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Monthly Archive for August, 2010

Mini Maker Faire and WaterFire at Providence

Posted in Maker Faire on Aug 29th, 2010

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Meet the Arduino WaterValveShield

Posted in Sprinkler Projects on Aug 21st, 2010

After finishing the previous minty water valve controller, I decided to make it an Arduino shield. This way, I can easily stack it onto other shields and extend its capability. I also added a few input buttons, and a DS1337 real-time clock, so that it can keep up with accurate time. Now the circuit has […]

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Multiple button inputs using Arduino analog pin

Posted in Arduino on Aug 8th, 2010

At times I feel short of digital pins on the Arduino to handle multiple button inputs. Here is an easy way to use 1 analog pin to handle many input buttons. The way it works is very straightforward: use a resistor network as voltage dividers, and then let each button feed a different voltage to […]

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How to control Orbit 62035 valve

Posted in Sprinkler Projects on Aug 2nd, 2010

As an update to my previous post, I took a look at the Orbit 62035 valve, which works with the older Orbit’s yard watering system 62032. This valve is white colored, and has a standard 3-pin 3.5mm stereo audio plug. To figure out how to control the valve, my initial guess is that the valve […]

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