v

[Yveaux]

@pihome according to the arduino nano schematic 5v is connected through a diode to vusb; you'll see the voltage drop.
Vin is meant as input for the nano's voltage regulator. You should only feed power to it, not sink from it.

[pihome]

@Yveaux
thank you for reply, found something similar for 5v, just in case some one stumble upon this.

+5V	Output or Input	
+5V Output (From On-board Regulator) or
+5V (Input from External Power Supply

ref: http://www.circuitstoday.com/arduino-nano-tutorial-pinout-schematics