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• No more slow LCD [VIDEO]

  gulliverrr • 06/21/2019 at 07:36 • 0 comments

  One of the popular requests has always been the LCD UI. The LCD UI so far has been very sluggish due to the fact that we use the HABPanel. HABPanel is an addon of openHAB that allows easy UI modifications but on the other hand it is very heavy for our little Pi Zero CPU-wise.
  

  So we removed it and redesigned a new UI for the LCD (the phone app UI stays the same). It is based on pure HTML, CSS and Javascript and talks to openHAB via MQTT over websockets. We had to compile our own mosquitto server as the standard Raspbian package does not support websockets yet.
  We built a little proof-of-concept UI with just 2 buttons adjusting the temperature setpoint and from another tablet we observed the speed the change is propagated. The results prove us right on deciding to go that way.

  complete post
  

• HestiaPi + ESP = <3

  gulliverrr • 06/14/2019 at 16:26 • 0 comments

  So you’ve heard us brag about being open and all that, but how does this really help you? In this update you will see how easy it is to add a wireless relay without being tied to a specific vendor.

  Crowdfunding campaign has still a few days left and is already more than 100% funded!
  

  Please back our project!

  So the idea is to add a wireless relay contact anywhere in your house that will be fully integrated with your HestiaPi installation, and will accept commands from your phone or follow automated rules from HestiaPi itself. The relay contact can control almost any electrical device like lights, air conditioning units, pet feeders, or garden sprinklers. For this example we will use the cheap Sonoff socket, but any ESP-based module like NodeMCU or ESP8266/ESP32 will work exactly the same.

  Programming Tasmota

  First and most important, you will need to load your ESP with Tasmota. Tasmota unlocks a great range of functionality including MQTT support. All info and instructions are in the above link, including some of the important steps copied below.

  Configure Wi-Fi

  Tasmota provides a wireless access point for easy Wi-Fi configuration.

  Connect your device to a power source and grab your smartphone (or tablet or laptop or any other web and Wi-Fi capable device). Search for a Wi-Fi AP named sonoff-xxxx (where x is a number) and connect to it. In this example the Wi-Fi AP is named sonoff-7718.

  Wi-Fi manager server is active for only 3 minutes. If you miss the window you might have to disconnect your device from power and reconnect.

  After you have connected to the Tasmota Wi-Fi AP open http://192.168.4.1 in a web browser. Most devices will prompt you to sign in to Wi-Fi network which should also open the above address.

  At this page enter the following:

  AP1 SSid – your Wi-Fi network name

  SSID’s are case sensitive

  AP1 Password – password for your Wi-Fi AP

  Wi-Fi password has to be under 32 characters and without special characters (e.g. asterisks) or white spaces

  Recommended:

  AP2 SSid – alternative Wi-Fi network SSID

  AP2 Password – password for your alternative Wi-Fi AP

  If you’re not using a second Wi-Fi network you can enter an SSID without a password you can connect to as a backup in case something went wrong with your Wi-Fi credentials.

  Double Triple check the Wi-Fi credentials and click on Save to apply the settings. Device will restart and connect to your home network.

  MQTT

  Look in your router for a newly connected device with the same name as the Wi-Fi access point. (In this example sonoff-7718.)

  If you don’t have access to your router you can find your newly flashed device with an IP scanner:

  • Fing – for Android or iOS
  • Angry IP Scanner – open source for Linux, Windows and Mac. Requires Java.
  • Super Scan – Windows only free tool

  Open the IP address with your web browser and you have full access to Tasmota.

  Now is the time to set up MQTT, the last remaining, but equally important step.

  Configure MQTT using WebUI

  Go to Configuration -> Configure Other and make sure “MQTT Enable” box is checked. Once MQTT is enabled you need to set it up using Configuration -> Configure MQTT.

  While here, you might as well change the Friendly Name into something more descriptive than generic “Sonoff”.

  For a basic setup you only need to set Host and Port but it is recommended to change Topic to avoid issues. Each device should have a unique Topic.

  • Host = your HestiaPi address or IP
  • Port = set it to 1883
  • Client = device’s unique identifier, do not change if not sure what...

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