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Gimbal Joystick with Adapter (#27808)

v1.2 11/13/2019 Page 6 of 9

include a deadband in the center, so that the spring-return value is guaranteed to be zero. The vertical

axis ranges from 0 to 1000 with no deadband.

Propeller Spin Object

The Spin object, joystick.spin, handles the scaling of the raw joystick data, transforming the

measurements into values that are more useful to a given application. The following graph illustrates this

process:

In this example of a center-return joystick, the input values can range from about 380 to 630. These are

rescaled to a –500 to +500 range, with a 50-unit-wide deadband in the center. See the object’s

comments for further details.

Содержание 27808

Страница 1: ...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 Smoo...

Страница 2: ...B 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...

Страница 3: ...llowing products provide two sigma delta ADC channels each Propeller Backpack 28327 S2 Robot hacker port 28136 28336 In addition one can deploy an external ADC such as the MCP3202 604 00060 in conjunc...

Страница 4: ...of 2 and 3 Joystick c http learn parallax com propeller c simple devices joystick include adcDCpropab h Include adcDCpropab include simpletools h Include simpletools int main Main function pause 1000...

Страница 5: ...600 50 500 500 joy setup 1 400 500 600 0 0 1000 repeat rawh adc in 0 rawv adc in 1 pst str string 1 Raw Joystick 11 13 Horiz 14 7 pst dec rawh pst str string 14 15 pst dec joy value 0 rawh pst str str...

Страница 6: ...Spin Object The Spin object joystick spin handles the scaling of the raw joystick data transforming the measurements into values that are more useful to a given application The following graph illust...

Страница 7: ...ntal Vertical To measure each wiper position the attached microcontroller will charge that wiper s capacitor by outputting a high on the associated pin Then it will tri state the pin and let the cap d...

Страница 8: ...basicstampsoftware STAMP BS2 PBASIC 2 5 LR VAR Word UD VAR Word DO HIGH 4 PAUSE 10 RCTIME 4 1 UD HIGH 11 PAUSE 10 RCTIME 11 1 LR DEBUG HOME Vert DEC UD CLREOL CR Horiz DEC LR CLREOL PAUSE 50 LOOP Pres...

Страница 9: ...n the vertical axis Tighten to disable the return to center action Screw B Loosen to remove friction from the vertical axis Tighten to add friction Screw C Loosen to remove detents from the vertical a...