[Solved] NRF24L01+ Serial Gateway not starting ( Sanity check failed )

  • Hello Guys,

    i tried to build my first mySensors - Serial Gateway.
    It does not seem to work, since the serial monitor gives the following output messages:

    0;255;3;0;9;Starting gateway (RNNGA-, 2.0.0)
    0;255;3;0;9;RF24:write register, reg=0, value=14
    0;255;3;0;9;RF24:write register, reg=3, value=3
    0;255;3;0;9;RF24:write register, reg=4, value=95
    0;255;3;0;9;RF24:write register, reg=5, value=76
    0;255;3;0;9;RF24:write register, reg=6, value=35
    0;255;3;0;9;RF24:read register, reg=6, value=255
    0;255;3;0;9;RF24:read register, reg=5, value=255
    0;255;3;0;9;RF24:Sanity check failed: configuration mismatch! Check wiring, replace module or non-P version
    0;255;3;0;9;RF24:write register, reg=0, value=12
    0;255;3;0;9;RF24:power down

    I setup my software like this:

    1. Download and install Arduino IDE.
    2. In Arduino IDE, downloaded the MySensors library
    3. I took the sketch from the example GatewaySerial ( File/Examples/MySensors/GatewaySerial )
    4. Uploaded the sketch with these 2 additional Defines:
    #define MY_NODE_ID 124
    #define MY_DEBUG_VERBOSE_RF24

    Since i thought the problem could be, that i need a controller to get rid of those error messages, i put the my_node_id to a random value, and to get some more error details i put the verbose_rf24 in the defines.

    So the final sketch, that i'm uploading is:

     * 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.
     * The ArduinoGateway prints data received from sensors on the serial link. 
     * The gateway accepts input on seral which will be sent out on radio network.
     * The GW code is designed for Arduino Nano 328p / 16MHz
     * Wire connections (OPTIONAL):
     * - Inclusion button should be connected between digital pin 3 and GND  
     * - RX/TX/ERR leds need to be connected between +5V (anode) and digital pin 6/5/4 with resistor 270-330R in a series
     * LEDs (OPTIONAL):
     * - To use the feature, uncomment MY_LEDS_BLINKING_FEATURE in MyConfig.h
     * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
     * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
     * - ERR (red) - fast blink on error during transmission error or recieve crc error 
    // Enable debug prints to serial monitor
    #define MY_DEBUG 
    // Enable and select radio type attached
    #define MY_RADIO_NRF24
    //#define MY_RADIO_RFM69
    // Set LOW transmit power level as default, if you have an amplified NRF-module and
    // power your radio separately with a good regulator you can turn up PA level. 
    #define MY_RF24_PA_LEVEL RF24_PA_LOW
    // Enable serial gateway
    // Define a lower baud rate for Arduino's running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
    #if F_CPU == 8000000L
    #define MY_BAUD_RATE 38400
    // Flash leds on rx/tx/err
    // Set blinking period
    // Inverses the behavior of leds
    // Enable inclusion mode
    // Enable Inclusion mode button on gateway
    // Inverses behavior of inclusion button (if using external pullup)
    // Set inclusion mode duration (in seconds)
    // Digital pin used for inclusion mode button
    // Uncomment to override default HW configurations
    //#define MY_DEFAULT_ERR_LED_PIN 4  // Error led pin
    //#define MY_DEFAULT_RX_LED_PIN  6  // Receive led pin
    //#define MY_DEFAULT_TX_LED_PIN  5  // the PCB, on board LED
    #define MY_NODE_ID 124
    #define MY_DEBUG_VERBOSE_RF24
    #include <SPI.h>
    #include <MySensors.h>  
    void setup() { 
      // Setup locally attached sensors
    void presentation() {
     // Present locally attached sensors 
    void loop() { 
        // Send locally attached sensor data here 

    The OS I'm using running arduino IDE:
    Windows 10 ( I also tried it with my macbook pro MacOs X, same result. )

    The Hardware, that I'm using:

    1. Arduino Nano with CH340g Chip ( Working without manually installing driver on win10 )
    2. NRF24L01+, The text on the chip is:
      NRF M
    3. Capacitor 4.7uF
    4. Jumper Cables
    5. Usb - to MicroUsb Cable
    6. Board

    What i tried so far:

    1. Replacing the NRF24L01+ with ones from a different manufacturer.
    2. Downloading MySensors API manually from Homepage and copy paste the sample from the MySensors Site.
    3. Re-wiring all the components.
    4. Searching forum and google for similar problems.

    Sadly, nothing of this helped me so far.

    Here's how i wired things up:
    Note: For simplicity i used the same colors for my cables as the ones in the example


    If you have any ideas what i could have missed, or what i could try to get it working, please let me know.
    Thank you in advance.

  • Hardware Contributor


    have you missed to solder pinheaders to your arduino nano ? on the pics it looks like..
    That would explain your miswiring error in log.

    I hope this helps.

  • Thank you so much, scalz.
    That solved my problem.
    Just soldered them and now it works.

    It really seems the arduino needs a good wired connection in order to work.

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