Control miniature rotary encoder with just one finger

27th March 2015

Siobhan O'Gorman

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A miniature rotary encoder, which includes an illuminated 8+1 joystick, enabling seamless, accurate control using just one finger, has been introduced by Elma Electronic. The Multi Wheel Encoder features a Hall effect sensed incremental encoder output and 12 detents with magnetic indexing to ensure proper alignment and positioning through the life of the encoder.

The device comes standard with IP66 sealing, with an outer O-ring ensuring secure front panel sealing. Measuring 10.5x30mm, the switch incorporates a low profile design for easy incorporation in space constrained environments.

The compact, reliable and long-life rotary encoder is suitable for test and measurement in outdoor environments as well as for use in industrial control environments. The Multi Wheel Encoder is also well suited for aviation cockpits and for transportation and construction applications.

Front or rear mounting is easily accomplished using two self-tapping screws that are driven into the switch’s hard polycarbonate body. The front end is metal with clear or black matte plating for a sleek, durable finish.

The device’s communication interface incorporates a UART output that sends an 8-bit command for every encoder step and joystick actuation, as well as an LED control input with a proprietary protocol.

The independently-controlled, backlit LED offers full colour RGB spectrum with different brightness levels.

Encoder life is 1m revolutions and joystick life is 500,000 actuations. Operating temperature is -20 to +70°C and a 3VDC power supply is required for proper Hall sensor operation. Pricing for volume quantity is as low as $10.