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Controlling older air conditioners with Arduino and Megunolink

Controlling older air conditioners with Arduino and Megunolink

Although controlling contemporary electrical devices with an Arduino or compatible board can be done quite easily, target devices with larger mechanical controls may seem out of reach. However with some thought and a 3D printer you can also control these older devices and this has been demosntrated by the team from Blue Leaf Software with their Arduino and Megunolink-controlled classic air conditioner.

An Arduino with a temperature sensor is used to measure the ambient environment, and sends the data back to a PC running the Megunolink software – which then determines in conjunction with user data when the air conditioner should be on or off. In this example the control panel for the air conditioner uses rotary knobs, and thus a 3D-printed servo bracket was created to fit over the control knob – and with a strong servo can be controlled by the Arduino.

This is a great demonstration of the Megunolink software and also interfacing older devices with an Arduino. To learn how, visit the project’s website. And for more, we’re on twitter, facebook and Google+, so follow us for news and product updates as well. 



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