layout stages with lexicographically ordered names

[challenge-bot] / arduino-sketches / follow / follow.ino

diff --git a/arduino-sketches/follow/follow.ino b/arduino-sketches/follow/follow.ino
deleted file mode 100644 (file)
index facaf06..0000000
--- a/arduino-sketches/follow/follow.ino
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-// define which pins are connected to which components
-int right_motor_speed_pin = 3; // orange wire
-int right_motor_forward_pin = 4; // brown
-int right_motor_backward_pin = 5; // purple
-
-int right_echo_pin = 6; // white
-int right_trigger_pin = 7; // blue
-
-int left_motor_speed_pin = 8; // orange
-int left_motor_forward_pin = 9; // brown
-int left_motor_backward_pin = 10; // purple
-
-int left_echo_pin = 11; // white
-int left_trigger_pin = 12; // blue
-
-// you'll need to adjust these based on your sonar sensor's behavior
-int desired_right_ping_time = 800;
-int desired_left_ping_time = 800;
-
-void on(int pin){
-  digitalWrite(pin, HIGH);}
-
-void off(int pin){
-  digitalWrite(pin, LOW);}
-
-void set_motor(int speed_pin,
-               int forward_pin,
-               int backward_pin,
-               int speed){
-  if(speed > 0){
-    off(backward_pin);
-    on(forward_pin);}
-  else if(speed < 0){
-    off(forward_pin);
-    on(backward_pin);
-    speed = -speed;}
-  else{ // speed is 0
-    off(forward_pin);
-    off(backward_pin);}
-  // since speed has been set positive, no need to check if speed < -255.
-  if(speed > 255){
-    speed = 255;}
-  analogWrite(speed_pin, speed);}
-
-void go(int left_motor_speed, int right_motor_speed){
-  set_motor(left_motor_speed_pin,
-            left_motor_forward_pin,
-            left_motor_backward_pin,
-            left_motor_speed);
-  set_motor(right_motor_speed_pin,
-            right_motor_forward_pin,
-            right_motor_backward_pin,
-            right_motor_speed);}
-
-int ping(int trigger, int echo){
-  int ping_time = 0;
-  // turn off trigger
-  off(trigger);
-  delayMicroseconds(2);
-  // turn on the trigger and leave it on long enough for the
-  // sonar sensor to notice
-  on(trigger);
-  delayMicroseconds(10);
-  off(trigger);
-  ping_time = pulseIn(echo, HIGH);
-  if(ping_time <= 0){
-    ping_time = 3000;}
-  // sonar needs some time to recover before pinging again,
-  // so make sure it gets enough sleep right here.  50 milliseconds
-  delay(50);
-  return ping_time;}
-
-void backup(int backup_time){
-  go(-250, -250);
-  delay(backup_time);}
-
-void turn_around(int turn_around_time){
-  go(-250, 250);
-  delay(turn_around_time);}
-
-void setup(){
-  Serial.begin(9600);
-
-  pinMode(right_motor_speed_pin, OUTPUT);
-  pinMode(right_motor_forward_pin, OUTPUT);
-  pinMode(right_motor_backward_pin, OUTPUT);
-
-  pinMode(right_echo_pin, INPUT);
-  pinMode(right_trigger_pin, OUTPUT);
-
-  pinMode(left_motor_speed_pin, OUTPUT);
-  pinMode(left_motor_forward_pin, OUTPUT);
-  pinMode(left_motor_backward_pin, OUTPUT);
-
-  pinMode(left_echo_pin, INPUT);
-  pinMode(left_trigger_pin, OUTPUT);
-
-  off(left_motor_speed_pin);
-  off(left_motor_forward_pin);
-  off(left_motor_backward_pin);
-  off(left_trigger_pin);
-
-  off(right_motor_speed_pin);
-  off(right_motor_forward_pin);
-  off(right_motor_backward_pin);
-  off(right_trigger_pin);}
-
-void loop(){
-  int left_speed;
-  int right_speed;
-
-  int forward_speed = 250;
-  int stop_speed = 0;
-
-  unsigned int actual_left_ping_time = ping(left_trigger_pin, left_echo_pin);
-  unsigned int actual_right_ping_time = ping(right_trigger_pin, right_echo_pin);
-
-  left_speed = actual_left_ping_time - desired_left_ping_time;
-  right_speed = actual_right_ping_time - desired_right_ping_time;
-
-  Serial.print("left: ping = ");
-  Serial.print(actual_left_ping_time);
-  Serial.print(" speed = ");
-  Serial.print(left_speed);
-  Serial.print(" right: ping = ");
-  Serial.print(actual_right_ping_time);
-  Serial.print(" speed = ");
-  Serial.println(right_speed);
-
-  go(left_speed, right_speed);}