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How to set up a lightweight web server on Raspberry Pi
If you would like to use this photo, be sure to place a proper attribution linking to xmodulo.com
Soon to be the prototype for the affordable way of opening up your front door. I was diligent enough to get in the ordering line for a Raspberry Pi super early, and so the $35 machine arrived today. It is pretty.
now you pick up the handset and it plays 6music, hang up and it stops www.suppertime.co.uk/blogmywiki/2015/01/rotary-phone/
Optical time-lapse video from a Raspberry PI
Hostname: xenon
Run Time: 1446964806
Sunrise: 2015-11-08 05:41:39.000006
Sunset: 2015-11-08 17:58:21.000006
delta: 6.14 seconds
Captured Time: 2015-11-08 17:59:07.159555
Youtube: youtu.be/Yb-FtznBPrM (higher resolution and nicer playback)
Uses the Microchip MCP3424 ADC. Various build options are possible, including single-ended and/or double-ended inputs to the ADC, separate analogue voltage supply (via DC-DC converter and linear regulator). Two open-drain outputs enable switching of fans, relays etc. There are connectors for the buffered I2C interface and a 1-wire interface.
I have several intended uses for these PCBs, including a Raspberry Pi magnetometer and a temperature sensor/fan controller board for an auroral camera.
For source files see github.com/stevemarple/RPi_ADC_hat