Web Site: www.parallax.com Office: (916) 624-8333 Forums: forums.parallax.com Fax: (916) 624-8003 Sales: sales parallax.com Sales: (888) 512-1024 Technical: support parallax.com Tech Support: (888) 997-8267 Gimbal Joystick with Adapter ( 27808) This quad-bearing gimbal joystick provides a two-axis resistive output for controlling position, velocity, tilt, etc., as an input device to various microcontrollers, including Parallaxs P8X32A Propeller chip and BASIC Stamp family of modules. It may be used with microcontrollers that have analog inputs, with an external ADC, or with resistor-capacitor circuits for a purely digital solution. The Joystick comes pre-wired with a 6-wire cable and 1.5 mm plug. An adapter kit with a matching 1.5 mm socket is included, for convenient prototyping on breadboards or thru-hole boards. Simple soldering is required to use the optional but highly recommended adapter. Features 5 k linear-taper potentiometer on each axis Smooth ball-bearing action on both axes Selectable spring return-to-center on vertical axis Selectable detents and/or friction on vertical axis Adapter kit for 0.1 spacing is included for easy prototyping (simple soldering required) Specifications Power Requirements: Passive device will work with any low-voltage supply Interface: Resistive or voltage divider output Dimensions: 2.70 x 2.32 x 2.42 in (68.6 x 58.9 x 61.5 mm) Application Ideas Game controller Remote control for robotics Manual control for interactive displays Packing List Quad-Bearing Gimbal Joystick ( 27806) Adapter Kit ( 27809) (including PCB, two 3-pin headers, and 1.5 mm 6-connector socket) Resources and Downloads Find example code, the latest version of this document, and additional resources from the Gimbal Joystick product page. Go to www.parallax.com and search 27808. Copyright Parallax Inc. Gimbal Joystick with Adapter ( 27808) v1.0 11/26/2013 Page 1 of 9 Adapter Assembly Using the adapter kit is optional but highly recommended. The example wiring photos in this document assume you are using it. The underside of the adapter board PCB is labeled as shown at left. The top of the adapter board has pads to solder the 1.5 mm socket in place, as shown at right. (1) Put on your safety glasses (2) Begin by inserting the short ends of the 3-pin headers into the PCB from the underside. (3) Solder the 3-pin headers in place from the top of the board. (4) Solder the 1.5 mm socket in place on top of the board. Quick-Start Guide Voltage Divider Circuit The voltage divider is most basic circuit using the joystick: Vdd BLK BLU Horizontal Output Voltage YEL Horizontal 5K Pot ORG BRN Vertical Output Voltage Vertical 5K Pot GRN Quad-Bearing Gimbal Joystick The horizontal output voltage will increase as the joystick moves from left to right, from about 0.38 * Vdd (full left) to 0.63 * Vdd (full right). The center voltage is approximately Vdd / 2. The vertical output voltage covers the same range, increasing from bottom to top, with the center voltage also being Vdd / 2. Copyright Parallax Inc. Gimbal Joystick with Adapter ( 27808) v1.0 11/26/2013 Page 2 of 9