93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
/**
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* Dennis Gunia (c) 2022
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*
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* USB Keyboard for Worship song-switching
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*
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*
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* Designed for Arduino Pro Micro
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*
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* Use pin 8 and 9 as inputs. Connect Switches to Ground.
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*
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* You may not use this file except in compliance with the License.
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* A copy of the License is located at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* or in the "license" file accompanying this file. This file is distributed
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* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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#include <Keyboard.h>
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#define SW_1_PIN 8
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#define SW_2_PIN 9
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#define debounceTimeConst 200 //debounce time in ms
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unsigned long sw1_debounce = 0; //debounce var (last time button was pressed)
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unsigned long sw2_debounce = 0; //debounce var (last time button was pressed)
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void setup() {
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// Set input pins with pullup
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pinMode(SW_1_PIN, INPUT_PULLUP);
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pinMode(SW_2_PIN, INPUT_PULLUP);
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//Initialize USB Keyboard
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Keyboard.begin();
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}
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void loop() {
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unsigned long now = millis(); //timestamp of start of loop
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// debounce button 1
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if(digitalRead(SW_1_PIN) == false){
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if(sw1_debounce + debounceTimeConst < now){
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unsigned long pressed = millis(); //store time when button is pressed
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delay(150); //initial delay to compensate bounce
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while( digitalRead(SW_1_PIN) == false ){
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// wait for button release
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}
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if (pressed + 1000 > millis() ) {
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// pressed shorter than 1s
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pdf_up();
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}else{
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// pressed longer than 1s
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pdf_top();
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}
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}
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sw1_debounce = now;
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}
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// debounce button 2
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if(digitalRead(SW_2_PIN) == false){
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if(sw2_debounce + debounceTimeConst < now){ pdf_down(); }
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sw2_debounce = now;
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}
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//Serial.println(sw1_debounce);
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}
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//Keyborad Event definitions
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void pdf_up() {
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Keyboard.press(KEY_PAGE_UP);
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//Keyboard.press(KEY_LEFT_ARROW);
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delay(100);
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Keyboard.releaseAll();
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}
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void pdf_down() {
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Keyboard.press(KEY_PAGE_DOWN);
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//Keyboard.press(KEY_RIGHT_ARROW);
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delay(100);
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Keyboard.releaseAll();
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}
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void pdf_top() {
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Keyboard.press(KEY_RIGHT_GUI);
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Keyboard.press(KEY_UP_ARROW);
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delay(100);
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Keyboard.releaseAll();
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}
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