Bluetooth communication for flocking.
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PsiSwarm/demo.cpp
- Committer:
- jah128
- Date:
- 2015-10-22
- Revision:
- 6:ff3c66f7372b
- Parent:
- 5:598298aa4900
File content as of revision 6:ff3c66f7372b:
/* University of York Robotics Laboratory PsiSwarm Library: Demo Mode Source File * * File: demo.cpp * * (C) Dept. Electronics & Computer Science, University of York * James Hilder, Alan Millard, Homero Elizondo, Jon Timmis * * PsiSwarm Library Version: 0.3 * * Version 0.2 : Remove most the functionality from center-button push to allow all operations to be accessable from * four directions alone. * Added extra sensor information, added various testing demos * * October 2015 * */ #include "psiswarm.h" // PID terms #define LF_P_TERM 0.2 #define LF_I_TERM 0 #define LF_D_TERM 4 char top_menu = 0; char sub_menu = 0; char level = 0; char started = 0; char topline[17]; char bottomline[17]; char led_state[9]; char all_led_state = 0; char base_led_state = 0; char brightness = 20; char bl_brightness = 100; char base_ir_index = 0; char side_ir_index = 0; signed short left_speed = 0; signed short right_speed = 0; char both_motor_mode = 0; char last_switch_pressed; Timeout demo_event; char handling_event = 0; Timeout demo_timeout; char demo_running = 0; Timer demo_timer; float time_out; float speed; char state; char led_step = 0; char spin_step = 0; char stress_step = 0; float lf_right; float lf_left; float lf_current_pos_of_line = 0.0; float lf_previous_pos_of_line = 0.0; float lf_derivative,lf_proportional,lf_integral = 0; float lf_power; float lf_speed = 0.4; void demo_mode() { debug("- Starting Demo Mode\n"); demo_on = 1; display.set_backlight_brightness(bl_brightness * 0.01f); display.clear_display(); display.write_string("PSI SWARM SYSTEM"); display.set_position(1,0); display.write_string(" DEMO MODE"); wait(0.5); display.clear_display(); display.write_string("Use cursor to"); display.set_position(1,0); display.write_string("navigate menus"); char step = 0; while(demo_on) { if(demo_running == 0) { switch(step) { case 0: mbed_led1 = 1; mbed_led2 = 0; break; case 1: mbed_led2 = 1; mbed_led1 = 0; break; } step++; if(step==2)step=0; } else { mbed_led1 = 0; mbed_led2 = 0; mbed_led3 = 0; mbed_led4 = 0; } wait(0.5); } debug("- Demo mode ended\n"); } void demo_handle_switch_event(char switch_pressed) { if(!handling_event) { handling_event = 1; last_switch_pressed = switch_pressed; demo_event.attach_us(&demo_event_thread, 1000); } } void demo_event_thread() { handling_event = 0; if(started == 1) { switch(last_switch_pressed) { case 1: //Up pressed switch(level) { case 0: if(top_menu < 6) { level++; sub_menu = 0; } else { demo_on = 0; user_code_running = user_code_restore_mode; } break; case 1: switch(top_menu) { case 0: //LED Menu if(sub_menu < 9) { if(led_state[sub_menu] == 0) led_state[sub_menu] = 3; else led_state[sub_menu]--; demo_update_leds(); } if(sub_menu == 9) { if(all_led_state == 0) all_led_state = 3; else all_led_state--; for(int i=0; i<9; i++) { led_state[i]=all_led_state; } demo_update_leds(); } if(sub_menu == 10) { base_led_state = 1 - base_led_state; demo_update_leds(); } if(sub_menu == 11) { switch(brightness) { case 100: brightness = 50; break; case 2: brightness = 1; break; case 5: brightness = 2; break; case 10: brightness = 5; break; case 20: brightness = 10; break; case 50: brightness = 20; break; } demo_update_leds(); } if(sub_menu == 12) { if(bl_brightness > 0) bl_brightness-=10; display.set_backlight_brightness(bl_brightness * 0.01f); } if(sub_menu == 13) level = 0; break; case 1: // Sensors Menu if(sub_menu == 4 || sub_menu == 5) { if(base_ir_index == 0) base_ir_index = 4; else base_ir_index --; } if(sub_menu > 5 && sub_menu < 9) { if(side_ir_index == 