On Fri, 14 Jul 2023 09:27:12 +0200 Bruno Kleinert <fu...@debian.org> wrote:
> Hello, > > I'm looking for a wireless way to measure temperature and humidity > indoor with hardware off the shelf and software included in Debian 12 > bookworm. > > Sensors --> Radio --> Receiver --> Any typical PC interface, e.g., > USB, Ethernet. > > I don't need a visual interface, but plan to process measured values > in shell scripts. > > Do you have any hardware recommendations and can you share experience? > > I've used a DHT22 for a few years for this. https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf Hardware off the shelf but not software. I have a pair of XBee (Zigbee compatible) radio transceivers, an Arduino at the sensor end to format and time the data a bit, and a serial-USB converter to put the receiver output into my server. Then a bit of scripting to log the received data, and a bit of PHP to make a 7-day graph web page of T and H. Boot script to set up the serial port and initiate logging on reboot. There are probably better and cheaper ways to do it now. I had a spare pair of XBees, but Chinese 433MHz PCBs are much cheaper. On the other hand, you need to add your own validation to make sure you're not trying to interpret nearby doorbell rings and weather stations. The XBees have serial numbering and other features built in, in fact you need the manufacturer's application (Windows only, of course) to configure them. -- Joe