Posts made by thazlett

I actually didn't know that raspberry pi gateway was a thing! nice, i'll have to try that. I have been using a USB one since 1.5. I guess what i'm doing here is just more generic.

I have it running on an orange pi one right now and it's fine. I plan to move it to a r-pi zero w when I have some time. Perhaps put it all in a project box and place it strategically in the house.

To explain a little bit about what I did: A problem with socat I had was it seemed to garble the serial data between connected clients, making it useless with more than 1 client(I don't think that's a socat issue though, I think that's because more than one process is trying to access the tty device at once). Ncat fixes that by just repeating anything pushed into it to all connected clients. So it's ttyUSB0/1 <> socat <> ncat <> One of more clients.

Hopefully it's useful for people.

Standard USB MySensors gateway (Arduino Nano based) and an RFLink gateway(Arduino Mega based).

I have been trying out different controllers (I use domoticz right now and have for a while). Having a TCP/IP based gateway like the ESP8266 is useful for this as you can have multiple clients connect to it, unlike a USB/Serial based one.

What I ended up doing was using ncat (nmap package) and socat in this manner to basically create a linux based version of a TCP/IP based gateway. So I can use the USB/Serial based gateways here.

So far this seems to work with mysensors and rflink very well for me (run two instances for each serial port and tcp port. I did not find much info on this when I was googling around so I thought I would share:

#!/bin/bash

port=5003
serial=/dev/ttyUSB0
baudrate=b38400

ncat --listen --broker --keep-open 0.0.0.0 $port &
socat $serial,$baudrate TCP:127.0.0.1:$port &

My plan is to shove this on a pi zero w on start up with my rflink and mysensors gateways attached. Then I can just tell my controller(s) to connect to my 'gateway box' over my network. I could probably put it into a docker container or systemd/init script to do things a little cleaner(&) but hey, it works.

So I got another one of these and made a motion sensor version

I was thinking about making a multi sensor version of this. I have the sketches for many combinations of multi sensor sketches I have mashed together.

Hi all, this is my first actual post on here so be nice

I have been using MySensors with Domoticz on a Pi (original one) for a few months now. Very impressed with it and have had fun setting it up. I have coded a few of my own random little nodes. I have a number of projects planned based on MySensors. I have learned a lot with this project.

What I would like to do now is get my CC128 power meter to send data via MySensors. I have no real need to do this. I just feel like it. Currently it is connected via serial to another Pi. The Pi has a cronjob that runs every minute, this reads the serial/xml from the CC128. The cron/script grabs the watts and temp sensor values and posts them to domoticz via my WiFi / json url. In Domoticz I have some dummy devices which display those values.

Separate to this, the cronjob also sends the values off to a graphite/grafana server I have running on a VM. So I end up with a number of nice graphs. Domoticz graphs are also available to me in grafana via influx db.

Anyway, has anybody done this with MySensors before? I can't see that anyone has. From the research I have done this morning, I just need a way for an Arduino/Sensor node to read serial/xml from the CC128 and parse them to the gateway with the appropriate variables. Essentially a node would replace the cronjob/pi.

Any advice would be greatly appreciated! I will post any updates / progress I make here.

Some pictures of the device(s):

As you can see, I have the CC128 powered by an old phone battery + one of the cheap TP4056 chargers / USB connected. This is part of my other plan (to have everything sort of survive a power cut/outage)