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en:c2_rotary-encoder_on_android [2017/04/11 15:30] luke.go |
en:c2_rotary-encoder_on_android [2017/04/12 16:38] (current) codewalker |
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| This page explains how to use the Rotary-Encoder example. \\ | This page explains how to use the Rotary-Encoder example. \\ | ||
| It can be used for volume control, page up/down and etc. \\ | It can be used for volume control, page up/down and etc. \\ | ||
| - | This is a Rotary-Encoder control example App project. [[https://github.com/codewalkerster/RotaryEncoder|Rotary-Encoder controller]] | ||
| + | Rotary-Encoder control example App project : [[https://github.com/codewalkerster/RotaryEncoder|Rotary-Encoder controller]] \\ | ||
| + | Applied patches to kernel : [[https://github.com/hardkernel/linux/commit/8ade58eac365fbc2386ce1a3663f1508c1431c99|patch 1]], [[https://github.com/hardkernel/linux/commit/699df5848d06c0d527066a9ffef84ccc5e766a5d|patch 2]]\\ | ||
| + | [[http://www.bourns.com/docs/Product-Datasheets/PEL12T.pdf|PEL12T Data sheet]] | ||
| === Rotary-Encoder circuit === | === Rotary-Encoder circuit === | ||
| If you want to connect pin to another GPIO pin, please check GPIO description.[[en:c2_hardware&#expansion_connectors|GPIO Pin description]] \\ | If you want to connect pin to another GPIO pin, please check GPIO description.[[en:c2_hardware&#expansion_connectors|GPIO Pin description]] \\ | ||
| Line 17: | Line 19: | ||
| The schematic of Rotary-Encoder circuit. \\ | The schematic of Rotary-Encoder circuit. \\ | ||
| {{:en:rotary_encoder_schem.png?direct&200|}} \\ | {{:en:rotary_encoder_schem.png?direct&200|}} \\ | ||
| + | |||
| + | {{:en:rotary.jpg?direct&300|}} | ||
| === Result of using Rotary-Encoder and Controller app === | === Result of using Rotary-Encoder and Controller app === | ||
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| [[http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlkeycodes.html|reference]] \\ | [[http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlkeycodes.html|reference]] \\ | ||
| - | In first screen shot, Count clock wise operation is mapped to Volum Up, clock wise operations is mapped to Voluem Down and switch button(push the rotatry-encoder) is mapped to mute key. \\ | + | In first screen shot, Count clock wise operation is mapped to Volume Down, clock wise operations is mapped to Volume Up and switch button(push the Rotary-encoder) is mapped to mute key. \\ |
| - | {{:en:volume_control.png?direct&200|}} \\ | + | {{:en:volume_control.png?direct&400|}} \\ |
| In second, Count clock wise operation is mapped to KEYCODE_DPAD_DOWN, clock wise operations is mapped to KEYCODE_DPAD_UP, and switch button is mapped to KEYCODE_ENTER. \\ | In second, Count clock wise operation is mapped to KEYCODE_DPAD_DOWN, clock wise operations is mapped to KEYCODE_DPAD_UP, and switch button is mapped to KEYCODE_ENTER. \\ | ||
| - | {{:en:up_down.png?direct&200|}} | + | {{:en:up_down.png?direct&400|}} |