0) side_ir_index = 7; else side_ir_index --; } if(sub_menu == 11) level = 0; break; case 2: // Motor Menu if(sub_menu == 0) { left_speed += 5; if(left_speed > 100) left_speed = 100; set_left_motor_speed(left_speed / 100.0f); } if(sub_menu == 1) { right_speed += 5; if(right_speed > 100) right_speed = 100; set_right_motor_speed(right_speed / 100.0f); } if(sub_menu == 2) { if(both_motor_mode == 0) both_motor_mode=5; else both_motor_mode--; switch(both_motor_mode) { case 0: stop(); break; case 1: brake(); break; case 2: forward(0.5); break; case 3: forward(1); break; case 4: backward(0.5); break; case 5: backward(1.0); break; } } if(sub_menu == 3) { level = 0; } break; case 3: // Radio Menu if(sub_menu == 0) level = 0; break; case 4: // Info Menu if(sub_menu == 6) level = 0; break; case 5: // Demo Menu if(sub_menu == 0) { if(demo_running == 0) { start_line_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 1) { if(demo_running == 0) { start_obstacle_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 2) { if(demo_running == 0) { start_spinning_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 3) { if(demo_running == 0) { start_stress_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 4) level = 0; break; } break; } break; case 2: //Down pressed switch(level) { case 0: if(top_menu < 6) { level++; sub_menu = 0; } else { demo_on = 0; user_code_running = user_code_restore_mode; } break; case 1: switch(top_menu) { case 0: //LED Menu if(sub_menu < 9) { led_state[sub_menu]++; if(led_state[sub_menu] == 4) led_state[sub_menu] = 0; demo_update_leds(); } if(sub_menu == 9) { all_led_state++; if(all_led_state == 4) all_led_state = 0; for(int i=0; i<9; i++) { led_state[i]=all_led_state; } demo_update_leds(); } if(sub_menu == 10) { base_led_state = 1 - base_led_state; demo_update_leds(); } if(sub_menu == 11) { switch(brightness) { case 1: brightness = 2; break; case 2: brightness = 5; break; case 5: brightness = 10; break; case 10: brightness = 20; break; case 20: brightness = 50; break; case 50: brightness = 100; break; } demo_update_leds(); } if(sub_menu == 12) { if(bl_brightness < 100) bl_brightness+=10; display.set_backlight_brightness(bl_brightness * 0.01f); } if(sub_menu == 13) level = 0; break; case 1: // Sensors Menu if(sub_menu == 4 || sub_menu == 5) { if(base_ir_index == 4) base_ir_index = 0; else base_ir_index ++; } if(sub_menu > 5 && sub_menu < 9) { if(side_ir_index == 7) side_ir_index = 0; else side_ir_index ++; } if(sub_menu == 11) level = 0; break; case 2: // Motor Menu if(sub_menu == 0) { left_speed -= 5; if(left_speed < -100) left_speed = -100; set_left_motor_speed(left_speed / 100.0f); } if(sub_menu == 1) { right_speed -= 5; if(right_speed < -100) right_speed = -100; set_right_motor_speed(right_speed / 100.0f); } if(sub_menu == 2) { both_motor_mode++; if(both_motor_mode == 6) both_motor_mode=0; switch(both_motor_mode) { case 0: stop(); break; case 1: brake(); break; case 2: forward(0.5); break; case 3: forward(1); break; case 4: backward(0.5); break; case 5: backward(1.0); break; } } if(sub_menu == 3) { level = 0; } break; case 3: // Radio Menu if(sub_menu == 0) level = 0; break; case 4: // Info Menu if(sub_menu == 6) level = 0; break; case 5: // Demo Menu if(sub_menu == 0) { if(demo_running == 0) { start_line_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 1) { if(demo_running == 0) { start_obstacle_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 2) { if(demo_running == 0) { start_spinning_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 3) { if(demo_running == 0) { start_stress_demo(); } else { demo_running = 0; display.set_backlight_brightness(bl_brightness * 0.01f); stop(); } } if(sub_menu == 4) level = 0; break; } break; } break; case 4: //Left pressed switch(level) { case 0: if(top_menu == 0) top_menu = 6; else top_menu --; break; case 1: switch(top_menu) { case 0: //LED Menu if(sub_menu == 0) sub_menu = 13; else sub_menu --; break; case 1: //Sensors Menu if(sub_menu == 0) sub_menu = 11; else sub_menu --; break; case 2: //Motor Menu if(sub_menu == 0) sub_menu = 3; else sub_menu --; break; case 4: //Info Menu if(sub_menu == 0) sub_menu = 6; else sub_menu --; break; case 5: //Demo Menu if(sub_menu == 0) sub_menu = 4; else sub_menu --; break; } break; } break; case 8: //Right pressed switch(level) { case 0: top_menu ++; if(top_menu > 6) top_menu = 0; break; case 1: switch(top_menu) { case 0: //LED Menu if(sub_menu == 13) sub_menu = 0; else sub_menu ++; break; case 1: //Sensors Menu if(sub_menu == 11) sub_menu = 0; else sub_menu ++; break; case 2: //Motor Menu if(sub_menu == 3) sub_menu = 0; else sub_menu ++; break; case 4: //Info Menu if(sub_menu == 6) sub_menu = 0; else sub_menu ++; break; case 5: //Demo Menu if(sub_menu == 4) sub_menu = 0; else sub_menu ++; break; } break; } break; case 16: //Select pressed switch(level) { case 0: if(top_menu < 6) { level++; sub_menu = 0; } else { demo_on = 0; user_code_running = user_code_restore_mode; } break; case 1: switch(top_menu) { case 0: //LED Menu if(sub_menu == 9) { for(int i=0; i<9; i++) { led_state[i]=all_led_state; } demo_update_leds(); } if(sub_menu == 13) level = 0; break; case 1: // Sensors Menu if(sub_menu == 11) level = 0; break; case 2: //Motor Menu if(sub_menu == 2) { switch(both_motor_mode) { case 0: stop(); break; case 1: brake(); break; case 2: forward(0.5); break; case 3: forward(1); break; case 4: backward(0.5); break; case 5: backward(1.0); break; } } if(sub_menu == 3) { level = 0; } break; case 3: // Radio Menu if(sub_menu == 0) level = 0; break; case 4: // Info Menu if(sub_menu == 6) level = 0; break; case 5: // Demo Menu if(sub_menu == 4) level = 0; break; } break; } break; } } else started = 1; display.clear_display(); switch(level) { case 0: //Top level menu switch(top_menu) { case 0: strcpy(topline,"---TEST LEDS----"); break; case 1: strcpy(topline,"--TEST SENSORS--"); break; case 2: strcpy(topline,"--TEST MOTORS---"); break; case 3: strcpy(topline,"---TEST RADIO---"); break; case 4: strcpy(topline,"------INFO------"); break; case 5: strcpy(topline,"---CODE DEMOS---"); break; case 6: strcpy(topline,"------EXIT------"); break; } strcpy(bottomline,""); break; case 1: //Sub level menu switch(top_menu) { case 0: strcpy(topline,"----LED MENU----"); char led_status[7]; if(sub_menu<9) { switch(led_state[sub_menu]) { case 0: strcpy(led_status,"OFF"); break; case 1: strcpy(led_status,"RED"); break; case 2: strcpy(led_status,"GREEN"); break; case 3: strcpy(led_status,"YELLOW"); break; } } if(sub_menu < 8) sprintf(bottomline,"OUTER %d: %s",(sub_menu + 1),led_status); if(sub_menu == 8) sprintf(bottomline,"CENTER: %s",led_status); if(sub_menu == 9) { switch(all_led_state) { case 0: strcpy(led_status,"OFF"); break; case 1: strcpy(led_status,"RED"); break; case 2: strcpy(led_status,"GREEN"); break; case 3: strcpy(led_status,"YELLOW"); break; } sprintf(bottomline,"SET ALL %s", led_status); } if(sub_menu == 10) { if(base_led_state == 0) strcpy(led_status,"OFF"); else strcpy(led_status,"ON"); sprintf(bottomline,"BASE: %s",led_status); } if(sub_menu == 11) sprintf(bottomline,"CLED BNESS %d%%", brightness); if(sub_menu == 12) sprintf(bottomline,"DISP BNESS %d%%", bl_brightness); if(sub_menu == 13) strcpy(bottomline,"EXIT"); break; case 1: strcpy(topline,"--SENSORS MENU--"); switch(sub_menu) { case 0: { float battery = get_battery_voltage (); sprintf(bottomline,"BATTERY: %1.3fV",battery); break; } case 1: { float dc = get_dc_voltage (); sprintf(bottomline,"DC: %1.3fV",dc); break; } case 2: { float current = get_current (); sprintf(bottomline,"CURRENT: %1.3fA",current); break; } case 3: { float temperature = get_temperature(); sprintf(bottomline,"TEMP: %3.2fC", temperature); break; } case 4: store_background_base_ir_values(); sprintf(bottomline,"BIR%dB:%d",base_ir_index+1,get_background_base_ir_value(base_ir_index)); break; case 5: store_illuminated_base_ir_values(); sprintf(bottomline,"BIR%dR:%d",base_ir_index+1,get_illuminated_base_ir_value(base_ir_index)); break; case 6: store_background_raw_ir_values(); sprintf(bottomline,"SIR%dB:%d",side_ir_index+1,get_background_raw_ir_value(side_ir_index)); break; case 7: store_illuminated_raw_ir_values(); sprintf(bottomline,"SIR%dR:%d",side_ir_index+1,get_illuminated_raw_ir_value(side_ir_index)); break; case 8: sprintf(bottomline,"SIR%dD:%3.1f",side_ir_index+1,0.0); break; case 9: if(ultrasonic_distance_updated == 1) { sprintf(bottomline,"USONIC:%3dcm",ultrasonic_distance); } else sprintf(bottomline,"USONIC:---------"); update_ultrasonic_measure(); break; case 10: store_line_position(); if(line_found == 1)sprintf(bottomline,"LINE:%1.3f",line_position); else sprintf(bottomline,"LINE:---------"); break; case 11: sprintf(bottomline,"EXIT"); break; } break; case 2: strcpy(topline,"--MOTORS MENU---"); switch(sub_menu) { case 0: sprintf(bottomline,"LEFT: %d%%", left_speed); break; case 1: sprintf(bottomline,"RIGHT: %d%%", right_speed); break; case 2: char both_mode_string[16]; switch(both_motor_mode) { case 0: strcpy(both_mode_string,"OFF"); break; case 1: strcpy(both_mode_string,"BRAKE"); break; case 2: strcpy(both_mode_string,"+50%"); break; case 3: strcpy(both_mode_string,"+100%"); break; case 4: strcpy(both_mode_string,"-50%"); break; case 5: strcpy(both_mode_string,"-100%"); break; } sprintf(bottomline,"BOTH TO %s",both_mode_string); break; case 3: sprintf(bottomline,"EXIT"); break; } break; case 3: strcpy(topline,"---RADIO MENU---"); switch(sub_menu) { case 0: sprintf(bottomline,"EXIT"); break; } break; case 4: strcpy(topline,"---INFO MENU----"); switch(sub_menu) { case 0: sprintf(bottomline,"ROBOT ID: %d",robot_id); break; case 1: sprintf(bottomline,"SOFTWARE: %1.2f",SOFTWARE_VERSION_CODE); break; case 2: if(firmware_version > 0) sprintf(bottomline,"FIRMWARE: %1.2f",firmware_version); else sprintf(bottomline,"FIRMWARE: ?????"); break; case 3: sprintf(bottomline,"PROG:%s",program_name); break; case 4: sprintf(bottomline,"AUTH:%s",author_name); break; case 5: sprintf(bottomline,"VER:%s",version_name); break; case 6: sprintf(bottomline,"EXIT"); break; } break; case 5: strcpy(topline,"---CODE DEMOS---"); switch(sub_menu) { case 0: sprintf(bottomline,"LINE FOLLOW"); break; case 1: sprintf(bottomline,"OBST. AVOID"); break; case 2: sprintf(bottomline,"COLOUR SPIN"); break; case 3: sprintf(bottomline,"STRESS TEST"); break; case 4: sprintf(bottomline,"EXIT"); break; } break; case 6: strcpy(topline,""); break; } break; } display.write_string(topline); display.set_position(1,0); display.write_string(bottomline); if(top_menu == 1 && level == 1) { demo_event.attach(&demo_event_thread, 0.25); } } void start_line_demo() { display.set_backlight_brightness(0); time_out = 0.25f; demo_timer.start(); state = 0; speed = 0; led_step = 0; demo_running = 1; demo_timeout.attach_us(&line_demo_cycle,1000); } void start_obstacle_demo() { display.set_backlight_brightness(0); time_out = 0.25f; demo_timer.start(); state = 0; speed = 0; led_step = 0; demo_running = 1; demo_timeout.attach_us(&obstacle_demo_cycle,1000); } void start_stress_demo() { display.set_backlight_brightness(0.25); display.write_string("STRESS TEST"); display.set_position(1,0); display.write_string("----25%----"); time_out = 0.04f; demo_timer.start(); state = 0; speed = 0; stress_step = 0; spin_step = 0; demo_running = 1; demo_timeout.attach_us(&stress_demo_cycle,1000); } void