Category: IoT
-
Waking up the screen of FireHD tablet using YAKK app
If you read this on fediverse and the layout is off, here’s the link to the original blog post with a nice text & pictures layout. I replaced my current setup of waking up the #FireHD (#HomeAssistant dashboard). A while ago I complained about issues related to waking up the FireHD tablet screen when I…
-
E-ink info screen at the front door
So I built a small E-ink (ESP32) info screen for the front door. Link to the original blog post with a nice text & pictures layout. The problem: When leaving the house, it’s nice to see some information displayed at the door, like temperatures, weather and messages for the kids etc. Actually, there is no…
-
Yet Another ESP32 Webcam
Link to the original blog post with a nice text & pictures layout. The problem: I used an old phone with an Android IP Webcam app to check my driveway, but it stopped working after 3 days. Then I had to reset it – this means going up the ladder every single time. I couldn’t…
-
Bathroom dehumidifying using a floating humidity threshold
Blog: Bathroom dehumidifying using two sensors and a floating humidity threshold. Link to the original blog post with a nice text/pictures layout. The problem: The bathroom fan is running too long if it’s raining outside. A year ago I automated the dehumidifying of the bathroom using an extraction fan, Sonoff mini switch, Xiaomi Mi BLE…
-
Homemade ESP32 webcam
Homemade ESP32 webcam Link to the original blog post with a nice text/pictures layout. The problem: I want to see what’s happening around the house, especially if the dog is naughty again and digging holes. Actually, there is no problem. I just like to tinker. The solution: A cheap webcam (10€) integrated in #homeassistant. HW…
-
Unlocking the front door using the mobile phone and Home Assistant
Link to the original blog post with a nice text/pictures layout. The problem: The solution: HW parts: SW: The process: Here’s the doodle of the connecting scheme: Here’s the original connecting scheme from Innotherm (door manufacturer), in Slovenian: It was useful because it reveals which power supply is appropriate (Meanwell MW HDR 30-24). 7. Fitted…
-
How I killed e-ink display
TL:DR: I don’t know how, but it no longer works. In the previous post, I shared the joy of making #ESP32 #Lilygo T5 2.13′ e-ink display finally work and show some sensor data from #homeassistant. The joy lasted only a week. Yesterday I decided I’d print a nice case for it. I found a great…
-
E-ink display showing temperatures from Home Assistant
I had this #esp32 #lilygo board* laying in the drawer for more than 2 years. I tried several times to make the e-ink display work without success.Today I flashed it again with the latest #esphome firmware, stole some code from the web, tinkered for 2 hrs with #yaml and lambdas and whatnot and suddenly… it’s…
-
Home Assistant and nice statistics graphs
One of the things that bothered me in #homeassistant for more than a year was the following: I couldn’t figure out why some entities/sensors can draw nice longterm statistics graphs like this (with average, max, min values): and some show only bulky history charts (10 days of data) like this: #til Today I learned I…
-
Detecting movement in Home Assistant using Ikea Vallhorn sensor
I’ve bought some #Ikea #Vallhorn motion sensors for 8€ a piece. (see info here) Pairing to the #Zigbee network in #HomeAssistant and #Zigbee2MQTT was somehow difficult, which is not usual for Zigbee devices (at least according to my limited experiences with them). Nevertheless, I succeeded in pairing them. Unsuccessful attempts Firstly I tried to pair…