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THE SOTH JOURNAL

Home automation

Ideas, know-how, and a little inspiration for your connected home.

WORTH A CLOSER LOOK

Home automation

Door and window contact sensors: reed or Hall, gap, alignment and wired contacts

A contact sensor is the simplest device in a smart home, and it is still the one people most often mount wrong. Two pieces go on a door or window: a body with the electronics and a battery, and a smaller part with a magnet. When they are close, the sensor reports "closed". When the magnet moves away, it reports "open". Most problems come from those
Nov 3, 2026
7
min read

Code in HomeView Software 27.2 suggests Apple's smart display can work as a HomeKit Secure Video camera

Apple's HomeView smart display may get a second job as a security camera. Reddit user pdfu found settings text in HomeView Software 27.2 describing a mode that turns the display's built-in camera into a HomeKit Secure Video camera. AppleInsider and The Verge reported the find on 1 November 2026. Apple has said nothing about the feature, and HomeVie
Nov 2, 2026
2
min read

Raspberry Pi 5 16GB goes up by $80 to $385, and 16GB Compute Module 5 boards rise by $40

Raspberry Pi raised prices on its highest-memory boards on 2 November 2026. In a post signed by Eben Upton, the company says the 16GB Raspberry Pi 5 now costs $80 more, at $385, and every 16GB variant of Compute Module 5 goes up by $40. The new CM5 prices are listed in the product brief on the Compute Module 5 page rather than in the post itself.
Nov 2, 2026
2
min read

PM2.5 sensors at home: choosing a module and reading its numbers honestly

A laser particulate sensor is one of the most satisfying parts you can wire to an ESP board. Ten minutes after powering it up you have a live PM2.5 graph, and the first time you fry onions or light a candle you watch it jump. The hard part is not getting a number. It is knowing what the number means, how far to trust it and how long the sensor will
Nov 2, 2026
10
min read

Homematic IP app 3.9.13 adds geofencing, CarPlay and Android Auto, while the Android rollout runs late

eQ-3 started rolling out version 3.9.13 of the free Homematic IP app on 27 October 2026. The update makes the system react to where people are, puts the app on car screens and adds a second way to regain admin access after a phone is lost. The iOS release is going to plan. eQ-3 says the Android release through Google Play is delayed and will be rol
Nov 2, 2026
2
min read

A community Edge driver runs older Roombas from a SmartThings hub over local MQTT, without the iRobot cloud

A SmartThings community developer who goes by Stoeckie published an Edge driver on 30 October 2026 that lets a SmartThings hub control iRobot Roomba vacuums directly on the local network. The hub talks to the robot over the robot's own MQTT broker, with TLS on port 8883. There is no cloud service, no IFTTT and no extra computer in between. The code
Nov 2, 2026
3
min read