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Here's a great project, recommended to Gadget Master by our own
indomitable device-builder, EW's Technology Editor Steve Bush. It's the
Hotbox temperature logger.Whether its monitoring the temperature for home brewing beer, making marmalade or even checking to whether the sea water is warm enough to swim in, this logger could be the solution. No calibration required, says its inventor.
According to the website, the logger probes measure temperatures from -55°C to +125°C (-67°F to +257°F). No calibration
Here is the author's introduction:
"The PIC Arbiter acts as interface between one or more Dallas temperature sensors and a logging PC. There are 8 terminations or single wire busses. Each of the 8 busses can support up to 8 sensors. As many sensors can be installed as required, limited to a maximum of 64."Do check out the website - all the necessary info is present and correct. PIC source code, details of the display, a user manual, customisable background graphic, and an FAQ.
A nice touch for the site's background, too - old-style exercise book ruling, complete with red margin.
It's not pictured by the way - that's a New Jersey public temp. display!
(Picture - Aaaah Yesterday! When It Was Cooler! by Sister72, under Creative Commons Attribution Licence)
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