Stuff to do with Raspberry pi / domoticz etc.

Measuring CO2 using MH-Z19B and D1 mini pro

By Atomstar on Thursday 20 December 2018 20:59 - Comments (0)
Categories: ESP8266, Smarthome, Views: 2.743

In this article I describe how to measure CO2 levels using an MH-Z19B CO2 sensor connected to D1 mini pro and push these somewhere over wifi.

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Getting started with LOLIN D1 mini/DHT22 on Mac

By Atomstar on Thursday 20 December 2018 16:06 - Comments (5)
Categories: ESP8266, Smarthome, Views: 2.089

To augment my smarthome hub and feed it with more data, I'm experimenting with LOLIN ESP8266 boards from WeMos. Specifically, I have the LOLIN D1 mini Pro v2.0.0. In this post I document how I overcame some hurdles in getting this to work. See also this WeMos tutorial.

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Connecting sensors to Rpi (2/3)

By Atomstar on Sunday 2 December 2018 18:07 - Comments (0)
Categories: Linux, RaspberryPi, Smarthome, Views: 2.457

Here I describe the various sensors I connected to my RPi. Specifically:
  1. Kaifa DSMR 4.0/4.2 smart meter
  2. SMA sunnyboy PV inverter
  3. Honeywell Evohome thermostat
  4. Sensus analog water sensor
  5. Landis+Gyr Ultraheat digital 7-segment LCD heat meter


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Installing domoticz on raspberry pi (1/3)

By Atomstar on Sunday 2 December 2018 16:46 - Comments (1)
Categories: Linux, Smarthome, Views: 5.480

Although there are many guides on this topic available, I'm recording my personal setup here for my reference and with the hope that some issues I ran into will help others.

Goal

As goal for my Rpi/Domoticz project I had the following:
  • Record (smart) meter data and graph it
  • Cheap/low-power solution (i.e. no Intel NUC)
  • Versatile wrt interfaces (e.g. bluetooth/wifi/GPIO)


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Smarthome data logging with RPi/domoticz/influxdb/grafana

By Atomstar on Sunday 2 December 2018 16:01 - Comments (1)
Categories: Linux, Smarthome, Views: 1.884

When we got a smart meter and solar panels I wanted to record this data. Along the way I added more sensors and I've extended the software

Goals

  1. Record (smart) meter data and graph it (now including: electricity smart meter via USB, PV via bluetooth, heat meter via machine vision, water meter via line sensor, temperature via EvoHome)
  2. Log data in generic, long-lasting format locally (i.e. no externally hosted solution)
  3. Robust
  4. Interactive graphs on smartphone (domoticz, plot.ly, Highcharts, dygraphs)
  5. Customisable graphs (like grafana)
  6. Cheap/low-power solution (i.e. no Intel NUC)
  7. Versatile wrt interfaces (e.g. bluetooth/wifi/GPIO/USB)
  8. Not used to control or actuate. For that I use COTS products that work and don't crash :p


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