Looking for some advice. I’d like to get a pir and siren for my garden shed, but there is no power at present and it’s not close to the house. Probably 15 metres from the nereast wifi access point, and s poor signal. I’ll do some further checks, but was thinking that WiFi is rather power hungry, but zwave is expensive and ZigBee is difficult to get working. I also believe there is some work happening to create some new standards in this area, so not sure what to do. Perhaps a cheap shed alarm for the time being?
If there’s no electricity available, is the plan to install a battery-powered PIR in the shed and have it communicate with Home Assistant (via some technology) inside your house which is connected to a siren?
They are cheap and flexible and readily available. (Edit - and last a fair time on batteries)
For door and window sensors I use the GS-WDS07, it has the advantage of sending a message on both open and close, plus low battery. Between $6AU and $8AU each. These are also good because you can do other things with the circuit board, like make 433Mhz light switches.
For PIR I use the Sonoff (Itead) PIR, less than $15AU each.
These are tied into HA using the Sonoff 433Mhz bridge, running Tasmota. Alarm triggers play a siren on Google Home and send me a SMS.
I am looking at integrating a siren, I have ordered the Digoo DG-ROSA 433MHz siren/strobe to test. Currently on special on Banggood.
Hi, yes the plan was to use some sort of battery PIR and siren. I’ve now come to the conclusion that it would be much better to get power to the shed and use that. I would like to integrate this with HA for notifications and other alerts, so I’m going to go down that route now.
However, I am still interested in RF 433 MHz to communicate with the HA system in the house, so will look into that.
For the past year I have been using similar to @zoogara - a Sonoff 433MHz bridge in the house, flashed with Tasmota, and some RF door and motion sensors that are battery controlled. Has worked very well, but I always worry that I won’t notice when the batteries run out.
I have just installed a new summer house around 30-40 metres from the house, and wanted power for lights/security etc. Running mains power was going to be very expensive, so I bought a 120W solar panel and controller, and a leisure battery, for reliable 12V power. My plan this weekend is to use wired PIRs and door sensors and a cheap 12v siren/strobe with an ESP8266 running ESPhome to feed back to home assistant. This will be more relaible without the worries about battery life.