I haven't been following the OpenSprinkler project, but apparently they recently had a hardware and firmware update:
Announcing OpenSprinkler Hardware 2.1s (assembled), Firmware 2.0.4, and a GUI-based Firmware Upgrade Tool http://rayshobby.net/?p=8422 The main product seems to be a custom board with an ATmega644 MCU, 2-line LCD, and a bunch of screw terminals to attach up to 8 solenoid valves (expandable; $40 for 8 more valves), all in a nice plastic enclosure. It is Ethernet connected with a web interface and mobile app. It has support for a rain (or I assume moisture) sensor. The fully assembled product runs $150. Abut $100 for a D-I-Y kit, and about $75 each for a version that is a companion add-on board for popular development board platforms: Open-Source Sprinkler Extension Board for BeagleBone Black http://rayshobby.net/?page_id=7664 Open-Source Sprinkler / Irrigation Extension Board for RPi http://rayshobby.net/?page_id=5816 A bit surprising to see they bothered to design not only a stand-alone version, but two different add-on versions. That's going to make for thin resources for an open hardware project, subdividing the community into three groups, but I assume there is a fair bit of overlap in the hardware and front-end software like the mobile app. On a related note, a thread and an article on building moisture sensors: http://forum.arduino.cc/index.php/topic,37975.0.html http://www.instructables.com/id/Garduino-Gardening-Arduino/step4/Build-Your-Moisture-Sensor/ -Tom _______________________________________________ Hardwarehacking mailing list [email protected] http://lists.blu.org/mailman/listinfo/hardwarehacking
