and some pictures

hello @monte
thanks for your feedbacks

monte about 4 hours ago
You don't need resistors to drop voltage on data pins for NRF24, they are 5V tolerant

for generic nrf24+ module yes i know
but that's not what the e01-ml01sp4 datasheet is saying, so i prefer to be prudent, it can't do any arm ("ça mange pas de pain" in french)

Also you don't need SO much capacitance 4,7uF is enough for stable work, as per my experience. Better add second cap 0.1uF in parallel to the big ones.

do you mean 4.7uF for C1 instead of 47uF?
and where would you put the 0.1uF ? on the output of ams1117 or in the input of nrf24 ?

Also, why is AMS1117 connected to ground via resistor?

i can't explain it as i don't fully understand it, i followed this tutorial https://maker.pro/arduino/projects/how-to-use-ams1117

IRQ pin does nothing in current (and probably the last) version of MySensors, so you can skip routing it if it will help you in any way.

ok, good to know, my pcb is already ordered but i'll remember that for my coming nodes.

in current (and probably the last) version of MySensors

may i ask why, what do you mean ?
i'm new here, and as a free software enthusiaste developper discovering home automation since 2 years now (expensive closed zwave, closed zigbee then closed ptvo), i was super glad to finally find a project like mysensors, and on my way to explore it, i progressively understand that it's not as active as it was

hi electrick,
thank you for the hint, i'm so glad that someone finally talks to me
Yes i reached the same conclusion about power supply of the nrf24 board.
3.3V pin from nano can only deliver 50mA when e01-ml01sp4 needs 120mA.
I redesigned my project including a ams1117 between nano's 5V pin and the radio board
https://forum.mysensors.org/topic/12109/nano-e01-ml01sp4-gateway/4?_=1679247873047
next episode when i'll receive the new pcb !

i refactored entirely again my gateway as 3.3V pin from nano is not powerful enough (50mA) for the e01-ml01sp4 (120mA)
nano is rebooting when attempting connexion or serial reading

here is the new schematic and pcb

and some pictures

Hi,

i built a serial gateway with a nano and E01-ML01SP4 nrf24 ebyte module
https://www.ebyte.com/en/product-view-news.aspx?id=114

i posted about it here https://forum.mysensors.org/topic/12109/nano-e01-ml01sp4-gateway

the problème is the gate way is rebooting alone each time i try to read the serial

of course my controler (HA) can't get the data as the gateway is always rebooting

my node (wich is working with an other nrf24 gateway) can't connect neither

my gateway sketch is default one with

// Enable debug prints to serial monitor
#define MY_DEBUG
#define MY_DEBUG_VERBOSE_GATEWAY
#define MY_DEBUG_VERBOSE_RF24

// Enable and select radio type attached
#define MY_RADIO_RF24
//#define MY_RADIO_NRF5_ESB
//#define MY_RADIO_RFM69
//#define MY_RADIO_RFM95

// 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

//#define MY_RF24_CE_PIN (12)
//#define MY_RF24_CS_PIN (13)
//#define MY_RF24_IRQ_PIN (5)


// Enable serial gateway
#define MY_GATEWAY_SERIAL

// Define a lower baud rate for Arduinos running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
#if F_CPU == 8000000L
#define MY_BAUD_RATE 38400
#endif

// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
#define MY_INCLUSION_BUTTON_FEATURE

// Inverses behavior of inclusion button (if using external pullup)
//#define MY_INCLUSION_BUTTON_EXTERNAL_PULLUP

// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 180
// Digital pin used for inclusion mode button
#define MY_INCLUSION_MODE_BUTTON_PIN  3

// Set blinking period
#define MY_DEFAULT_LED_BLINK_PERIOD 300

// Inverses the behavior of leds
//#define MY_WITH_LEDS_BLINKING_INVERSE

// Flash leds on rx/tx/err
// 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_RF24_CHANNEL 14

// signing
#define MY_SIGNING_SIMPLE_PASSWD "MYAWSOMEPASSWD"