start_spinning_demo() { display.set_backlight_brightness(0); time_out = 0.0f; demo_timer.start(); state = 0; speed = 0; led_step = 0; spin_step = 0; demo_running = 1; demo_timeout.attach_us(&spinning_demo_cycle,1000); } void line_demo_cycle() { if(demo_timer.read() > time_out) { store_line_position(); if(line_found) { time_out = 0.01f; state = 0; // Get the position of the line. lf_current_pos_of_line = line_position; lf_proportional = lf_current_pos_of_line; // Compute the derivative lf_derivative = lf_current_pos_of_line - lf_previous_pos_of_line; // Compute the integral lf_integral += lf_proportional; // Remember the last position. lf_previous_pos_of_line = lf_current_pos_of_line; // Compute the power lf_power = (lf_proportional * (LF_P_TERM) ) + (lf_integral*(LF_I_TERM)) + (lf_derivative*(LF_D_TERM)) ; // Compute new speeds lf_right = lf_speed-lf_power; lf_left = lf_speed+lf_power; // limit checks if (lf_right < 0) lf_right = 0; else if (lf_right > 1.0f) lf_right = 1.0f; if (lf_left < 0) lf_left = 0; else if (lf_left > 1.0f) lf_left = 1.0f; }else{ //Cannot see line: hunt for it if(lf_left > lf_right){ //Currently turning left, keep turning left state ++; float d_step = state * 0.04; lf_left = 0.2 + d_step; lf_right = -0.2 - d_step; if(state > 20){ state = 0; lf_right = 0.2; lf_left = -0.2; time_out += 0.01f; if(time_out > 0.1f) demo_running = 0; } }else{ //Currently turning right, keep turning right state ++; float d_step = state * 0.04; lf_left = -0.2 - d_step; lf_right = 0.2 + d_step; if(state > 20){ state = 0; lf_right = -0.2; lf_left = 0.2; time_out += 0.01f; if(time_out > 0.1f) demo_running = 0; } } } // set speed set_left_motor_speed(lf_left); set_right_motor_speed(lf_right); demo_timer.reset(); } if(demo_running == 1)demo_timeout.attach_us(&line_demo_cycle,500); else { stop(); display.set_backlight_brightness(bl_brightness * 0.01f); } } void stress_demo_cycle() { if(demo_timer.read() > time_out) { float pct = 0.25 + (0.25 * stress_step); switch(state) { case 0: if(spin_step % 2 == 0) { forward(pct); set_leds(0xFF,0xFF); } else { backward(pct); set_leds(0,0xFF); } spin_step ++; if(spin_step > 199) { state ++; spin_step = 0; } break; case 1: if(stress_step < 3) stress_step ++; float pct = 0.25 + (0.25 * stress_step); display.set_backlight_brightness(pct); display.set_position(1,0); switch(stress_step) { case 1: display.write_string("----50%----"); break; case 2: display.write_string("----75%----"); break; case 3: display.write_string("---100%----"); break; } state = 0; break; } demo_timer.reset(); } if(demo_running == 1)demo_timeout.attach_us(&stress_demo_cycle,500); else { stop(); display.set_backlight_brightness(bl_brightness * 0.01f); } } void spinning_demo_cycle() { if(demo_timer.read() > time_out) { switch(state) { case 0: //Robot is stopped set_leds(0,0xFF); set_center_led(1,1); speed = 0.1f; brake(); time_out = 0.5; state = 1; led_step = 0; break; case 1: //Motor is turning right, accelerating time_out = 0.1; set_center_led(2,1); switch(led_step) { case 0: set_leds(0x01,0); break; case 1: set_leds(0x02,0); break; case 2: set_leds(0x04,0); break; case 3: set_leds(0x08,0); break; case 4: set_leds(0x10,0); break; case 5: set_leds(0x20,0); break; case 6: set_leds(0x40,0); break; case 7: set_leds(0x80,0); break; } led_step ++; if(led_step == 8) led_step =0; if(speed < 1) { speed += 0.0125; turn(speed); } else { state = 2; spin_step = 0; led_step =0; } break; case 2: //Motor is turning right, full speed set_center_led(3,1); switch(led_step) { case 0: set_leds(0x33,0x33); break; case 1: set_leds(0x66,0x66); break; case 2: set_leds(0xCC,0xCC); break; case 3: set_leds(0x99,0x99); break; } led_step ++; if(led_step == 4) led_step = 0; spin_step ++; if(spin_step == 40) { state = 3; led_step = 0; } break; case 3: //Motor