——來自迪文開發者論壇
本期為大家推送迪文開發者論壇獲獎開源案例——隔空手勢識別測試系統。工程師采用7英寸COF智能屏，通過T5L OS核與PAJ7620U2手勢識別傳感器進行數據交互，不需要使用任何按鍵，只需將手貼近傳感器即可進入菜單系統控制屏幕，實現上、下、左、右、貼近、遠離、左旋轉、右旋轉、揮手9種手勢效果。不一樣的屏幕交互體驗，推薦大家前來觀看！

UI素材展示

UI開發示例

C51代碼設計 T5L OS核與PAJ7620U2手勢識別傳感器進行數據交互，檢測當前的手勢，判斷當前顯示的圖片和翻頁顯示的圖片，實現利用手勢來切換頁面的功能。參考代碼如下：

void select_operate(uint16_t gesrure_value){ if(gesrure_value == GES_UP) //上 { if(select_value >= 2) { select_value -= 2; } dgus_show_variate_icon_location_set(SELECT_DESCRIBE_RECTANGLE, select_pos[select_value][0], select_pos[select_value][1]); } else if(gesrure_value == GES_DOWN) //下 { if(select_value <= 1) { select_value += 2; } dgus_show_variate_icon_location_set(SELECT_DESCRIBE_RECTANGLE, select_pos[select_value][0], select_pos[select_value][1]); } else if(gesrure_value == GES_LEFT) //左 { if(select_value % 2 == 1) { select_value -= 1; } dgus_show_variate_icon_location_set(SELECT_DESCRIBE_RECTANGLE, select_pos[select_value][0], select_pos[select_value][1]); } else if(gesrure_value == GES_RIGHT) //右 { if(select_value % 2 == 0) { select_value += 1; } dgus_show_variate_icon_location_set(SELECT_DESCRIBE_RECTANGLE, select_pos[select_value][0], select_pos[select_value][1]); }}
void turning_operate(uint16_t gesrure_value){ uint16_t i = 0; uint8_t turning_mode = 0; //翻頁模式，0上，1下，2左，3右 uint16_t turning_count = 0; //翻頁最終次數 if(gesrure_value == GES_UP || gesrure_value == GES_DOWN || gesrure_value == GES_LEFT || gesrure_value == GES_RIGHT) { if(gesrure_value == GES_UP) //上 { turning_mode = 0; turning_count = 48; } else if(gesrure_value == GES_DOWN) //下 { turning_mode = 1; turning_count = 48; } else if(gesrure_value == GES_LEFT) //左 { turning_mode = 2; turning_count = 80; } else if(gesrure_value == GES_RIGHT) //右 { turning_mode = 3; turning_count = 80; } if(turning_current_image == 0 || turning_current_image == 2) { turning_current_image = 1; } else { turning_current_image = 2; } for(i = 0;i <= turning_count;i++) { switch(turning_mode) { case 0: dgus_show_variate_icon_location_set(turning_current_image * 0x100 + 0x2000, 0, 480 - i * 10); t5l0_sys_delay_ms(20); if(turning_last_image != 0) { dgus_show_variate_icon_location_set(turning_last_image * 0x100 + 0x2000, 0, 0 - i * 10); } break; case 1: dgus_show_variate_icon_location_set(turning_current_image * 0x100 + 0x2000, 0, -480 + i * 10); t5l0_sys_delay_ms(20); if(turning_last_image != 0) { dgus_show_variate_icon_location_set(turning_last_image * 0x100 + 0x2000, 0, 0 + i * 10); } break; case 2: dgus_show_variate_icon_location_set(turning_current_image * 0x100 + 0x2000, 800 - i * 10, 0); t5l0_sys_delay_ms(20); if(turning_last_image != 0) { dgus_show_variate_icon_location_set(turning_last_image * 0x100 + 0x2000, 0 - i * 10, 0); } break; case 3: dgus_show_variate_icon_location_set(turning_current_image * 0x100 + 0x2000, -800 + i * 10, 0); t5l0_sys_delay_ms(20); if(turning_last_image != 0) { dgus_show_variate_icon_location_set(turning_last_image * 0x100 + 0x2000, 0 + i * 10, 0); } break; } t5l0_sys_delay_ms(20); } turning_last_image = turning_current_image; }}