Resources
1-Wire Micro-Lan Sensor Networks (2011 project)
- Sheepwalk Electronics – UK – online store (UK only) and sample wiring guides; simple temperature sensor how-to; many pages of links and resources (some out-dated) with quite a bit of useful information.
- Maxim-ic.com – origins of 1-wire products, how-to, sensor specification sheets
- Thermd – excellent chart on connecting/networking devices using 1-wire solutions; the software daemon is on the ‘research list’…
- Hobby Boards – weather toys using 1-wire sensors; circuit boards for the brave DIY, board kits, sensors and more; enough documentation to build your own.
1-Wire Hardware Hacks and Implementation discussions/examples/products
- Build RS232 interface – third party quote: “Basically this circuit converts the RS232 signal levels to 5V and makes sure that the devices can get power in between data transfer bursts. With only five simple components, the cost does not exceed € 2 and the whole circuit can be crammed into a standard 9-pin D connector…“
- Jeroen Hoppenbrouwers Custom Temperature Sensor network using standard mono jacks – nicely illustrated and source of the previous link. Sensors are connected to a custom hub. Well documented project (actually one of the first I found while researching.)
- Ryan Finnie used off-the-shelf hardware – well document solution/approach using Debian, digitemp, MRTG, more…:
The products arrived Thursday, and I plugged the master into a server running Debian 5.0 Lenny. The LinkUSBi is a serial device with an internal FTDI FT232R USB UART, which was recognized by the ftdi_sio usb-serial module and set up as /dev/ttyUSB0. In case you have other ttyUSB devices on your machine, I devised this udev rule for more permanent device naming:
SUBSYSTEM=="tty", ATTRS{serial}=="?*", SYMLINK+="char/by-id/tty-$attr{serial}"
In this case it gives me /dev/char/by-id/tty-A800bZvc, but for the sake of simplicity I will continue to refer to the device as /dev/ttyUSB0 for the rest of this guide.
- Out Cool House – House Wide thermal management solution using 1-wire Micro-lans – this is a really interesting solution to home design taking advantage of natural energy as well as 1-wire monitoring/sensing solutions – along with quite a bit more.
- House Wide data logging solution – a product tied to Our Cool House.