is turning right, decelerating set_center_led(2,1); switch(led_step) { case 0: set_leds(0x01,0); break; case 1: set_leds(0x02,0); break; case 2: set_leds(0x04,0); break; case 3: set_leds(0x08,0); break; case 4: set_leds(0x10,0); break; case 5: set_leds(0x20,0); break; case 6: set_leds(0x40,0); break; case 7: set_leds(0x80,0); break; } if(led_step == 0) led_step =8; led_step --; if(speed > 0.1) { speed -= 0.025; turn(speed); } else { state = 4; spin_step = 0; led_step =0; } break; case 4: //Robot is stopped set_leds(0,0xFF); set_center_led(1,1); speed = 0.1f; brake(); time_out = 0.5; led_step =0; state = 5; break; case 5: //Motor is turning left, accelerating time_out = 0.1; set_center_led(2,1); switch(led_step) { case 0: set_leds(0x01,0); break; case 1: set_leds(0x02,0); break; case 2: set_leds(0x04,0); break; case 3: set_leds(0x08,0); break; case 4: set_leds(0x10,0); break; case 5: set_leds(0x20,0); break; case 6: set_leds(0x40,0); break; case 7: set_leds(0x80,0); break; } if(led_step == 0) led_step =8; led_step --; if(speed < 1) { speed += 0.0125; turn(-speed); } else { state = 6; spin_step = 0; led_step = 0; } break; case 6: //Motor is turning left, full speed set_center_led(3,1); switch(led_step) { case 0: set_leds(0x33,0x33); break; case 1: set_leds(0x66,0x66); break; case 2: set_leds(0xCC,0xCC); break; case 3: set_leds(0x99,0x99); break; } if(led_step == 0) led_step = 4; led_step --; spin_step ++; if(spin_step == 40) { state = 7; led_step = 0; } break; case 7: //Motor is turning left, decelerating set_center_led(2,1); switch(led_step) { case 0: set_leds(0x01,0); break; case 1: set_leds(0x02,0); break; case 2: set_leds(0x04,0); break; case 3: set_leds(0x08,0); break; case 4: set_leds(0x10,0); break; case 5: set_leds(0x20,0); break; case 6: set_leds(0x40,0); break; case 7: set_leds(0x80,0); break; } led_step ++; if(led_step == 8) led_step =0; if(speed > 0.1) { speed -= 0.025; turn(-speed); } else { state = 0; spin_step = 0; led_step = 0; } break; } demo_timer.reset(); } if(demo_running == 1)demo_timeout.attach_us(&spinning_demo_cycle,500); else { stop(); display.set_backlight_brightness(bl_brightness * 0.01f); } } void obstacle_demo_cycle() { if(demo_timer.read() > time_out) { switch(state) { case 0: //Robot is stopped set_leds(0,0xFF); set_center_led(1,0.4); speed = 0.3f; forward(speed); time_out = 0.05; state = 1; break; case 1: { //Motor is moving forward store_ir_values(); int front_right = read_illuminated_raw_ir_value(0); int front_left = read_illuminated_raw_ir_value(7); if(front_left > 400 || front_right > 400) { brake(); time_out = 0.04; if(front_left > front_right)state=2; else state=3; } else { if(speed < 0.5) { speed += 0.03; forward(speed); } switch(led_step) { case 0: set_leds(0x01,0); break; case 1: set_leds(0x38,0); break; case 2: set_leds(0x6C,0); break; case 3: set_leds(0xC6,0); break; case 4: set_leds(0x83,0); break; } set_center_led(2, 0.6); led_step ++; if(led_step == 5) led_step = 0; } break; } case 2: //Turn right set_left_motor_speed(0.85); set_right_motor_speed(-0.85); time_out = 0.4; state = 0; set_leds(0x0E,0x0E); set_center_led(3,0.5); break; case 3: //Turn left set_left_motor_speed(-0.85); set_right_motor_speed(0.85); time_out = 0.4; state = 0; set_leds(0xE0,0xE0); set_center_led(3,0.5); break; } demo_timer.reset(); } if(demo_running == 1)demo_timeout.attach_us(&obstacle_demo_cycle,200); else { stop(); display.set_backlight_brightness(bl_brightness * 0.01f); } } void demo_update_leds() { char red = 0; char green = 0; for(int i=0; i<8; i++) { if(led_state[i]==1 || led_state[i]==3) red+=(1<<i); if(led_state[i]==2 || led_state[i]==3) green+=(1<<i); } set_leds(green,red); float brightness_f = brightness / 100.0f; set_center_led(led_state[8], brightness_f); set_base_led(base_led_state); }