#include <MySensors.h>

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

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

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

i can't figure what is going out
some help would be really appreciated

---- Opened the serial port /dev/ttyUSB2 ----
0;255;3;0;9;0 MCO:BGN:INIT GW,CP=RNNGAS--,FQ=16,REL=255,VER=2.3.2
0;255;3;0;9;39 TSM:INIT
0;255;3;0;9;41 TSF:WUR:MS=0
0;255;3;0;9;45 RF24:INIT:PIN,CE=9,CS=10
0;255;3;0;9;48 RF24:SBY
0;255;3;0;9;50 RF24:WBR:REG=0,VAL=14
0;255;3;0;9;58 RF24:WBR:REG=3,VAL=3
0;255;3;0;9;61 RF24:WBR:REG=4,VAL=95
0;255;3;0;9;64 RF24:WBR:REG=5,VAL=14
0;255;3;0;9;68 RF24:WBR:REG=6,VAL=39
0;255;3;0;9;71 RF24:WBR:REG=29,VAL=4
0;255;3;0;9;74 RF24:RBR:REG=29,VAL=4
0;255;3;0;9;77 RF24:RBR:REG=6,VAL=39
0;255;3;0;9;81 RF24:RBR:REG=5,VAL=14
0;255;3;0;9;84 RF24:WBR:REG=2,VAL=2
0;255;3;0;9;88 RF24:WBR:REG=1,VAL=0
0;255;3;0;9;91 RF24:WBR:REG=28,VAL=3
0;255;3;0;9;95 RF24:FRX
0;255;3;0;9;97 RF24:FTX
0;255;3;0;9;99 RF24:WBR:REG=7,VAL=112
0;255;3;0;9;102 TSM:INIT:TSP OK
0;255;3;0;9;105 TSM:INIT:GW MODE
0;255;3;0;9;108 RF24:WBR:REG=2,VAL=3
0;255;3;0;9;111 RF24:WBR:REG=1,VAL=1
0;255;3;0;9;114 RF24:STL
0;255;3;0;9;117 RF24:WBR:REG=0,VAL=15
0;255;3;0;9;120 RF24:WBR:REG=10,VAL=0
0;255;3;0;9;123 TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;128 MCO:REG:NOT NEEDED
0;255;3;0;14;Gateway startup complete.
0;255;0;0;18;2.3.2
0;255;3;0;9;132 MCO:BGN:STP
0;255;3;0;9;139 RF24:RBR:REG=6,VAL=39
0;255;3;0;9;142 RF24:RBR:REG=5,VAL=14
0;255;3;0;9;145 MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;149 TSM:READY:NWD REQ
0;255;3;0;9;152 RF24:SPL
0;255;3;0;9;154 RF24:WBR:REG=0,VAL=14
0;255;3;0;9;157 RF24:OWP:RCPT=255
0;255;3;0;9;160 RF24:WBR:REG=10,VAL=255
0;255;3;0;9;164 RF24:WBR:REG=16,VAL=255
0;255;3;0;9;167 RF24:TXM:TO=255,LEN=7
0;255;3;0;9;172 RF24:FTX
0;255;3;0;9;174 RF24:WBR:REG=4
---- Closed serial port /dev/ttyUSB2 due to disconnection from the machine ----
---- Reopened serial port /dev/ttyUSB2 ----
0;255;3;0;9;0 MCO:BGN:INIT GW,CP=RNNGAS--,FQ=16,REL=255,VER=2.3.2
0;255;3;0;9;40 TSM:INIT
0;255;3;0;9;43 TSF:WUR:MS=0
0;255;3;0;9;45 RF24:INIT:PIN,CE=9,CS=10
0;255;3;0;9;49 RF24:SBY
0;255;3;0;9;51 RF24:WBR:REG=0,VAL=14
0;255;3;0;9;59 RF24:WBR:REG=3,VAL=3
0;255;3;0;9;62 RF24:WBR:REG=4,VAL=95
0;255;3;0;9;65 RF24:WBR:REG=5,VAL=14
0;255;3;0;9;68 RF24:WBR:REG=6,VAL=39
0;255;3;0;9;71 RF24:WBR:REG=29,VAL=4
0;255;3;0;9;75 RF24:RBR:REG=29,VAL=4
0;255;3;0;9;78 RF24:RBR:REG=6,VAL=39
0;255;3;0;9;81 RF24:RBR:REG=5,VAL=14
0;255;3;0;9;84 RF24:WBR:REG=2,VAL=2
0;255;3;0;9;89 RF24:WBR:REG=1,VAL=0
0;255;3;0;9;92 RF24:WBR:REG=28,VAL=3
0;255;3;0;9;95 RF24:FRX
0;255;3;0;9;97 RF24:FTX
0;255;3;0;9;100 RF24:WBR:REG=7,VAL=112
0;255;3;0;9;103 TSM:INIT:TSP OK
0;255;3;0;9;106 TSM:INIT:GW MODE
0;255;3;0;9;109 RF24:WBR:REG=2,VAL=3
0;255;3;0;9;112 RF24:WBR:REG=1,VAL=1
0;255;3;0;9;115 RF24:STL
0;255;3;0;9;117 RF24:WBR:REG=0,VAL=15
0;255;3;0;9;121 RF24:WBR:REG=10,VAL=0
0;255;3;0;9;124 TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;129 MCO:REG:NOT NEEDED
0;255;3;0;14;Gateway startup complete.
0;255;0;0;18;2.3.2
0;255;3;0;9;133 MCO:BGN:STP
0;255;3;0;9;139 RF24:RBR:REG=6,VAL=39
0;255;3;0;9;143 RF24:RBR:REG=5,VAL=14
0;255;3;0;9;146 MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;149 TSM:READY:NWD REQ
0;255;3;0;9;152 RF24:SPL
0;255;3;0;9;155 RF24:WBR:REG=0,VAL=14
0;255;3;0;9;158 RF24:OWP:RCPT=255
0;255;3;0;9;161 RF24:WBR:REG=10,VAL=255
0;255;3;0;9;165 RF24:WBR:REG=16,VAL=255
0;255;3;0;9;168 RF24:TXM:TO=255,LEN=7
0;255;3;0;9;172 RF24:FTX
0;255;3;0;9;175 RF24:WBR:REG=
---- Closed serial port /dev/ttyUSB2 due to disconnection from the machine ----
---- Reopened serial port /dev/ttyUSB2 ----
0;255;3;0;9;0 MCO:BGN:INIT GW,CP=RNNGAS--,FQ=16,REL=255,VER=2.3.2
0;255;3;0;9;39 TSM:INIT
0;255;3;0;9;41 TSF:WUR:MS=0
0;255;3;0;9;44 RF24:INIT:PIN,CE=9,CS=10
0;255;3;0;9;48 RF24:SBY
0;255;3;0;9;50 RF24:WBR:REG=0,VAL=14
0;255;3;0;9;58 RF24:WBR:REG=3,VAL=3
0;255;3;0;9;61 RF24:WBR:REG=4,VAL=95
0;255;3;0;9;64 RF24:WBR:REG=5,VAL=14
etc
etc
etc
...

