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Old 11-08-15, 01:37 AM   #31
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Here's a shot of the "prototype" control system... It's very cobbled, hasty, but seems to work as planned.



I am collecting relays, sensors, connectors and other components to build a more permanent control system. I got my hands on a bundle of DS18B20 digital temperature sensors. I connected 3 of them to a microcontroller with an SD card socket. Then I spent a little time developing some simple software to log temperature data to the SD card. It also allows me to dump the file across the serial port or USB cable back to the PC. Here's a graph of some raw data from Thursday.


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