An automation solution for astronomical observatories

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Meteostation. Web Interface

One you have constructed and installed your indiduino meteostation,  you can install the web interface to see what is going on.

meteostation_web0 meteostation_web1

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Every observatory need a meteostation thus here is the induino version!


  • High precision barometer.
  • Relative Humidity (HR) reading.
  • Dewpoint calculation.
  • Far sky temperature using Infrared Thermometer for determining cloud cover.
  • Photocell to read sun radiance  levels.
  • One internal thermometer.
  • Two external thermometer.
  • Clouldy, dewing, freezing and daylight digital flag.
  • Sensor malfunction flags.
  • Web Interface with historical data.

meteostation0 meteostation1

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Controlling a stepper motor could be great for move several precision mechanical devices such focuser, filterwheel, etc.. In this example we use a modificated firmware for controling a stepper motor througth a EasyDriver Board.

First of all you have to flash your arduino with INDIDUINOStepper.ino firmaware. This firmware include some  functions to cach the standard firmata behaviour and doing something more elaborated. We also use a Arduino  AccelStepper library called from this custom firmware, thus it must be installed on your system.

Then connect the easyDriver to the VCC/GND and the coils of your stepper. Read EasyDriver documentation to do this. Finally connect  arduino pins to the easydriver control signals in this way:

  • pin 9 -> steps
  • pin 8 -> dir
  • pin 7 -> sleep


stepper device

Arduino firmware: INDUINOStepper-2.3
skeleton file: stepper_sk.xml

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All inputs

Read up to 12 digital inputs.

Adapting electronic is not need if the inputs are already TTL (0V->OFF, 5V-ON). If its not the case add additional circuits as needed.

digital inputs

To install on your computer see How to Install Drivers 
Arduino firmware: StandardFirmata-2.3
skeleton file: digital_inputs_sk.xml

Customize your device editing skeleton file and change "INPUT 0" for the real name of the input plug in.

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Basic switcher

This is the easy one. Switch on/off your loads connecting your arduino board to a relay board like this one:

You can switch on/off up to 8 loads each within this limits AC 250V/10A or DC 30V/10A. Connect arduino pins from 2 to 8 to the relay board channels 1 to 8 and also VCC and GND arduino pins to VCC/GND pins

See hardware  in Dealextreme

To install on your computer see How to Install Drivers
arduino firmware: StandardFirmata-2.3
skeleton file: switcher_sk.xml

switcher control

Customize your device editing skeleton file and change "SOCKET 0X" for the real name of the device plug in.