home assistant logs

Logger: mysensors.transport
Source: runner.py:179
First occurred: 19:54:22 (99 occurrences)
Last logged: 22:38:52

device reports readiness to read but returned no data (device disconnected or multiple access on port?)


Logger: mysensors.gateway_serial
Source: runner.py:179
First occurred: 19:54:22 (1033 occurrences)
Last logged: 22:49:22

Unable to connect to /dev/ttyUSB2

hello,

i updated my project as i stupidly inverted the pins on the e01-ml01sp4 footprint ...
i refactored the pcb and also added status led and inclusion button.

Hi,

I am design my first gateway, serial, (waiting for the parts to be delivered) with an arduino nano and a E01-ML01SP4 module.
Before i order the pcb i wanted to ask the community if my drawings were right.
My questioning are :

• 1: about logical level conversion, i choose to go with a simple resistive bridge divider as with spi lines are one way. Do you think its ok or should i go with a more sofisticated solution, like bss138 level shifter, or 74AHCT125N, or TXS0108E ?

• 2: about my wiring on the pcb, does my design is correct regarding interference and SPI data transfert, which i understand is a critical point

• 3: is it ok to power the E01-ML01SP4 module with the 3.3V out of the arduino nano (i added a 47µF Cap to ground just before the module)

here are my schematics and pcb design

TOP (with nano, E01-ML01SP4, and full ground zone, i am imaging that's good for interferences)

BOTTOM (with the resistors)

thanks for your advises

Hello mysensors's community,

First of all thank you for the great amount of information you are making available here !
I am a french web dev and sys admin and i do automation since a few years now, with HA as a controller (which i love) and rfxcom 433mHz, zwave adn zigbee nodes.
Recently i started to build custom zigbee nodes with PTVO but as i usually use exclusively free and open source tools i had a little 'cas de conscience' with it. And then i discovered mysensors with great great pleasure.
I ordered a bunch of parts from AE and while i am waiting for it i am designing my pcbs, and of course i have some questions.
So i thought it was the right time to make a proper presentation, so here i am